awk oneliners

To print example.txt between the first appearance of foo and the following appearance of bar (both included)

awk '/foo/,/bar/' example.txt

To print the names for all users in the passwd file

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

... and to print all excepting root and ftp

awk -F: '!/^(ftp)|(root)/ { print $1; }' /etc/passwd

awk related links

• AWK page at Bell Labs