output the first part of files
head [ OPTION ]...[ FILE ]...
Print the first 10 lines of each FILE to standard output. With more than one FILE, precede each with a header giving the file name.
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-c , --bytes = [ -]NUM print the first NUM bytes of each file; with the leading ' -', print all but the last NUM bytes of each file
-n , --lines = [ -]NUM print the first NUM lines instead of the first 10; with the leading ' -', print all but the last NUM lines of each file
-q , --quiet , --silent never print headers giving file names
-v , --verbose always print headers giving file names
-z , --zero -terminated line delimiter is NUL, not newline
--help display this help and exit
--version output version information and exit
NUM may have a multiplier suffix: b 512, kB 1000, K 1024, MB 1000*1000, M 1024*1024, GB 1000*1000*1000, G 1024*1024*1024, and so on for T, P, E, Z, Y. Binary prefixes can be used, too: KiB=K, MiB=M, and so on.
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
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Copyright 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
tail(1) Full documentation <https://www.gnu.org/software/coreutils/head> or available locally via: info head invocation
Written by David MacKenzie and Jim Meyering.