管道 Pipeline

[其他]代码库

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

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

The list option argument is a comma or whitespace separated set of numbers and/or number ranges.

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

-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.

-c list
             The list specifies character positions.

example:
cut -d : -f 1 /etc/passwd | sort

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