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Table of Contents

ul(1) - do underlining

umask(1) - set or display the file mode creation mask

umodem(1) - XMODEM-protocol file transfer program

uname(1) - display information about computer system; set node name (system name)

unget(1) - undo a previous get of an SCCS file

unifdef(1) - remove preprocessor lines

uniq(1) - report repeated lines in a file

units(1) - conversion program

uptime(1) - show how long system has been up, and/or who is logged in and what they are doing

users(1) - compact list of users who are on the system

uucp(1) - UNIX system to UNIX system copy

uuencode(1) - encode/decode a binary file for transmission by mailer

uupath(1) - access and manage the pathalias database

uustat(1) - uucp status inquiry and job control

uuto(1) - public UNIX system to UNIX system file copy

uux(1) - UNIX system to UNIX system command execution