{"id":388,"date":"2016-03-01T14:48:26","date_gmt":"2016-03-01T12:48:26","guid":{"rendered":"https:\/\/ways4.eu\/?page_id=388"},"modified":"2019-04-14T13:48:32","modified_gmt":"2019-04-14T11:48:32","slug":"linux-unix","status":"publish","type":"page","link":"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/","title":{"rendered":"Linux &#038; Unix"},"content":{"rendered":"<p><div class=\"add_posts\"><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2023\/01\/28\/rfid-wemos-rc522-homie-mqtt-nodered\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_44_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" area-label=\"ez-toc-toggle-icon-1\"><label for=\"item-69db44a841dba\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-69db44a841dba\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#RFID_Scanner_mit_WeMos_RC522_Homie_MQTT_NodeRED_in_LEGO_Gehaeuse_%F0%9F%99%82\" title=\"RFID Scanner mit WeMos, RC522, Homie MQTT &#038; NodeRED in LEGO Geh\u00e4use \ud83d\ude42\">RFID Scanner mit WeMos, RC522, Homie MQTT &#038; NodeRED in LEGO Geh\u00e4use \ud83d\ude42<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#MQTT-Server_mosquitto_auf_Raspberry_Smarthome-Server_startet_nicht\" title=\"MQTT-Server mosquitto auf Raspberry Smarthome-Server startet nicht\">MQTT-Server mosquitto auf Raspberry Smarthome-Server startet nicht<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#RFID_Tutorial_zur_Integration_von_RFID_in_die_NodeRED-Umgebung_mithilfe_der_IBM_BlueMIX-Technologie\" title=\"RFID: Tutorial zur Integration von RFID in die NodeRED-Umgebung mithilfe der IBM BlueMIX-Technologie\">RFID: Tutorial zur Integration von RFID in die NodeRED-Umgebung mithilfe der IBM BlueMIX-Technologie<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#RFID_Lese-_Schreibgeraet_installieren_und_betreiben_mit_RC522_MIFARE_RFID_Device\" title=\"RFID Lese- \/ Schreibger\u00e4t installieren und betreiben mit RC522 MIFARE RFID Device\">RFID Lese- \/ Schreibger\u00e4t installieren und betreiben mit RC522 MIFARE RFID Device<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#RFID_Arduino_spricht_RFID_sehr_nuetzliche_Anleitung\" title=\"RFID: Arduino spricht RFID, sehr n\u00fctzliche Anleitung !\">RFID: Arduino spricht RFID, sehr n\u00fctzliche Anleitung !<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#Nodemcu_Link_to_NodeMCU_Documentation\" title=\"Nodemcu: Link to NodeMCU Documentation\">Nodemcu: Link to NodeMCU Documentation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#MQTT_Public_MQTT_Broker\" title=\"MQTT: Public MQTT Broker\">MQTT: Public MQTT Broker<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#Arduino_Kommunikation_ueber_MQTT\" title=\"Arduino: Kommunikation \u00fcber MQTT\">Arduino: Kommunikation \u00fcber MQTT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#Arduino_Anwendung_mit_Servomotoren\" title=\"Arduino: Anwendung mit Servomotoren\">Arduino: Anwendung mit Servomotoren<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#Linux-commands_ssh_tunneling_remote_server_to_localhost\" title=\"Linux-commands:  ssh tunneling remote server to localhost\">Linux-commands:  ssh tunneling remote server to localhost<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#Linux-Commands_Rapidly_invoke_editor_to_type_long_and_complex_command\" title=\"Linux-Commands: Rapidly invoke editor to type long and complex command\">Linux-Commands: Rapidly invoke editor to type long and complex command<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#Linux_Command_Run_the_last_command_as_root\" title=\"Linux Command: Run the last command as root\">Linux Command: Run the last command as root<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#AWK_in_Linux\" title=\"AWK in Linux\">AWK in Linux<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#Alias-Command_in_Linux\" title=\"Alias-Command in Linux\">Alias-Command in Linux<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/ways4.eu\/de\/computers-and-it\/linux-unix\/#A_nice_app\" title=\"A