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cut
Command
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
colons:
arnold:xyzzy:2076:10:Arnold D. Robbins:/home/arnold:/bin/bash |
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.