Uses fs as the value of the input field separator (FS variable).
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.
Summarizes how to use gawk.
Warns about constructs that may not be correct or portable.
Runs a POSIX-compliant version of gawk. This option introduces some restrictions; see the gawk man page for details.
Ignores the new GNU features in a gawk program, making the program conform to UNIX awk.
assign var =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.