Linux colrm command - Remove columns from a file

Linux colrm command: Remove columns from a file

Linux colrm command Function Description

Use the colrm command to remove selected columns from the file to send to the standard output.

Linux colrm command Syntax

colrm [Start column [End column]]

Linux colrm command Example

Delete column 3 and the characters after it from the /root/apidemos.com.txt file, and output

colrm 3 < /root/apidemos.com.txt

Output:

Delete the third column of the character abcde and the characters after it, and then output

 [root@rhel～]#colrm 3
 abcde                                  // Enter the character abcde
 ab
 // Finally press the [Ctrl+d] key combination to exit

Delete the characters between columns 3 and 5 in the character abcdefghi, and then output

[root@rhel ～]# colrm 3 5
abcdefghi                               // Enter the characters abcdefghi
abfghi
// Finally press the [Ctrl+d] key combination to exit