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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]
Most used options:
-f
, display the last lines and then monitor the file. If new lines are added to the file, tail updates the display.-c NUM
, display the lastNUM
bytes of the file.-n NUM
, display the lastNUM
lines, instead of the last 10
Example
To show the last 10 lines from file log.txt
tail 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:
- Wikipedia: https://en.wikipedia.org/wiki/Tail_(Unix)