Alphabetical Index of Manual Pages - U

ul (1) - do underlining
ulimit (2) - undocumented system calls
umask (2) - set file creation mask
umount (2) - mount and unmount filesystems.
umount (8) - mount and dismount file systems
umssync (8) - Synchronise Umsdos directory structure with MsDOS
uname (1) - print system information
uname (2) - get name and information about current kernel
undocumented (2)
unedit (1) - removes all traces that a file was checked out for editing
unexpand (1) - convert spaces to tabs
ungetc (3) - input of characters and strings
unimplemented (2)
uniq (1) - remove duplicate lines from a sorted file
unknown (n) - Handle attempts to use non-existent commands
unlink (2) - delete a name and possibly the file it refers to
unset (n) - Delete variables
unsetenv (3)
unshar (1) - unpack a shar file
unzip (1) - list, test and extract compressed files in a ZIP archive
unzipsfx (1) - self-extracting stub for prepending to ZIP archives
update (n) - Process pending events and idle callbacks
updatedb (1) - update a file name database
uplevel (n) - Execute a script in a different stack frame
uptime (1) - Tell how long the system has been running.
UpVar (3)
upvar (n) - Create link to variable in a different stack frame
uselib (2) - select shared library
users (1) - print the user names of users currently logged in to the current host
usleep (3) - suspend execution for interval of microseconds
ustat (2) - get file system statistics
Utils (n) - Utility commands in Tix 4.0.
utime (2) - change access and/or modification times of an inode
utimes (2) - change access and/or modification times of an inode
utmp (5) - login records
uudecode (1)
uuencode (1) - decode a file created by uuencode
uuencode (5) - format of an encoded uuencode file