1. To edit the source file, opentext_file.cin your text editor. 2. Modify the existing message in thetext_file.cfile. 3. After saving the changes, open the terminal and execute themakecommand. During the execution, the utility examines the modifications intext_file.cand proceeds to recompil...
Grep is a command line utility in Unix and Linux systems. It is used for finding a search patterns in the content of a given file. With its unusual name, you may have guessed that grep is an acronym. This is at least partially true, but it depends on who you ask. According to repu...
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An alias is a shortcut to a command. The alias definitions in a.bashrcfile are permanent and always available for use. Use aliases to create shortcuts for long commands or command combinations. Below are several practical examples: Search through command history for a specific word: alias hist...
What is the-f Command in Linux? Usually, you can use the f command option in different commands to get different results. Tar Command Let’s use the tar command with and without the -f option: tar-xsample.tar.gz As you can see in the previous image, the terminal is showing an error...
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What is the rm command in Linux? Therm(remove) command, which is part of GNU Coreutils, is used to delete old files and directories from your computer, but it can accidentally delete files you actually want to keep, so use caution when invoking the command from your shell. ...
Fixing “Target Packages is configured multiple times” Error in Ubuntu & Debian Based Linux Distributions Recently, when I was updating Ubuntu via command line, I encountered a warning that complained about target package being configured multiple times. The exact message after running sudo apt updat...
Once you refresh the bashrc file using the source command, your bash prompt will change like the image below. You can also change the limit of command history that is displayed when the UP arrow is pressed. To do so, change theHISTSIZEandHISTFILESIZEvariables in the bashrc file. ...
Thesos reportcommand is a tool that collects configuration details, system information and diagnostic information from a Red Hat Enterprise Linux system. For instance: the running kernel version, loaded modules, and system and service configuration files. The command also runs external programs to coll...