command

The “echo” command in Unix is often used in the shell script for displaying/printing messages on the terminal.There are two uses of the “echo” command. 1. echo to print messages on the terminal. Echo with options -n: This option prevents the trailing newline character from being printed. It is useful when you want to display … Read more

The linux date command is used to display and set the date of the system.To see the current date type the command “ date” on the terminal as shown the below

output

Linux date Format Linux date format is as below %Y: 4-digit year (e.g., 2023) %y: 2-digit year (e.g., 23) %m: 2-digit … Read more

Command cd stands for Change Directory. You can change directory or move from one directory to another directory by using cd command. Syntax:

Example: pwd command display the absolute path name of current directory. To see the current directory absolute path press pwd command on terminal.

We are currently in “ it ’ … Read more

“mv” command is used to moves a group of file to a another/different directory. “mv” command can also use to rename file and directory. This command does not create a new copy of file , it only rename it. When we rename it does not consume any additional space on the disk. Syntax:

Example … Read more

Linux and Unix tail command is one of the important command. Command tail displays the bottom/end of the file at the terminal. When “tail” command is used without any option it will display the bottom/end ten lines of the file. Syntax of tail Command in Unix and Linux Syntax:

Example of tail Command in … Read more

Command head displays the beginning/top of the file at the terminal. When “head” command is used without any option it will display the beginning/top ten lines of the file. Syntax:

Example: Suppose we have a file Employee.txt as shown below and we want to see the beginning/top of this file by default it will … Read more

ls command list all the file and directory name present in the current directory. Syntax:

Example: Print the name of all the directory and file available in the current directory.

Above command display four file and directory name. Check availability of file or directory: We can check whether a particular file or directory … Read more

rmdir stands for remove directory. In the UNIX file system, we can remove directory by using rmdir command. Syntax:

Note: In above syntax in the place of [directory name] we will specify the name of the directory to be removed. Example:

The directory abc is removed. To confirm directory is created press “ls” … Read more