nice app\">A nice app<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"RFID_Scanner_mit_WeMos_RC522_Homie_MQTT_NodeRED_in_LEGO_Gehaeuse_%F0%9F%99%82\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2023\/01\/28\/rfid-wemos-rc522-homie-mqtt-nodered\/\">RFID Scanner mit WeMos, RC522, Homie MQTT &#038; NodeRED in LEGO Geh\u00e4use \ud83d\ude42<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p>Ein weiterer Link zu einem interessanten Bericht \u00fcber ein Projekt, bei dem ein RC522 RFID-Reader als Eingabestation in ein LEGO-Geh\u00e4use eingebaut wurde, das Ganze dann sehr durchdacht mit einem Mikrocontroller auf 8266-Basis und RasPi und softwareseitig mit Homie MQTT umgesetzt und in NodeRED implementiert. Alles sehr lohnenswerte Ans\u00e4tze, imho durchaus einen tieferen Einblick in die gew\u00e4hlten Anwendungstechnologien wert. Und da sich LEGO-Steine heutzutage recht gut in 3D-Druckern herstellen lassen (es gibt gen\u00fcgend Vorlagen auf thingiverse.com), kann das Geh\u00e4use auch gebaut werden, ohne die LEGO-Kinderkiste zu pl\u00fcndern.<\/p>\n<p>http:\/\/www.internetoflego.com\/rfid-scanner-wemos-rc522-mqtt\/<\/p>\n<p>&nbsp;<\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2023\/01\/28\/rfid-wemos-rc522-homie-mqtt-nodered\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2019\/12\/16\/mqtt-server-mosquitto-on-raspberry-smarthome-server-does-not-start\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"MQTT-Server_mosquitto_auf_Raspberry_Smarthome-Server_startet_nicht\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2019\/12\/16\/mqtt-server-mosquitto-on-raspberry-smarthome-server-does-not-start\/\">MQTT-Server mosquitto auf Raspberry Smarthome-Server startet nicht<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><h4 style=\"text-align: center;\"><span style=\"text-decoration: underline;\">Problem<\/span><\/h4>\n<p>Nach einigen Tagen Abwesenheit wurde ich leider mit einigen Problemen an meinem Raspberry- Smarthomeserver konfrontiert.<\/p>\n<p>Unter anderem war der Mosquitto MQTT- Server, der Meldungen der verschiedenen iot- Devices entgegennehmen und verarbeiten soll, nicht verf\u00fcgbar.<\/p>\n<h4 style=\"text-align: center;\"><span style=\"text-decoration: underline;\">Analyse<\/span><\/h4>\n<p>Nach Analyse der Prozess\u00fcbersicht mit<\/p>\n<p style=\"text-align: center;\"><em>ps -A | grep mosq<\/em><\/p>\n<p>wurde leider keine Ausgabe dargestellt, d.h. der prozess war offenschtlich nicht gestartet.<\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2019\/12\/16\/mqtt-server-mosquitto-on-raspberry-smarthome-server-does-not-start\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/31\/rfid-tutorial-on-integrating-rfid-in-nodered-environment-using-ibm-bluemix-technology\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"RFID_Tutorial_zur_Integration_von_RFID_in_die_NodeRED-Umgebung_mithilfe_der_IBM_BlueMIX-Technologie\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/31\/rfid-tutorial-on-integrating-rfid-in-nodered-environment-using-ibm-bluemix-technology\/\">RFID: Tutorial zur Integration von RFID in die NodeRED-Umgebung mithilfe der IBM BlueMIX-Technologie<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p>Das verlinkte Tutorial gibt einen kurzen \u00dcberblick \u00fcber alle Schritte, die notwendig sind, um einen RC522 RFID Reader \u00fcber Raspberry PI in die NodeRED-Umgebung mit IBM Bluemix-Diensten, watson IOT und Nodes zu integrieren.