man pages section 1: User Commands
U
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u370(1)- get processor type truth value
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u3b(1)- get processor type truth value
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u3b15(1)- get processor type truth value
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u3b2(1)- get processor type truth value
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u3b5(1)- get processor type truth value
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ucblinks(1B)- adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices
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ul(1)- do underlining
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ulimit(1)- set or get limitations on the system resources available to the current shell and its descendents
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umask(1)- get or set the file mode creation mask
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unalias(1)- create or remove a pseudonym or shorthand for a command or series of commands
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uname(1)- print name of current system
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uncompress(1)- compress, uncompress files or display expanded files
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unexpand(1)- expand TAB characters to SPACE characters, and vice versa
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unget(1)- undo a previous get of an SCCS file
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unhash(1)- evaluate the internal hash table of the contents of directories
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unifdef(1)- resolve and remove ifdef'ed lines from C program source
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uniq(1)- report or filter out repeated lines in a file
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units(1)- converts quantities expressed in standard scales to other scales
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unix2dos(1)- convert text file from ISO format to DOS format
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unlimit(1)- set or get limitations on the system resources available to the current shell and its descendents
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unpack(1)- compress and expand files
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unset(1)- shell built-in functions to determine the characteristics
for environmental variables of the current shell and its descendents
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unset(1F)- set and unset local or global environment variables
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unsetenv(1)- shell built-in functions to determine the characteristics
for environmental variables of the current shell and its descendents
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until(1)- shell built-in functions to repetitively execute a set of actions while/until conditions are evaluated TRUE
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uptime(1)- show how long the system has been up
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users(1B)- display a compact list of users logged in
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uucp(1C)- UNIX-to-UNIX system copy
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uudecode(1C)- encode a binary file, or decode its encoded representation
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uuencode(1C)- encode a binary file, or decode its encoded representation
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uuglist(1C)- print the list of service grades that are available on this UNIX system
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uulog(1C)- UNIX-to-UNIX system copy
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uuname(1C)- UNIX-to-UNIX system copy
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uupick(1C)- public UNIX-to-UNIX system file copy
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uustat(1C)- uucp status inquiry and job control
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uuto(1C)- public UNIX-to-UNIX system file copy
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uux(1C)- UNIX-to-UNIX system command execution
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