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| U |
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| | ualarm — schedule signal after interval in microseconds (  ) |
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| | ulltostr — string conversion routines ( ) |
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| | ungetc — push byte back into input stream ( ) |
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| | ungetwc — push wide-character code back into input stream ( ) |
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| | unlock a pseudo-terminal master/slave pair — unlockpt ( ) |
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| | unlock address space, — munlockall ( ) |
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| | unlock memory pages, — munlock ( ) |
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| | unlockpt — unlock a pseudo-terminal master/slave pair ( ) |
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| | updwtmp — user accounting database functions ( ) |
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| | updwtmpx — user accounting database functions ( ) |
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| | user accounting database functions — endutent ( ) |
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| | user accounting database functions — endutxent ( ) |
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| | user accounting database functions — getutent ( ) |
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| | user accounting database functions — getutid ( ) |
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| | user accounting database functions — getutline ( ) |
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| | user accounting database functions — getutmp ( ) |
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| | user accounting database functions — getutmpx ( ) |
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| | user accounting database functions — getutxent ( ) |
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| | user accounting database functions — getutxid ( ) |
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| | user accounting database functions — getutxline ( ) |
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| | user accounting database functions — pututline ( ) |
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| | user accounting database functions — pututxline ( ) |
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| | user accounting database functions — setutent ( ) |
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| | user accounting database functions — setutxent ( ) |
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| | user accounting database functions — updwtmp ( ) |
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| | user accounting database functions — updwtmpx ( ) |
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| | user accounting database functions — utmpname ( ) |
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| | user accounting database functions — utmpxname ( ) |
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| | user context |
| | | — makecontext ( ) |
| | | — swapcontext ( ) |
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| | user IDs, get character-string representation — cuserid ( ) |
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| | usleep — suspend execution for interval in microseconds ( ) |
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| | utmpname — user accounting database functions ( ) |
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| | utmpx file, find the slot of current user — ttyslot ( ) |
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| | utmpxname — user accounting database functions ( ) |