<\/p>\n<p>Sehr interessant und ganz einfach zu machen:<\/p>\n<p><a href=\"https:\/\/developer.ibm.com\/recipes\/tutorials\/reading-rfid-mifare-cards-into-watson-iot-platform-using-your-raspberry-pi-3\/\">https:\/\/developer.ibm.com\/recipes\/tutorials\/reading-rfid-mifare-cards-into-watson-iot-platform-using-your-raspberry-pi-3\/<\/a><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/31\/rfid-tutorial-on-integrating-rfid-in-nodered-environment-using-ibm-bluemix-technology\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/31\/rfid-tags-read-write-with-raspberry-pi-and-rc522-mifare-rfid-reader\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"RFID_Lese-_Schreibgeraet_installieren_und_betreiben_mit_RC522_MIFARE_RFID_Device\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/31\/rfid-tags-read-write-with-raspberry-pi-and-rc522-mifare-rfid-reader\/\">RFID Lese- \/ Schreibger\u00e4t installieren und betreiben mit RC522 MIFARE RFID Device<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p>Sehr interessantes Tutorial f\u00fcr alle interessierten, die dar\u00fcber nachdenken eine RFID- Station zu installieren. Damit k\u00f6nnen verschiedene Dinge realisiert werden, zB RFID-T\u00fcr\u00f6ffner, Zugangskontrolle f\u00fcr Wohnungen, Technische EInrichtungen etc.<\/p>\n<p>Die Investitionskosten sind hier f\u00fcr den Ersteinstieg wirklich sehr \u00fcberschaubar und wenn man Spa\u00df am experimentieren und t\u00fcfteln hat, bietet das tutorial einen guten Einstieg in die Materie.<\/p>\n<p>Hier der Link:<\/p>\n<p><a href=\"https:\/\/tutorials-raspberrypi.de\/raspberry-pi-rfid-rc522-tueroeffner-nfc\/\">https:\/\/tutorials-raspberrypi.de\/raspberry-pi-rfid-rc522-tueroeffner-nfc\/<\/a><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/31\/rfid-tags-read-write-with-raspberry-pi-and-rc522-mifare-rfid-reader\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/31\/rfid-arduino-talks-rfid-very-useful-instruction-german-only\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"RFID_Arduino_spricht_RFID_sehr_nuetzliche_Anleitung\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/31\/rfid-arduino-talks-rfid-very-useful-instruction-german-only\/\">RFID: Arduino spricht RFID, sehr n\u00fctzliche Anleitung !<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p>Nachstehend der LInk:<\/p>\n<p><a href=\"https:\/\/www.heise.de\/developer\/artikel\/Arduino-spricht-RFID-3464780.html\">https:\/\/www.heise.de\/developer\/artikel\/Arduino-spricht-RFID-3464780.html<\/a><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/31\/rfid-arduino-talks-rfid-very-useful-instruction-german-only\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/nodemcu-link-to-nodemcu-documentation\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"Nodemcu_Link_to_NodeMCU_Documentation\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/nodemcu-link-to-nodemcu-documentation\/\">Nodemcu: Link to NodeMCU Documentation<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p><a href=\"https:\/\/nodemcu.readthedocs.io\">https:\/\/nodemcu.readthedocs.io<\/a><\/p>\n<p><img src=\"https:\/\/ways4.eu\/wp-content\/uploads\/2018\/01\/20180125_102619-819814246.jpg\" width=\"3000\" height=\"1688\" class=\"alignnone wp-image-1088 size-full\"><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/nodemcu-link-to-nodemcu-documentation\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/mqtt-public-mqtt-broker\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"MQTT_Public_MQTT_Broker\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/mqtt-public-mqtt-broker\/\">MQTT: Public MQTT Broker<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p>MQTT Connection settings for public broker HiveMQ:<\/p>\n<p><img src=\"https:\/\/ways4.eu\/wp-content\/uploads\/2018\/01\/20180125_101717-420704862.jpg\" width=\"3000\" height=\"1688\" class=\"alignnone wp-image-1086 size-full\"><\/p>\n<p>Webpage: <a href=\"https:\/\/www.mqtt-dashboard.com\">www.mqtt-dashboard.com<\/a><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/mqtt-public-mqtt-broker\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/arduino-kommunikation-uber-mqtt\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"Arduino_Kommunikation_ueber_MQTT\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/arduino-kommunikation-uber-mqtt\/\">Arduino: Kommunikation \u00fcber MQTT<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p><a