- Print a text message:printf ["%s\n"] ["Hello world"]- Print an integer in bold blue:printf ["\e[1;34m%.3d\e[0m\n"] - Print a float number with the unicode Euro sign:printf ["\u20AC %.2f\n"] [123.4]- Print a text message composed with environment variables:printf ["var1: %s\tvar2: %s\n"] ["$VAR1"] ["$VAR2"]- Store a formatted message in a variable (does not work on zsh):printf -v [myvar] ["This is %s = %d\n" "a year" 2016]
printf ,FORMAT /[,ARGUMENT/]... printf ,OPTION/
Print ARGUMENT(s) according to FORMAT, or execute according to OPTION:
FORMAT controls the output as in C printf. Interpreted sequences are:
and all C format specifications ending with one of diouxXfeEgGcs, with ARGUMENTs converted to proper type first. Variable widths are handled.
NOTE: your shell may have its own version of printf, which usually supersedes the version described here. Please refer to your shell's documentation for details about the options it supports.
Written by David MacKenzie.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report printf translation bugs to <http://translationproject.org/team/>
Copyright © 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://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.
Full documentation at: <http://www.gnu.org/software/coreutils/printf> or available locally via: info '(coreutils) printf invocation'