Name
head -- output the first part of files
Description
The specification for "head" is as specified in the SUS but with the
additional options as specified below.
Additional Options
- -c, --bytes=SIZE
- Print first SIZE bytes. SIZE may have a multiplier suffix: b for 512,
k for 1K, m for 1 Meg 
- --lines=NUMBER
- Equivalent to -n option 
- -q, --quiet, --silent
- Never print headers giving file names 
- -v
- Always print headers giving file names