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Full Discussion: Delete line by pattern match in column
Top Forums Shell Programming and Scripting Delete line by pattern match in column Post 302948540 by Roozo on Tuesday 30th of June 2015 09:55:16 AM
Old 06-30-2015
Delete line by pattern match in column
Code:
file:
1|12322|tow|
5|23422|pow|
6|23423|cow|
3|34324|how|

deletelines:
12322
23423

My command to delete line
Code:
while read NUM 
do 
awk -F"\|"  '$2 !~ /`"$NUM"`/' file >file.back 
mv file.back file 
done<deletelines

But NUM variable is not working, unable to delete the line
Can some one help on this?
 

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LEARN ABOUT X11R4

traceroute

TRACEROUTE(1)                                                      User Commands                                                     TRACEROUTE(1)

NAME

       traceroute - Trace the route to a host

SYNOPSIS

       traceroute [OPTION...] HOST

DESCRIPTION

       Print the route packets trace to network host.

       -f, --first-hop=NUM
              Set initial hop distance, that is the time-to-live.

       -g, --gateways=GATES
              List of gateways for loose source routing.

       -I, --icmp
              Use ICMP ECHO as probe.

       -m, --max-hop=NUM
              Set maximal hop count (default is 64).

       -M, --type=METHOD
              Use METHOD (icmp or udp) for traceroute operations, defaulting to udp.

       -p, --port=PORT
              Use destination PORT port (default is 33434).

       -q, --tries=NUM
              Send NUM probe packets per hop (default is 3).

       --resolve-hostnames
              Resolve hostnames.

       -t, --tos=NUM
              Set type of service (TOS) to NUM.

       -w, --wait=NUM
              Wait NUM seconds for response (default is 3).

       -?, --help
              Give this help list.

       --usage
              Give a short usage message.

       -V, --version
              Print program version.

GNU inetutils                                                       2015-05-15                                                       TRACEROUTE(1)
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