comm(1) - osol9

1comm(1)                          User Commands                         comm(1)
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NAME

6       comm - select or reject lines common to two files
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SYNOPSIS

9       comm [-123] file1 file2
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DESCRIPTION

13       The  comm  utility  reads file1 and file2, which must be ordered in the
14       current collating sequence, and produces three text columns as  output:
15       lines only in file1; lines only in file2; and lines in both files.
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18       If  the input files were ordered according to the collating sequence of
19       the current locale, the lines written will be in the collating sequence
20       of the original lines. If not, the results are unspecified.
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OPTIONS

23       The following options are supported:
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25       -1    Suppresses the output column of lines unique to file1.
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28       -2    Suppresses the output column of lines unique to file2.
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31       -3    Suppresses  the  output  column  of lines duplicated in file1 and
32             file2.
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OPERANDS

36       The following operands are supported:
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38       file1    A path name of the first file to be compared. If file1  is  −,
39                the standard input is used.
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42       file2    A  path name of the second file to be compared. If file2 is −,
43                the standard input is used.
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USAGE

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

51       Example 1 Printing a list of utilities specified by files
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54       If file1, file2, and file3 each contain a sorted list of utilities, the
55       command
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58         example% comm -23 file1 file2  | comm -23 - file3
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63       prints a list of utilities in file1 not  specified  by  either  of  the
64       other files. The entry:
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67         example% comm -12 file1 file2 | comm -12 - file3
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72       prints a list of utilities specified by all three files. And the entry:
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75         example% comm -12  file2 file3 | comm -23 -file1
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80       prints  a  list of utilities specified by both file2 and file3, but not
81       specified in file1.
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ENVIRONMENT VARIABLES

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

90       The following exit values are returned:
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92       0     All input files were successfully output as specified.
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95       >0    An error occurred.
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ATTRIBUTES

99       See attributes(5) for descriptions of the following attributes:
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104       ┌─────────────────────────────┬─────────────────────────────┐
105       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
106       ├─────────────────────────────┼─────────────────────────────┤
107       │Availability                 │SUNWesu                      │
108       ├─────────────────────────────┼─────────────────────────────┤
109       │CSI                          │enabled                      │
110       ├─────────────────────────────┼─────────────────────────────┤
111       │Interface Stability          │Standard                     │
112       └─────────────────────────────┴─────────────────────────────┘
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