Uses fs as the value of the input field separator (FS variable).
file program-file
fprogram-file
Reads the gawk program from the file named program-file instead of the command line. You can specify this option more than once on a command line.
help
W help
Summarizes how to use gawk.
lint
W lint
Warns about constructs that may not be correct or portable.
posix
W posix
Runs a POSIX-compliant version of gawk. This option introduces some restrictions; see the gawk man page for details.
traditional
W traditional
Ignores the new GNU features in a gawk program, making the program conform to UNIX awk.
assign var =value
vvar =value
Assigns value to the variable var. The assignment takes place prior to execution of the gawk program and is available within the BEGIN pattern (page 531). You can specify this option more than once on a command line.