Linux in a Nutshell, Fifth Edition

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gawk

This is the Title of the Book, eMatter Edition

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

The following functions are specific to gawk.

Alphabetical Summary of awk Functions and

Commands

The following alphabetical list of keywords and functions includes all that are

available in POSIX awk and gawk. Extensions that aren’t part of POSIX awk but

that are in both gawk and the Bell Laboratories awk are marked as {E}. Cases

where gawk has extensions are marked as {G}. Items that aren’t marked with a

symbol are available in all versions.

#

#

Ignore all text that follows on the same line. # is used in awk

scripts as the comment character and is not really a command.

and

and(expr1, expr2) {G}

Return the bitwise AND of expr1 and expr2, which should be

values that fit in a C unsigned long.

asort

asort(src [,dest]) {G}

Sort the array src based on the element values, destructively

replacing the indices with values from one to the number of

elements in the array. If dest is supplied, copy src to dest and sort

dest, leaving src unchanged. Returns the number of elements in src.

asorti

asorti(src [,dest]) {G}

Like asort( ), but the sorting is done based on the indices in the

array, not based on the element values. For gawk 3.1.2 and later.

atan2

atan2(y, x)

Return the arctangent of y/x in radians.

bindtextdomain

bindtextdomain(dir [,domain]) {G}

Look in directory dir for message ...