linux head command
# SYNTAX
# head [options] [file_name(s)]
# OPTIONS
# -n | N, prints out the furst N lines of the file(s)
# -q, doesn't print out the file headers
# -v, always prints out the file headers
# EXAMPLE
head -n 7 file.txt
head -q -n 5 file1.txt file2.txt
# CREDIT
# https://www.freecodecamp.org/news/bash-commands-bash-ls-bash-head-bash-mv-and-bash-cat-explained-with-examples/