By default history command will display output as follows: $ history NOTE: When we use history command it won’t display what time the commands were executed from the bash history. To solve this problem create a shell variable called HISTTIMEFORMAT. How to see time stamps in bash history Defi...
The top command provides a quick look at system resources and processes. You can also control it to use it as the task manager in Linux terminal. Linux HandbookChristopher Murray sar command This command allows you to not only monitor CPU usage in intervals but also save this system activity ...
Similarly, the ps -C process_name command filters processes by name, displaying all instances of that process and any child processes it has spawned.If you are a Hostinger user, you can also ask the Kodee AI assistant to check all the processes in your VPS. Ask it, “List all processes...
On the internet, you will find plenty of tools forchecking disk space usagein Linux. However, Linux has a strong built-in utility called ‘df‘. The ‘df‘ command stands for “disk filesystem“, it is used to get a full summary of available and used disk space usage of the file sys...
To create a cron job, we can execute crontab -e and add one line in this format:<Cron_Expression> Full_Path_CommandCopyLet’s say we want our script to be executed every minute. So, we add this line in the crontab:* * * * * /home/kent/cronTest/myJob.sh Copy...
In Linux, you canallow specific commands to be executed without entering the sudo passwordby configuring thesudoersfile appropriately. The sudoers file determines which users can run certain commands with administrative privileges (usingsudo) and whether they need to provide a password for those command...
1. How to Copy a File in Linux One of the basic use of thedd commandis to copy a file into a current directory. Let’s understand by creating a simple text file: $ echo "this is a sample text file" > file-1.txt Now, let’s create a copy of it using thedd command: ...
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 scri...
You can use the-doption with the du command in Linux to print sizes until a given level. Enter the level number to view the files in that appropriate level. In simple words, the -d parameter, specify the depth of how deep should the command check for files. ...
The shell passes the results of the substitutions to the command. 在运行命令之前,shell会查找变量、通配符和其他替换,并执行替换(如果有的话)。 shell将替换的结果传递给命令。 Problems involving literals can be subtle. Let’s say you’re looking for all entries in /etc/passwd that match the regula...