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Top Forums Shell Programming and Scripting To increment the values from the file Post 302530375 by sidh_arth85 on Monday 13th of June 2011 11:46:06 PM
Old 06-14-2011
To increment the values from the file

Hi

I have the file called "file.txt" which contains the following output
Code:
$cat file.txt
sandy
<version>1</version>
karen
<version>2</version>
Rob
<version>3</version>
peter
<version>4</version>

i want to write a command which will add the value 1 to the digits and show the output like this.
Code:
sandy
<version>2</version>
karen
<version>3</version>
Rob
<version>4</version>
peter
<version>5</version>

I have tried using some commands but it seems it is not working or i think i am wrong somewhere Smilie.
Code:
$ cat file.txt | grep "<version>" | sort -r | uniq | while read line
do
n=`echo $line | cut -f2 -d"<" |cut -f2 -d">"`
nn=`expr $n + 1`
newb="<version>$nn</version>"
sed 's;'${line}';'${newb}';g' file.txt >> file1.txt
mv -f file1.txt file.txt
done

Please help me resolving this problem.

Regards
Siddharth

Last edited by Franklin52; 06-14-2011 at 05:10 AM.. Reason: Please use code tags
 

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IRSEND(1)								FSF								 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 0.8.7pre1 May 2010 IRSEND(1)
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