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Full Discussion: Need to add prefix using sed or awk from cat the file
Top Forums Shell Programming and Scripting Need to add prefix using sed or awk from cat the file Post 303006120 by ranjancom2000 on Friday 27th of October 2017 09:31:44 AM
Old 10-27-2017
Thanks i am search in google not able to find the right code. It work great if i have any doubt on procession i will come back

---------- Post updated at 08:31 AM ---------- Previous update was at 07:17 AM ----------

Hi RudiC

Could you please help to provide a solution using awk or diff command. I need to add one more prefix by compare a file input. Since the file very large it will contain more then 10k devs. I can't compare in loop. Instead in want to use diff or some other compare command

Real file
Code:
Node1,dev2,nofast,TDEV RW 1035788
Node1,dev10,nofast,TDEV RW 1035788
Server1,dev14,nofast,TDEV RW 69053
Server2,dev4,nofast,TDEV RW 69053
Server2,dev1,nofast,TDEV RW 103579
Server3,dev7,nofast,TDEV RW 69053
server4,dev11    RDF1+TDEV RW 69053
server4,dev9    RDF1+TDEV RW 517894
server4,dev3    RDF1+TDEV RW 621473
server6,dev5,nofast,TDEV RW 34526
server6,dev8,nofast,TDEV RW 34526
server6,dev13    RDF1+TDEV RW 34526
server6,dev12    RDF1+TDEV RW 34526
server6,dev6,nofast,TDEV RW 34526

Code:
The input file will have 20k devs like that 

dev14
dev15
dev16
dev17
dev18
dev19
dev20
dev21
dev1
dev23
dev24
dev25

I need output will be like this "nofast,T1"

Code:
Server1,dev14,nofast,T1,TDEV RW 69053
Server2,dev4,nofast,TDEV RW 69053
Server2,dev1,nofast,T1,TDEV RW 103579
Server3,dev7,nofast,TDEV RW 69053
server4,dev11    RDF1+TDEV RW 69053
server4,dev9    RDF1+TDEV RW 517894
server4,dev3    RDF1+TDEV RW 621473
server6,dev5,nofast,TDEV RW 34526
server6,dev8,nofast,TDEV RW 34526
server6,dev13    RDF1+TDEV RW 34526
server6,dev12    RDF1+TDEV RW 34526
server6,dev6,nofast,TDEV RW 34526

 

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LEARN ABOUT OPENSOLARIS

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).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+-----------------+
       |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
       +--------------------+-----------------+
       |Availability	    | SUNWgawk	      |
       +--------------------+-----------------+
       |Interface Stability | Volatile	      |
       +--------------------+-----------------+
NOTES

       Source for gawk is available on http://opensolaris.org.

Free Software Foundation					    Nov 3 1999								  IGAWK(1)
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