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Full Discussion: awk getline
Top Forums Shell Programming and Scripting awk getline Post 302321557 by garethsays on Monday 1st of June 2009 12:52:35 PM
Old 06-01-2009
awk getline

How do you make the getline function return to the original line?
The example below should make it clear where I am currently going wrong.

Thanks

AWK SCRIPT:
-------------
awk -F '-' '{
tmpLine = "EMPTY"
print "CURRENT LINE :"$0
getline tmpLine
print "NEXT LINE :"tmpLine
}' testawk.txt

testawk.txt
--------------
1-TEST-FILE-NEW
2-TEST-FILE-NEW
3-TEST-FILE-NEW
4-TEST-FILE-NEW
5-TEST-FILE-NEW
6-TEST-FILE-NEW
7-TEST-FILE-NEW

output:
-------
CURRENT LINE :1-TEST-FILE-NEW
NEXT LINE :2-TEST-FILE-NEW
CURRENT LINE :3-TEST-FILE-NEW
NEXT LINE :4-TEST-FILE-NEW
CURRENT LINE :5-TEST-FILE-NEW
NEXT LINE :6-TEST-FILE-NEW
CURRENT LINE :7-TEST-FILE-NEW
NEXT LINE : EMPTY

desired output
--------------
CURRENT LINE :1-TEST-FILE-NEW
NEXT LINE :2-TEST-FILE-NEW
CURRENT LINE :2-TEST-FILE-NEW
NEXT LINE :3-TEST-FILE-NEW
CURRENT LINE :3-TEST-FILE-NEW
NEXT LINE :4-TEST-FILE-NEW
CURRENT LINE :4-TEST-FILE-NEW
NEXT LINE :5-TEST-FILE-NEW
CURRENT LINE :5-TEST-FILE-NEW
NEXT LINE :6-TEST-FILE-NEW
CURRENT LINE :6-TEST-FILE-NEW
NEXT LINE :7-TEST-FILE-NEW
CURRENT LINE :7-TEST-FILE-NEW
NEXT LINE : EMPTY
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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