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Top Forums Shell Programming and Scripting Match column 8 in file 1 with column 2 in file 2 and replace.. Post 302960749 by kieranfoley on Thursday 19th of November 2015 07:33:09 AM
Old 11-19-2015
Match column 8 in file 1 with column 2 in file 2 and replace..

I am looking at the NR==FNR posts and trying to use them to achieve the following but I am not getting it.
I have 2 files. I want to match column 8 in file 1 with column 2 in file 2. When they match I want to replace column 9 in file 1 with column 1 in file 2.

This is and extract from file 1

Code:
MDSA01,20:00:54:7f:ee:4a:29:80,OAKS VSAN 4,1,12,0x2a1541,4 Gbps ,10000000c964e8e4,SEIITCDB16
MDSB01,20:00:54:7f:ee:56:ab:c0,OAKS VSAN 4,1,12,0xe512c0,4 Gbps ,10000000c964ec06,SEIITCDB16
MDSA01,20:00:54:7f:ee:4a:29:80,OAKS VSAN 4,port-channel, 2,0x2a0062,N/A,20000025b550137d,HOSTNAME_INFO
MDSA01,20:00:54:7f:ee:4a:29:80,OAKS VSAN 4,port-channel, 2,0x2a0063,N/A,20000025b55011dc,HOSTNAME_INFO
MDSB01,20:00:54:7f:ee:56:ab:c0,OAKS VSAN 4,1,14,0xe51ac0,4 Gbps ,10000000c95de114,SEIMOBDB03
MDSA01,20:00:54:7f:ee:4a:29:80,OAKS VSAN 4,1,15,0x2a0d00,8 Gbps ,10000000c9ae12ec,SEIDEVDB61


This is file 2

Code:
SEIESXPD21,20000025b550101c
SEIESXPD21,20000025b550137d
SEIESXPD22,20000025b55011dc
SEIESXPD22,20000025b550135d
SEIESXPD23,20000025b55011bc
SEIESXPD23,20000025b550133d


So in this example I want to replace HOSTNAME_INFO in file 1 with SEIESXPD21 when 20000025b550137d in column 8 in file 1 matches column 2 in file 2. and the same goes for 20000025b55011dc. I want to replace HOSTNAME_INFO with SEIESXPD22 in file 1.

The output should look like this.

Code:
MDSA01,20:00:54:7f:ee:4a:29:80,OAKS VSAN 4,1,12,0x2a1541,4 Gbps ,10000000c964e8e4,SEIITCDB16
MDSB01,20:00:54:7f:ee:56:ab:c0,OAKS VSAN 4,1,12,0xe512c0,4 Gbps ,10000000c964ec06,SEIITCDB16
MDSA01,20:00:54:7f:ee:4a:29:80,OAKS VSAN 4,port-channel, 2,0x2a0062,N/A,20000025b550137d,SEIESXPD21
MDSA01,20:00:54:7f:ee:4a:29:80,OAKS VSAN 4,port-channel, 2,0x2a0063,N/A,20000025b55011dc,SEIESXPD22
MDSB01,20:00:54:7f:ee:56:ab:c0,OAKS VSAN 4,1,14,0xe51ac0,4 Gbps ,10000000c95de114,SEIMOBDB03
MDSA01,20:00:54:7f:ee:4a:29:80,OAKS VSAN 4,1,15,0x2a0d00,8 Gbps ,10000000c9ae12ec,SEIDEVDB61

I have tried the following

Code:
awk -F, 'NR==FNR{A[$2]=$2;next}$8 in A{$9=A[$2]}1' file2.out file1.out

But I am getting a blank entry for column 9 in file 1 when I do this. That is when the matching occurs. Can somebody please help me with this?
 

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IRSEND(1)								FSF								 IRSEND(1)

NAME
irsend - basic LIRC program to send infra-red commands SYNOPSIS
irsend [options] DIRECTIVE REMOTE CODE [CODE...] DESCRIPTION
Asks the lircd daemon to send one or more CIR (Consumer Infra-Red) commands. This is intended for remote control of electronic devices such as TV boxes, HiFi sets, etc. DIRECTIVE can be: SEND_ONCE - send CODE [CODE ...] once SEND_START - start repeating CODE SEND_STOP - stop repeating CODE LIST - list configured remote items SET_TRANSMITTERS - set transmitters NUM [NUM ...] SIMULATE - simulate IR event REMOTE is the name of a remote, as described in the lircd configuration file. CODE is the name of a remote control key of REMOTE, as it appears in the lircd configuration file. NUM is the transmitter number of the hardware device. For the LIST DIRECTIVE, REMOTE and/or CODE can be empty: LIST "" "" - list all configured remote names LIST REMOTE "" - list all codes of REMOTE LIST REMOTE CODE - list only CODE of REMOTE The SIMULATE command only works if it has been explicitly enabled in lircd. -h --help display usage summary -v --version display version -d --device use given lircd socket [/var/run/lirc/lircd] -a --address=host[:port] connect to lircd at this address -# --count=n send command n times EXAMPLES
irsend LIST DenonTuner "" irsend SEND_ONCE DenonTuner PROG-SCAN irsend SEND_ONCE OnkyoAmpli VOL-UP VOL-UP VOL-UP VOL-UP irsend SEND_START OnkyoAmpli VOL-DOWN ; sleep 3 irsend SEND_STOP OnkyoAmpli VOL-DOWN irsend SET_TRANSMITTERS 1 irsend SET_TRANSMITTERS 1 3 4 irsend SIMULATE "0000000000000476 00 OK TECHNISAT_ST3004S" FILES
/etc/lirc/lircd.conf Default lircd configuration file. It should contain all the remotes, their infra-red codes and the corresponding timing and wave- form details. DIAGNOSTICS
If lircd is not running (or /var/run/lirc/lircd lacks write permissions) irsend aborts with the following diagnostics: "irsend: could not connect to socket" "irsend: Connection refused" (or "Permission denied"). SEE ALSO
The documentation for lirc is maintained as html pages. They are located under html/ in the documentation directory. lircd(8), mode2(1), smode2(1), xmode2(1), irrecord(1), irw(1), http://www.lirc.org. irsend 0.8.7pre1 May 2010 IRSEND(1)
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