Linux and Unix sort command tutorial with examples

Command sort is used to display/arrange the content of the text file in ascending or descending order. By default, sort command sorts the entire lines. Syntax:

Example: Suppose we have a file Employee.txt as shown below and we want to sort the content of the file and display at the terminal. By default sort … Read more

Linux and Unix head command tutorial with examples

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

Linux and Unix tee command tutorial with examples

Command tee displays the output of the command and at the same time it saves this output in a file specified by the user. “tee” command can be used anywhere along with pipeline. Example: Suppose we have a file Data.txt as shown below and we want to see the content of this file and at … Read more

Linux and Unix rm command tutorial with examples

“rm” command is used to remove/delete files. this command can delete more than one file at a time. “rm” command can also delete the specific file from the directory. Syntax:

Example: Suppose we want to delete a file Mybook01 then the command is as follows:

Note: File ones delete can’t be regained. Delete … Read more

Linux and Unix cat command tutorial with examples

cat command is used to see the content of the file. cat command is also used to concatenate two or more file. cat command is also used to create new files. Syntax:

Suppose we have two files Employee.txt and Data.txt as shown below:

File 1: Employee.txt File 2: Data.txt Example: To see the … Read more

Linux and Unix ls command tutorial with examples

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

Linux and Unix cd command tutorial with examples

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

Linux and Unix rmdir command tutorial with examples

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

Linux and Unix mkdir command tutorial with examples

mkdir stands for make directory. In the UNIX file system, we can create a new directory by using mkdir command. Syntax:

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

The directory abc is created. To confirm directory is created press … Read more

Linux and Unix passwd command tutorial with examples

passwd command stands for the password. By using passwd command we can change the password of a user account in Unix system. Steps for change password. 1. Enter the command “passwd” on the terminal and press enter. 2. System asks for old Unix password then the user will enter old Unix password. 3. System asks … Read more