awk,cut fields by change field format Post: 302368586

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Top Forums Shell Programming and Scripting awk,cut fields by change field format Post 302368586 by jimmy_y on Thursday 5th of November 2009 06:30:01 AM

11-05-2009

Registered User

awk,cut fields by change field format

Hi Everyone,

Code:

[root@]# cat 1.txt
1321631,77770132976455,19,20091001011859,20091001011907
1321631,77770132976455,19,20091001011859,20091001011907
1321631,77770132976455,19,20091001011859,20091001011907
[root@]# cat 1.txt | awk -F, '{OFS=",";print $1,$3,$4,$5}'
1321631,19,20091001011859,20091001011907
1321631,19,20091001011859,20091001011907
1321631,19,20091001011859,20091001011907
[root@]# cat 1.txt | cut -f1,3,4,5 -d ','
1321631,19,20091001011859,20091001011907
1321631,19,20091001011859,20091001011907
1321631,19,20091001011859,20091001011907
[root@]#

I can use either awk or cut to acheive the same result. If the finally output is:
1321631,19,20091001011859,20091001,011907
1321631,19,20091001011859,20091001,011907
1321631,19,20091001011859,20091001,011907
means to seperate the yyymmdd and hhmmss with ',', how should i do with awk or cut, or sed, etc, without open 1.txt, read the file, split','.

Thanks

jimmy_y

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igawk

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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