Linux in a Nutshell, Fifth Edition

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Chapter 3: Linux Commands

This is the Title of the Book, eMatter Edition

Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

List header files that have at least one #include directive:

grep -l '^#include' /usr/include/*

List files that don’t contain pattern:

grep -c pattern files | grep :0

groff

groff [options] [files]

troff [options] [files]

Frontend to the groff document-formatting system, which

normally runs troff along with a postprocessor appropriate for the

selected output device. Options without arguments can be grouped

after a single dash (-). A filename of - denotes standard input.

Options

-a Generate an ASCII approximation of the typeset output.

-b Print a backtrace.

-C Enable compatibility mode.

-dcs, -dname=s

Define the character c or string name to be the string s.

-e Preprocess with eqn, the equation formatter.

-E Don’t print any error messages.

-ffam

Use fam as the default font family.

-Fdir

Search dir for subdirectories with DESC and font files before

searching the default directory /usr/lib/groff/font.

-h Print a help message.

-i Read standard input after all files have been processed.

-l Send the output to a print spooler (as specified by the print

command in the device description file).

-Larg

Pass arg to the spooler. Each argument should be passed with

a separate -L option.

-mname

Read the macro file tmac.name.

-Mdir

Search directory dir for macro files before searching the ...