tail Linux Commands
What is Linux tail Command?
Explanation
tail COMMAND:tail command is used to display the last or bottom part of the file. By default it displays last 10 lines of a file.SYNTAX :
tail [options] filenameOPTIONS:
-l
To specify the units of lines.
-b
To specify the units of blocks.
-n
To specify how many lines you want to display.
-c number
The number option-argument must be a decimal integer whose sign affects the location in the file, measured in bytes.
-n number
The number option-argument must be a decimal integer whose sign affects the location in the file, measured in lines.
EXAMPLE:
-
tail index.php
It displays the last 10 lines of 'index.php'.
-
tail -2 index.php
It displays the last 2 lines of 'index.php'.
-
tail -n 5 index.php
It displays the last 5 lines of 'index.php'.
-
tail -c 5 index.php
It displays the last 5 characters of 'index.php'.
tail [options] filename
OPTIONS:
-l
To specify the units of lines.
-b
To specify the units of blocks.
-n
To specify how many lines you want to display.
-c number
The number option-argument must be a decimal integer whose sign affects the location in the file, measured in bytes.
-n number
The number option-argument must be a decimal integer whose sign affects the location in the file, measured in lines.
EXAMPLE:
-
tail index.php
It displays the last 10 lines of 'index.php'.
-
tail -2 index.php
It displays the last 2 lines of 'index.php'.
-
tail -n 5 index.php
It displays the last 5 lines of 'index.php'.
-
tail -c 5 index.php
It displays the last 5 characters of 'index.php'.
| -l | To specify the units of lines. |
| -b | To specify the units of blocks. |
| -n | To specify how many lines you want to display. |
| -c number | The number option-argument must be a decimal integer whose sign affects the location in the file, measured in bytes. |
| -n number | The number option-argument must be a decimal integer whose sign affects the location in the file, measured in lines. |
-
tail index.php
It displays the last 10 lines of 'index.php'. -
tail -2 index.php
It displays the last 2 lines of 'index.php'. -
tail -n 5 index.php
It displays the last 5 lines of 'index.php'. -
tail -c 5 index.php
It displays the last 5 characters of 'index.php'.
