Bash tail


title: Bash Tail

## Bash Tail
tail is a program to display the tail end of a text file. If no option is given, tail shows the last 10 lines of a given file.

Usage

tail [options] [file_names]

Commonly used options:

  • -f – Display the last lines and then monitor the file. If new lines are added to the file, tail updates the display.
  • -F – Same as -f but if the file/log is rolled it will continue with the new file/log.
  • -c NUM – display the last NUM bytes of the file.
  • -n NUM – display the last NUM lines, instead of the last 10 Examples View the last several lines from file log.txt
tail log.txt

#### View the last 15 lines from file log.txt

tail -n 15 log.txt

Show only the last line from file log.txt

tail -n1 log.txt

#### Show live changes from file log.txt

tail -f log.txt

### More Information

  • Run man tail for more information on the tail command as well as a complete list of options.
  • Wikipedia

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