Awk

Usage

awk OPTIONS PROGRAM FILE

Flags

OFS=""                      Add seperator between ""
$NF                         End of file
'BEGIN {print "SomeText"}'  Start with text

Examples

Pipe who command to awk and print the first and third object in a line

who | awk '{print $1,$3}'

Cat a file and print first, second and last word of the file

cat <file> | awk '{print $1,$2,$NF}'

Get date, month year

date | awk '{print $2,$3,$4}'
Result: 28 feb 2020

Use a file with seperator : in items

awk -F: '{print $1,$6}' /etc/passwd

Grab first and last word per line in file

$ cat testfile.txt
This is a test file.
Or not this kind of test file.
Where are the cats.

$ cat testfile.txt | awk '{print $1,$NF}'
This file.
Or file.
Where cats.

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