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Top Forums UNIX for Beginners Questions & Answers Need to find and replace in a file Post 302997871 by Aia on Sunday 21st of May 2017 04:50:40 PM
Old 05-21-2017
Hi abhi_123,
Your data is not consistent. It has spaces and tabs mixed in. ^I is how I told the cat utility to show tabs.

Code:
cat -t abhi_123.example

Code:
20840GFC00524096100000LAU1LDNUSD CR       6.322017041120170411                       ^I^I^I^I^I^I  ^I       00016574200165737CO:BASAGIOSDSDSDSDSDSDSDSDSDSDSDSDSDSDSD
20840GFC00524096100000LAU1LDNUSD CR       6.322017041120170411             ^I^I^I^I^I^I^I^I       00016574200165737CO:BRGRUURSDSDSDSDSDSDSDSDSDSDSDSDSDSDSD
20840ABC00524096100000LAU1LDNUSD CR       6.322017041120170411              ^I^I^I^I^I^I^I^I       00016574200165737CO:BTGFGFGSDSDSDSDSDSDSDSDSDSDSDSDSDSDSD
20840ABC00524096100000LAU1LDNUSD CR       6.322017041120170411           ^I^I^I^I^I^I^I^I       00016574200165737CO:BGGFEWESDSDSDSDSDSDSDSDSDSDSDSDSDSDSD
20840ABC00524096100000LAU1LDNUSD CR       6.322017041120170411                       ^I^I^I^I^I^I  ^I       00016574200165737CO:BOGFDUISDSDSDSDSDSDSDSDSDSDSDSDSDSDSD
20840ABC00524096100000LAU1LDNUSD CR       6.322017041120170411                       ^I^I^I^I^I^I  ^I       00016574200165737CO:BPGFDSYSDSDSDSDSDSDSDSDSDSDSDSDSDSDSD
20840XYZ00524096100000LAU1LDNUSD CR       6.322017041120170411                       ^I^I^I^I^I^I  ^I       00016574200165737CO:BUGFGFGSDSDSDSDSDSDSDSDSDSDSDSDSDSDSD
20840XYZ00524096100000LAU1LDNUSD CR       6.322017041120170411                       ^I^I^I^I^I^I  ^I       00016574200165737CO:BTGFFSFSDSDSDSDSDSDSDSDSDSDSDSDSDSDSD
20840ABC00524096100000LAU1LDNUSD CR       6.322017041120170411            ^I^I^I^I^I^I^I^I       00016574200165737CO:BIGFGFGSDSDSDSDSDSDSDSDSDSDSDSDSDSDSD

Therefore you can not rely on positions how you have be proposing from the beginning of the thread.

Counting on this uncertainty, the following two options might or might not do what you want.
Code:
perl -pe '/ABC/ and s/CO:B\w+$//' abhi_123.example

or
Code:
perl -pe 's/(ABC.*?)CO:B\w+$/$1/' abhi_123.example


Last edited by Aia; 05-21-2017 at 05:56 PM..
 

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GIT-REPLACE(1)							    Git Manual							    GIT-REPLACE(1)

NAME
git-replace - Create, list, delete refs to replace objects SYNOPSIS
git replace [-f] <object> <replacement> git replace -d <object>... git replace -l [<pattern>] DESCRIPTION
Adds a replace reference in .git/refs/replace/ The name of the replace reference is the SHA1 of the object that is replaced. The content of the replace reference is the SHA1 of the replacement object. Unless -f is given, the replace reference must not yet exist in .git/refs/replace/ directory. Replacement references will be used by default by all git commands except those doing reachability traversal (prune, pack transfer and fsck). It is possible to disable use of replacement references for any command using the --no-replace-objects option just after git. For example if commit foo has been replaced by commit bar: $ git --no-replace-objects cat-file commit foo shows information about commit foo, while: $ git cat-file commit foo shows information about commit bar. The GIT_NO_REPLACE_OBJECTS environment variable can be set to achieve the same effect as the --no-replace-objects option. OPTIONS
-f If an existing replace ref for the same object exists, it will be overwritten (instead of failing). -d Delete existing replace refs for the given objects. -l <pattern> List replace refs for objects that match the given pattern (or all if no pattern is given). Typing "git replace" without arguments, also lists all replace refs. BUGS
Comparing blobs or trees that have been replaced with those that replace them will not work properly. And using git reset --hard to go back to a replaced commit will move the branch to the replacement commit instead of the replaced commit. There may be other problems when using git rev-list related to pending objects. And of course things may break if an object of one type is replaced by an object of another type (for example a blob replaced by a commit). SEE ALSO
git-tag(1) git-branch(1) git(1) GIT
Part of the git(1) suite Git 1.7.10.4 11/24/2012 GIT-REPLACE(1)
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