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Top Forums Shell Programming and Scripting Commenting a specific line and inserting a new line after commented line. Post 302745549 by manishdivs on Monday 17th of December 2012 01:36:52 PM
Old 12-17-2012
Tools Commenting a specific line and inserting a new line after commented line.

Hello All,

I have following file contents
Code:
cat file
#line=aaaaaa
#line=bbbbbb
#line=cccccc
#line=dddddd
line=eeeeee
#comment=11111
#comment=22222
#comment=33333
#comment=44444
comment=55555
 
Testing script
Good Luck!

I would like to comment line
Code:
line=eeeeee

and insert a new line
Code:
line=ffffff

immediate after this.

I wrote following command to comment my line:
Code:
sed 's/\(^line=*\)/#\1/' manish

And Google for inserting a new line and found following solution:
Code:
sed '/^line=/ a\
line=ffffff' manish

  1. I tried to combine both commands in a single command using “|” but I am not able to get it correctly. Can anyone please help me to achieve this objective?
  2. 2nd command to insert a new line is divided in 2 lines (using “\”). I tried several option to make it in a single line but every time it gives me some error. Can you please help me to combine 2nd command in a single line?


Output should look like:
Code:
cat file
#line=aaaaaa
#line=bbbbbb
#line=cccccc
#line=dddddd
#line=eeeeee
line=ffffff
#comment=11111
#comment=22222
#comment=33333
#comment=44444
comment=55555
 
Testing script
Good Luck!


Thank you.
Manish
 

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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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