LEX (man1p)
lex — generate programs for lexical tasks (DEVELOPMENT)
lex — generate programs for lexical tasks (DEVELOPMENT)
sort — sort, merge, or sequence check text files
uuencode — encode a binary file
unget — undo a previous get of an SCCS file (DEVELOPMENT)
df — report free disk space
rmdir — remove directories
unalias — remove alias definitions
basename — return non-directory portion of a pathname
break — exit from for, while, or until loop
paste — merge corresponding or subsequent lines of files