The next program we'll look at is the
cut command. This program
cuts out columns or fields of input data. For example, we can tell it
to print just the login name and full name from the `/etc/passwd
file'. The `/etc/passwd' file has seven fields, separated by
arnold:xyzzy:2076:10:Arnold D. Robbins:/home/arnold:/bin/ksh
To get the first and fifth fields, we would use cut like this:
$ cut -d: -f1,5 /etc/passwd root:Operator ... arnold:Arnold D. Robbins miriam:Miriam A. Robbins ...
With the `-c' option,
cut will cut out specific characters
(i.e., columns) in the input lines. This command looks like it might be
useful for data filtering.
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