gawk.info: Invoking Gawk

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2 Running `awk' and `gawk'
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This major node covers how to run awk, both POSIX-standard and
`gawk'-specific command-line options, and what `awk' and `gawk' do with
non-option arguments.  It then proceeds to cover how `gawk' searches
for source files, reading standard input along with other files,
`gawk''s environment variables, `gawk''s exit status, using include
files, and obsolete and undocumented options and/or features.

   Many of the options and features described here are discussed in
more detail later in the Info file; feel free to skip over things in
this major node that don't interest you right now.

Command Line

How to run `awk'.

Options

Command-line options and their meanings.

Other Arguments

Input file names and variable assignments.

Naming Standard Input

How to specify standard input with other files.

Environment Variables

The environment variables `gawk' uses.

Exit Status

`gawk''s exit status.

Include Files

Including other files into your program.

Loading Shared Libraries

Loading shared libraries into your program.

Obsolete

Obsolete Options and/or features.

Undocumented

Undocumented Options and Features.