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Full Discussion: Need to find and replace in a file
Top Forums UNIX for Beginners Questions & Answers Need to find and replace in a file Post 302997764 by RudiC on Friday 19th of May 2017 06:14:41 AM
Old 05-19-2017
That specification is not too consistent: It's not clear if any ABC pattern should be matched, or just the one at positions 6 - 8. There's no 120th char position in the input sample, and esp. not 30 onwards. The replacement as well is not 30 char but 10 chars long. Will it always be the rest of the line to be replaced?
To simulate your sample output, try (GNU sed)
Code:
sed '/ABC/ s/./ /94g' file
20840GFC00524096100000LAU1LDNUSD CR       6.322017041120170411              00016574200165737CO:BASAGIO
20840GFC00524096100000LAU1LDNUSD CR       6.322017041120170411              00016574200165737CO:BRGRUUR
20840ABC00524096100000LAU1LDNUSD CR       6.322017041120170411              00016574200165737          
20840ABC00524096100000LAU1LDNUSD CR       6.322017041120170411              00016574200165737          
20840ABC00524096100000LAU1LDNUSD CR       6.322017041120170411              00016574200165737          
20840ABC00524096100000LAU1LDNUSD CR       6.322017041120170411              00016574200165737          
20840ABC00524096100000LAU1LDNUSD CR       6.322017041120170411              00016574200165737          
20840XYZ00524096100000LAU1LDNUSD CR       6.322017041120170411              00016574200165737CO:BUGFGFG
20840XYZ00524096100000LAU1LDNUSD CR       6.322017041120170411              00016574200165737CO:BTGFFSF

or
Code:
awk '/ABC/ {print substr ($0, 1, 93); next} 1' file

 

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