| | | |
U |
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| ulimit -- get and set process limits ( ) |
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| umask -- set and get file creation mask ( ) |
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| umount -- unmount a file system ( ) |
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| uname -- get name of current operating system ( ) |
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| unlink -- remove directory entry ( ) |
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| unmount a file system -- umount ( ) |
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| user audit identity |
| | get user audit identity -- getauid ( ) |
| | set user audit identity -- setauid ( ) |
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| user ID, set real and effective -- setreuid() ( ) |
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| user IDs |
| | get -- getuid, geteuid ( ) |
| | set -- setuid ( ) |
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| utime -- set file access and modification times ( ) |
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| utimes -- set file access and modification times ( ) |