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Unix in a Nutshell, 4th Edition by Arnold Robbins

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Group Listing of awk Functions and Commands

The following table classifies awk functions and commands.

Function type

Functions or commands

a Available in gawk.

b Available in Bell Labs awk and gawk.

Arithmetic

atan2

cos

exp

int

log

 

rand

sin

sqrt

srand

 

String

asort a

asorti a

gensub a

gsub

index

 

length

match

split

sprintf

strtonum a

 

sub

substr

tolower

toupper

 

Control Flow

break

continue

do/while

exit

for

 

if/else

return

while

  

I/O

close

fflush b

getline

next

nextfile B

 

print

printf

   

Programming

extension b

delete

function

system

 

The following functions are specific to gawk.

Function type

Functions or commands

    

Bit Manipulation

and

compl

lshift

or

rshift

 

xor

    

Time

mktime

strftime

systime

  

Translation

bindtextdomain

dcgettext

dcngettext

  

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