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Top Forums Shell Programming and Scripting Shell script to apply functions to multiple columns dynamically Post 303025748 by RudiC on Sunday 11th of November 2018 11:02:02 AM
Old 11-11-2018
Not sure I fully understand what you're after, but try
Code:
awk -F\| '
NR == 1         {for (i=1; i<=NF; i++) if ("," MCOL "," ~ "," $i ",") COL[++CNT] = i
                 print $0, "HASHED COLUMNS", "HASHVALUE"
                 next
                }
                {TMP = ""
                 for (i=1; i<=CNT; i++) TMP = TMP $(COL[i])
                 ("echo -n " TMP " | md5sum") | getline MD5
                 sub (/ *-/, "", MD5)
                 print $0, MCOL, MD5
                }
' OFS="|" MCOL="ID,NAME" file
ID|NAME|AGE|GENDER|HASHED COLUMNS|HASHVALUE
10|ABC|30|M|ID,NAME|f2e88b4a581adf6c7833d95799b7a08c
20|DEF|20|F|ID,NAME|09b01f45ed9092b4c3c155911571bf31


and report back how far it gets you...
 

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iptables-apply(8)					      System Manager's Manual						 iptables-apply(8)

NAME
iptables-apply - a safer way to update iptables remotely SYNOPSIS
iptables-apply [-hV] [-t timeout] ruleset-file DESCRIPTION
iptables-apply will try to apply a new ruleset (as output by iptables-save/read by iptables-restore) to iptables, then prompt the user whether the changes are okay. If the new ruleset cut the existing connection, the user will not be able to answer affirmatively. In this case, the script rolls back to the previous ruleset after the timeout expired. The timeout can be set with -t. When called as ip6tables-apply, the script will use ip6tables-save/-restore instead. OPTIONS
-t seconds, --timeout seconds Sets the timeout after which the script will roll back to the previous ruleset. -h, --help Display usage information. -V, --version Display version information. SEE ALSO
iptables-restore(8), iptables-save(8), iptables(8). LEGALESE
iptables-apply is copyright by Martin F. Krafft. This manual page was written by Martin F. Krafft <madduck@madduck.net> Permission is granted to copy, distribute and/or modify this document under the terms of the Artistic License 2.0. 2006-06-04 iptables-apply(8)
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