compression archiver
static char *usage =
"ar -- compression archiver -- written by Haruhiko Okumura\n"
" PC-VAN:SCIENCE CompuServe:74050,1022\n"
" NIFTY-Serve:PAF01022 INTERNET:74050.1022@compuserve.com\n"
"Usage: ar command archive [file ...]\n"
"Commands:\n"
" a: Add files to archive (replace if present)\n"
" x: Extract files from archive\n"
" r: Replace files in archive\n"
" d: Delete files from archive\n"
" p: Print files on standard output\n"
" l: List contents of archive\n"
"If no files are named, all files in archive are processed,\n"
" except for commands 'a' and 'd'.\n"
"You may copy, distribute, and rewrite this program freely.\n";