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Top Forums Shell Programming and Scripting Extracting logs using gunzip awk and gzip Post 302972799 by pulkitbahl on Wednesday 11th of May 2016 01:17:29 AM
Old 05-11-2016
Quote:
Originally Posted by Don Cragun
And how do you want to "take" these parameters from the user?
  1. Will the user give them as command-line arguments?
  2. Do you want your script to prompt the user for all of these arguments?
  3. Are there default values that the user can override with command-line options?
  4. Something else???
What have you tried?
I am taking Input from the user

Code:
echo -n "Enter Start Date in Format YYYYMMDD:"
read date
echo "You Entered : $date"



Code:
gunzip -c "$file_"*.gz | awk '$0 > "$Date $Time" && $0 < "$Date $Time"' | gzip >> "$location" &"

but this is not working $0 is picking the name of the shell script I am running .
I tried using back slash but that is also not working though the value does not get updated.




Code:
 
 initial=[$date1][$time]
  
 final=[$date3][$time1]
  
 Duration="\$0 > \"$initial\" && \$0 < \"$final\"" 
  
 gunzip -c $file*.gz | awk \'$Duration\' | gzip >> $location

Using this the Duration is in proper structure as in the hard coded one.
but while running it is giving error.

It is giving me the below error

==============
awk: '$0

awk: ^ invalid char ''' in expression
==============

What am I doing wrong?
 

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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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