href=\"https:\/\/m.heise.de\/developer\/artikel\/Kommunikation-ueber-MQTT-3238975.html\">https:\/\/m.heise.de\/developer\/artikel\/Kommunikation-ueber-MQTT-3238975.html<\/a><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/arduino-kommunikation-uber-mqtt\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/arduino-anwendung-mit-servomotoren\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"Arduino_Anwendung_mit_Servomotoren\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/arduino-anwendung-mit-servomotoren\/\">Arduino: Anwendung mit Servomotoren<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p><a href=\"https:\/\/m.heise.de\/developer\/artikel\/Anwendungen-mit-Servo-Motoren-3226402.html\">https:\/\/m.heise.de\/developer\/artikel\/Anwendungen-mit-Servo-Motoren-3226402.html<\/a><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2018\/01\/25\/arduino-anwendung-mit-servomotoren\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/linux-commands-ssh-tunneling-remote-server-to-localhost\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"Linux-commands_ssh_tunneling_remote_server_to_localhost\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/linux-commands-ssh-tunneling-remote-server-to-localhost\/\">Linux-commands:  ssh tunneling remote server to localhost<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p>To start a ssh tunnel from some machine ports 80 to your localhost port 2001 use the following syntax:<\/p>\n<p><strong>ssh -N -L 2001:localhost:80&nbsp; somemachine<\/strong><\/p>\n<p><span class=\"post_sig\">Enjoy !<\/span><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/linux-commands-ssh-tunneling-remote-server-to-localhost\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/linux-commands-rapidly-invoke-editor-to-type-long-and-complex-command\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"Linux-Commands_Rapidly_invoke_editor_to_type_long_and_complex_command\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/linux-commands-rapidly-invoke-editor-to-type-long-and-complex-command\/\">Linux-Commands: Rapidly invoke editor to type long and complex command<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p>To type a long and complex command from linux command line can be painful.&nbsp; Helpful might be to invoke an editor for writing the details.&nbsp; You can easily invoke an editor by using the following command:<\/p>\n<p><strong>ctrl-x e<\/strong><\/p>\n<p><span class=\"post_sig\">Enjoy !<\/span><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/linux-commands-rapidly-invoke-editor-to-type-long-and-complex-command\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/linux-command-run-the-last-command-as-root\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"Linux_Command_Run_the_last_command_as_root\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/linux-command-run-the-last-command-as-root\/\">Linux Command: Run the last command as root<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p>To run the last command as root you simply can use this command:<\/p>\n<p><strong>sudo !!<\/strong><\/p>\n<p><span class=\"post_sig\">Enjoy !<\/span><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/linux-command-run-the-last-command-as-root\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/awk-in-linux\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"AWK_in_Linux\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/awk-in-linux\/\">AWK in Linux<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p>awk Linux Kommando<\/p>\n<p>Was ist die Bedeutung des Linux\u00a0awk Kommandos ?<\/p>\n<p>Erl\u00e4uterung:<\/p>\n<p>awk KOMMANDO : awk wird zur Textmanipulation benutzt. Dieses Kommando pr\u00fcft jede zeile einer Datei auf das Vorhandensein des als Parameter \u00fcbergebenen Musters.<\/p>\n<p>SYNTAX: Die Syntax lautet<br \/>\nawk '{pattern + action}' {filenames}<\/p>\n<p>OPTIONS:<\/p>\n<p>-W version Display version information and exit.<br \/>\n-F Print help message and exit.