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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

    look [-dfa ] [-t termchar ] string [file ]  

    DESCRIPTION

    The look utility displays any lines in file which contain string as a prefix. As look performs a binary search, the lines in file must be sorted (where sort(1) got the same options -d and/or -f that look is invoked with).

    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.

    Options:

    -d
    Dictionary character set and order, i.e. only alphanumeric characters are compared.
    -f
    Ignore the case of alphabetic characters.
    -a
    Use the alternate dictionary /usr/share/dict/web2
    -t
    Specify a string termination character, i.e. only the characters in string up to and including the first occurrence of termchar are compared.

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

    FILES

    /usr/share/dict/words
    the dictionary
    /usr/share/dict/web2
    the alternate dictionary

     

    SEE ALSO

    grep(1), sort(1)  

    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.  

    HISTORY

    Look appeared in Version 7 AT&T Unix.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    FILES
    SEE ALSO
    COMPATIBILITY
    HISTORY


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