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Интерактивная система просмотра системных руководств (man-ов)

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look (1)
  • look (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • >> look (1) ( FreeBSD man: Команды и прикладные программы пользовательского уровня )
  • look (1) ( Linux man: Команды и прикладные программы пользовательского уровня )

  • BSD mandoc
     

    NAME

    
    
    look
    
     - display lines beginning with a given string
    
     
    

    SYNOPSIS

    [-df ] [-t termchar ] string [file ... ]  

    DESCRIPTION

    The utility displays any lines in file which contain string as a prefix. As performs a binary search, the lines in file must be sorted.

    If file is not specified, the file /usr/share/dict/words is used, only alphanumeric characters are compared and the case of alphabetic characters is ignored.

    The following options are available:

    -d
    Dictionary character set and order, i.e., only alphanumeric characters are compared.
    -f
    Ignore the case of alphabetic characters.
    -t
    Specify a string termination character, i.e., only the characters in string up to and including the first occurrence of termchar are compared.

     

    ENVIRONMENT

    The LANG , LC_ALL and LC_CTYPE environment variables affect the execution of the utility. Their effect is described in environ(7).  

    FILES

    /usr/share/dict/words
    the dictionary

     

    EXIT STATUS

    The utility exits 0 if one or more lines were found and displayed, 1 if no lines were found, and >1 if an error occurred.  

    COMPATIBILITY

    The original manual page stated that tabs and blank characters participated in comparisons when the -d option was specified. This was incorrect and the current man page matches the historic implementation.  

    SEE ALSO

    grep(1), sort(1)  

    HISTORY

    A utility appeared in AT&T System v7 .  

    BUGS

    Lines are not compared according to the current locale's collating order. Input files must be sorted with LC_COLLATE set to `C'


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    ENVIRONMENT
    FILES
    EXIT STATUS
    COMPATIBILITY
    SEE ALSO
    HISTORY
    BUGS


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