When you execute a command in Linux, it generates a numeric return code. This happens whether you're running the command directly from the shell, from a script, or even from anAnsibleplaybook. You can use those return codes to handle the result of that command properly. What the return co...
If you do not specify a user using the -u or --user option, the command will run as the invoking user. Below is an example of specifying a group to use instead of the regular user’s primary group. By using ls -l, we can see the owner and group of our directory are the invokin...
The ip command can also be used to show the statistics of the various network interfaces. To do this you can use the ip command with the option -s and then specify the network device. $ ip -s link When you need to get information about a particular network interface, add the optionls...
6.Hardware Issues: If your hard drive is failing, it can slow down the ls command. You might need to use a tool like smartctl to check the health of your hard drive. You might need to replace it. Always backup important data if you suspect a hardware failure. ...
However, each line is run by a separate shell, so this variable will not survive to the next line, so you must then use it immediately: FILES="$(shell ls)";echo$$FILES This is all a bit silly since the shell will expand*(and other shell glob expressions) for you in the first pla...
Running a Command as Another User You can also usesudoto run a command as another user using the-uoption followed by the username. For example, to list files as the userravi: sudo -u ravi ls -l /home/ravi Running Command as Another User ...
How to Use the chmod Command on Linux: The ‘chmod’command on Linux is used to change the permissions of files or directories. It is a powerful command that can modify permissions for the owner, group, and others. Here are the basic steps to use the ‘chmod’command: ...
#My custom aliasesalias home=”ssh -i ~/.ssh/mykep.pem tecmint@192.168.0.100”alias ll="ls -alF" Save the file. The file will be automatically loaded in your next session. If you want to use the newly defined alias in the current session, issue the following command: ...
Getting detailed information related to files on your storage is tricky if you do not know how to use the ls command. Here we'll discuss everything associated with the ls command on Linux, along with some various flags used with it. The ls Command on Linux The ls command is used to li...
How to Remove Aliases To remove an alias, use theunaliascommand: unalias alias-name For example, to remove theupdatetemporary alias fromabove, enter: unalias update To remove all aliases: unalias -a Note Removing all aliases also removes the system default aliases. ...