head flags & options

-n, --lines

Print the first N lines instead of the default 10.

head -n 20 file.txt

head -n -5 file.txt

-c, --bytes

Print the first N bytes of each file.

head -c 100 file.txt

head -c 1K file.txt

-q, --quiet

Never print headers giving file names.

head -q -n 5 file1.txt file2.txt

-v, --verbose

Always print headers giving file names.

head -v -n 5 file.txt