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| U |
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| | u370 -- get processor type truth value (  ) |
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| | u3b -- get processor type truth value ( ) |
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| | u3b2 -- get processor type truth value ( ) |
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| | u3b5 -- get processor type truth value ( ) |
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| | u3b15 -- get processor type truth value ( ) |
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| | ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices ( ) |
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| | ul - underline text ( ) |
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| | ulimit -- set or get limitations on the system resources available to the current shell and its descendents ( ) |
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| | umask - shell built-in function to restrict read/write/execute permissions ( ) |
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| | unalias -- shell built-in functions to create your own pseudonym or shorthand for a command or series of commands ( ) |
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| | uname - print name of current system ( ) |
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| | unbind the reference from an FNS name - fnunbind ( ) |
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| | uncompress -- uncompress files ( ) |
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| | underline text - ul ( ) |
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| | unexpand -- unexpand SPACE characters to TAB characters ( ) |
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| | unhash -- shell built-in functions to evaluate the internal hash table of the contents of directories ( ) |
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| | unifdef - resolve and remove ifdef'ed lines from C program source ( ) |
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| | uniq - report or filter out repeated lines in a file ( ) |
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| | units - converts quantities expressed in standard scales to other scales ( ) |
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| | UNIX, convert text file from DOS format to ISO format - dos2unix ( ) |
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| | unix2dos - convert text file from ISO format to DOS format ( ) |
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| | UNIX-to-UNIX commands |
| | | uucp -- uucp ( ) |
| | | uulog -- uucp ( ) |
| | | uuname -- uucp ( ) |
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| | unlimit -- set or get limitations on the system resources available to the current shell and its descendents ( ) |
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| | unpack -- expand compressed files ( ) |
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| | unset -- shell built-in functions to determine the characteristics for environmental variables of the current shell and its descendents ( ) |
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| | unsetenv -- shell built-in functions to determine the characteristics for environmental variables of the current shell and its descendents ( ) |
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| | until -- shell built-in functions to repetitively execute a set of actions while/until conditions are evaluated TRUE ( ) |
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| | update and examine attributes associated with FNS named object - fnattr ( ) |
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| | update groups of programs - sysV-make ( ) |
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| | update last modified date of file - touch ( ) |
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| | update programs - make ( ) |
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| | uptime - show how long the system has been up ( ) |
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| | user ID, change user IDs of files - chown ( ) |
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| | user IDs |
| | | display a list of all valid user names - dispuid ( ) |
| | | prompts for user ID -- ckuid ( ) |
| | | provides error message for user ID -- erruid ( ) |
| | | provides help message for user ID -- helpuid ( ) |
| | | validates user ID -- valuid ( ) |
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| | users |
| | | display effective name - whoami ( ) |
| | | display group membership - groups ( ) |
| | | display information about local and remote users - finger ( ) |
| | | get the name of the user running the process - logname ( ) |
| | | list user login information - listusers ( ) |
| | | talk to another user - talk ( ) |
| | | who is logged in, and what are they doing - w ( ) |
| | | who is logged in on local machines - rwho ( ) |
| | | who is logged in on remote machines - rusers ( ) |
| | | who is on the system - who ( ) |
| | | write to another user - write ( ) |
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| | users, network, Internet user name directory service - whois ( ) |
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| | users - display users on system ( ) |
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| | uucp -- UNIX-to-UNIX copy ( ) |
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| | uucp |
| | | log -- uulog ( ) |
| | | uucp status inquiry - uustat ( ) |
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| | uudecode -- decode binary file ( ) |
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| | uuencode -- encode binary file ( ) |
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| | uuglist - print list of service grades available ( ) |
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| | uulog -- UUCP log ( ) |
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| | uuname -- UUCP list of names ( ) |
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| | uustat - uucp status inquiry ( ) |
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| | uux - system to system command execution ( ) |
