fields

Use the fields CLI command as a modern replacement for awk + cut. With fields you specify which columns of text you want, in a flexible format.

Getting Started

Build from source

The fields command can be installed via Go by running

$ go install github.com/shoenig/fields/cmd/fields@latest

Example Usages

select a single column (from left)

$ fields 3 <<< "a b c d e f g"
c

select a single column (from right)

$ fields -- -3 <<< "a b c d e f g"
e

select multiple columns

$ fields 1,-1,2,-2 <<< "a b c d e f g"
a g b f

select columns to the right of N (from left)

$ fields 4: <<< "a b c d e f g"
d e f g

select columns to the right of N (from right)

$ fields -- -2: <<< "a b c d e f g"
f g

select columns to the left of N (from left)

$ fields :2 <<< "a b c d e f g"
a b

select columns to the left of N (from right)

$ fields :-2 <<< "a b c d e f g"
a b c d e f

select range of columns

$ fields 2:5 <<< "a b c d e f g"
b c d e

any combination of the above, all together

$ fields 1,2,-2,3:5,2:,:-3 <<< "a b c d e f g"
a b f c d e b c d e f g a b c d e

Contributing

The github.com/shoenig/fields module is always improving with new features and error corrections. For contributing bug fixes and new features please file an issue.

License

The github.com/shoenig/fields module is open source under the MIT license.