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trl, use_env, wunctrl – miscellaneous curses utility routines
USAGE
#include <curses.h>

char *unctrl(chtype c);
char *wunctrl(wchar_t w);
char *keyname(int c);
char *key_name(wchar_t w);
[...]

trl, use_env, wunctrl – miscellaneous curses utility routines
USAGE
#include <curses.h>

char *unctrl(chtype c);
char *wunctrl(wchar_t w);
char *keyname(int c);
char *key_name(wchar_t w);
[...]

compress, uncompress, zcat – compress and expand data (version 4.1)
USAGE
compress [ -f ] [ -v ] [ -c ] [ -V ] [ -r ] [ -b bits ] [ name ... ]
uncompress [ -f ] [ -v ] [ [...]

useradd – Create a new user or update default new user information
USAGE
useradd [-c comment] [-d home_dir]
[-e expire_date] [-f inactive_time]
[...]