CUT(1)                       General Commands Manual                      CUT(1)

     cut – cut out selected portions of each line of a file

     cut -b list [-n] [file ...]
     cut -c list [file ...]
     cut -f list [-w | -d delim] [-s] [file ...]

     The cut utility cuts out selected portions of each line (as specified by
     list) from each file and writes them to the standard output.  If no file
     arguments are specified, or a file argument is a single dash (‘-’), cut
     reads from the standard input.  The items specified by list can be in terms
     of column position or in terms of fields delimited by a special character.
     Column and field numbering start from 1.

     The list option argument is a comma or whitespace separated set of numbers
     and/or number ranges.  Number ranges consist of a number, a dash (‘-’), and
     a second number and select the columns or fields from the first number to
     the second, inclusive.  Numbers or number ranges may be preceded by a dash,
     which selects all columns or fields from 1 to the last number.  Numbers or
     number ranges may be followed by a dash, which selects all columns or
     fields from the last number to the end of the line.  Numbers and number
     ranges may be repeated, overlapping, and in any order.  If a field or
     column is specified multiple times, it will appear only once in the output.
     It is not an error to select columns or fields not present in the input

     The options are as follows:

     -b list
             The list specifies byte positions.

     -c list
             The list specifies character positions.

     -d delim
             Use delim as the field delimiter character instead of the tab

     -f list
             The list specifies fields, separated in the input by the field
             delimiter character (see the -d option).  Output fields are
             separated by a single occurrence of the field delimiter character.

     -n      Do not split multi-byte characters.  Characters will only be output
             if at least one byte is selected, and, after a prefix of zero or
             more unselected bytes, the rest of the bytes that form the
             character are selected.

     -s      Suppress lines with no field delimiter characters.  Unless
             specified, lines with no delimiters are passed through unmodified.

     -w      Use whitespace (spaces and tabs) as the delimiter.  Consecutive
             spaces and tabs count as one single field separator.

     The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of
     cut as described in environ(7).

     The cut utility exits 0 on success, and >0 if an error occurs.

     Extract users' login names and shells from the system passwd(5) file as
     “name:shell” pairs:

           cut -d : -f 1,7 /etc/passwd

     Show the names and login times of the currently logged in users:

           who | cut -c 1-16,26-38

     colrm(1), paste(1)

     The cut utility conforms to IEEE Std 1003.2-1992 (“POSIX.2”).

     The -w flag is an extension to the specification.

     A cut command appeared in AT&T System III UNIX.

macOS 12.1                       August 3, 2017                       macOS 12.1