<\/p>\n<p>Beispiel: ausgehend von einer Datei file1.txt, die folgenden Inhalt hat:<\/p>\n<p>Data in file1.txt:<\/p>\n<p>141516<\/p>\n<p>151511<\/p>\n<p>5566<\/p>\n<p>5251<\/p>\n<p>Um die zweite Spalte Daten in file1.txt auszugeben lautet das Kommando:<\/p>\n<p>awk '{print $2}' file1.txt<\/p>\n<p>Die Ausgabe wird dann wie folgt aussehen:<\/p>\n<p>15155625<\/p>\n<p>Um Spalte 1 und Spalte 2 zu multiplizieren und anschlie\u00dfend in Datei file2.txt zu schreiben lautet das Kommando:<\/p>\n<p>awk '{print $1,$2,$1*$2}' file1.txt &gt; file2.txt<\/p>\n<p>Kommando Erl\u00e4uterung:<br \/>\n$1: Ausgabe erste Spalte<br \/>\n$2: Ausgabe zweite Spalte<br \/>\n$1*$2: Multiplizieren $1 x $2<br \/>\nfile1.txt: input file<br \/>\nsymbolfile2.txt: output file<\/p>\n<p>Das Ergebnis wird dann wie folgt aussehen:<br \/>\n14 15 21015 15 2255 56 2805 25 125<\/p>\n<p><span class=\"post_sig\">Enjoy !<\/span><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/awk-in-linux\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/alias-command-in-linux\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"Alias-Command_in_Linux\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/alias-command-in-linux\/\">Alias-Command in Linux<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p>alias COMMAND:alias command allows you to create a shortcut to a command. As the name indicates, you can set alias\/shortcut name for the commands\/paths which is too longer to remember.<\/p>\n<p>SYNTAX:The Syntax is\u00a0<br \/>\nalias [options] [ AliasName [ =String ] ]<\/p>\n<p>OPTIONS:<\/p>\n<p>-a Removes all alias definitions from the current shell execution environment.<br \/>\n-p Prints the list of aliases in the form alias name=value on standard output.<\/p>\n<p>EXAMPLE:To create a shortcut temporarily:<\/p>\n<p>alias lhost='cd \/var\/www\/html'<\/p>\n<p>This command will set lhost to cd \/var\/www\/html\/.<\/p>\n<p>Now if you type lhost it will take you to the specified folder\/directory.<\/p>\n<p>To create a shortcut Permanently:<br \/>\nYou can put your aliases into the \/home\/user\/.bashrc file. It is good to add them at the end of the file.<\/p>\n<p>alias home='cd \/var\/www\/html\/hscripts\/linux-commands'<\/p>\n<p>Now if you type home it will take you to the specified folder\/directory.<\/p>\n<p>To create a shortcut for a command:<\/p>\n<p>alias c='clear'<\/p>\n<p>This command will set c to clear.<br \/>\nNow if you type c it will clear the screen.<\/p>\n<p><span class=\"post_sig\">Enjoy !<\/span><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/alias-command-in-linux\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><a class=\"post-thumb alignleft\" style=\"float:left; margin-right:15px; clear:both;\" href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/a-nice-app\/ \"><\/a><div class=\"add_posts_content\" style=\"clear:both;\"><h2 class=\"title\" style=\"clear: none;\"><span class=\"ez-toc-section\" id=\"A_nice_app\"><\/span><a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/a-nice-app\/\">A nice app<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"post-content\" style=\"clear:both\";><p>Hi,<br \/>\nI am using \"Guide To Linux\". Click this link to get it.<br \/>\nhttps:\/\/play.google.com\/store\/apps\/details?id=com.essence.linuxcommands<\/p>\n<p><span class=\"post_sig\">Enjoy !<\/span><\/p>\n <a href=\"https:\/\/ways4.eu\/de\/blog\/2016\/03\/01\/a-nice-app\/\" class=\"readmore\">Hier geht's weiter<\/a><\/div><hr style=\"margin:10px 0\"><\/div><\/div><div style=\"clear: both;\"><\/div><\/p>\n<div style='text-align:left' class='yasr-auto-insert-overall'><\/div><div style='text-align:left' class='yasr-auto-insert-visitor'><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":39,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_oct_exclude_from_cache":false,"_mi_skip_tracking":false,"yasr_overall_rating":0,"yasr_post_is_review":"","yasr_auto_insert_disabled":"","yasr_review_type":"Product"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Linux &amp; 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