This article is part of the on going Unix sed command tutorial series. In our previous articles we learned sed with single commands — printing, deletion, substitute and file write. Sed provides lot of commands to perform number of operations with the lines in a file. In this article let us review how to append, [...]
November 2009
Question: When I execute ping command from the command line, it keeps sending the packets until I hit CTRL-C to terminate the ping command output. How can I execute ping command only for N number of packets and terminate the output automatically? Answer: Use ping option -c to specify the number of packets. After sending [...]
Similar to Windows Task Manager, Ubuntu offers a system monitoring utility that will display running processes, memory usage, file system usage. Apart from monitoring, you can also take several actions from the system monitor user interface — such as killing a running process. In this article, let us review how to put the basic monitoring [...]
Before heading to Google to get help on a particular Unix command, try the following methods, which will give you a comprehensive help on Unix commands. 1. Using apropos to search man pages Use apropos to search man pages for available Unix commands on a specific functionality. $ apropos -r REGEXofUNIXCOMMAND or Description. About apropos [...]
This guide will help you to upgrade from Ubuntu 9.04 Jaunty Jackalope to 9.10 Karmic Koala. This tutorial has total of 13 steps with appropriate screen shots. Step 1. Check the Ubuntu Version before Upgrade How to check the current version of Ubuntu? You have the following three options: Option 1: Check the /etc/issue file [...]