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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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LEARN ABOUT DEBIAN

irsend

IRSEND(1)							   User Commands							 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 0.9.0-pre1						   October 2010 							 IRSEND(1)
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