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

    NAME

    comm - select or reject lines common to two files
     
    

    SYNOPSIS

    comm [-123] file1 file2
    

     

    DESCRIPTION

    The comm utility reads file1 and file2, which must be ordered in the current collating sequence, and produces three text columns as output: lines only in file1; lines only in file2; and lines in both files.

    If the input files were ordered according to the collating sequence of the current locale, the lines written will be in the collating sequence of the original lines. If not, the results are unspecified.  

    OPTIONS

    The following options are supported:

    -1

    Suppresses the output column of lines unique to file1.

    -2

    Suppresses the output column of lines unique to file2.

    -3

    Suppresses the output column of lines duplicated in file1 and file2.

     

    OPERANDS

    The following operands are supported:

    file1

    A path name of the first file to be compared. If file1 is -, the standard input is used.

    file2

    A path name of the second file to be compared. If file2 is -, the standard input is used.

     

    USAGE

    See largefile(5) for the description of the behavior of comm when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).  

    EXAMPLES

    Example 1 Printing a list of utilities specified by files

    If file1, file2, and file3 each contain a sorted list of utilities, the command

    example% comm -23 file1 file2  | comm -23 - file3 
    

    prints a list of utilities in file1 not specified by either of the other files. The entry:

    example% comm -12 file1 file2 | comm -12 - file3
    

    prints a list of utilities specified by all three files. And the entry:

    example% comm -12  file2 file3 | comm -23 -file1
    

    prints a list of utilities specified by both file2 and file3, but not specified in file1.

     

    ENVIRONMENT VARIABLES

    See environ(5) for descriptions of the following environment variables that affect the execution of comm: LANG, LC_ALL, LC_COLLATE, LC_CTYPE, LC_MESSAGES, and NLSPATH.  

    EXIT STATUS

    The following exit values are returned:

    0

    All input files were successfully output as specified.

    >0

    An error occurred.

     

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    AvailabilitySUNWesu

    CSI

    Interface Stability

     

    SEE ALSO

    cmp(1), diff(1), sort(1), uniq(1), attributes(5), environ(5), largefile(5), standards(5)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPTIONS
    OPERANDS
    USAGE
    EXAMPLES
    ENVIRONMENT VARIABLES
    EXIT STATUS
    ATTRIBUTES
    SEE ALSO


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