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Full Discussion: Not getting expected result
Top Forums Shell Programming and Scripting Not getting expected result Post 302995728 by drl on Tuesday 11th of April 2017 12:00:56 PM
Old 04-11-2017
Hi.

Given the indented code on file z6:
Code:
path=$1
mode=$2
b_days=$3
mins=$4
freq=$5
missing_count=9
param=$#
echo "param $param"
if [[ $missing_count -gt 0 ]]; then
  echo "missing_count condition executed"
  printf "some missing file\n" >> list.txt
  if [[ $parm==5 ]]; then
    echo "param condition executed"
    cnt=`cat list.txt | wc -l`
    val=`expr $mins / $freq`
    if [[ $val -eq  $cnt ]]; then
      echo "frequency check  executed"
    fi
  else
    echo "final missing"
    exit 0
  fi
fi

the command shellcheck z6 produces:
Code:
In z6 line 2:
mode=$2
^-- SC2034: mode appears unused. Verify it or export it.


In z6 line 3:
b_days=$3
^-- SC2034: b_days appears unused. Verify it or export it.


In z6 line 12:
  if [[ $parm==5 ]]; then
        ^-- SC2077: You need spaces around the comparison operator.


In z6 line 14:
    cnt=`cat list.txt | wc -l`
        ^-- SC2006: Use $(..) instead of deprecated `..`
             ^-- SC2002: Useless cat. Consider 'cmd < file | ..' or 'cmd file | ..' instead.                                                                    


In z6 line 15:
    val=`expr $mins / $freq`
        ^-- SC2006: Use $(..) instead of deprecated `..`
         ^-- SC2003: expr is antiquated. Consider rewriting this using $((..)), ${} or [[ ]].                                                                   
              ^-- SC2086: Double quote to prevent globbing and word splitting.
                      ^-- SC2086: Double quote to prevent globbing and word splitting.

Some details for utility shellcheck:
Code:
shellcheck      analyse shell scripts (man)
Path    : /usr/bin/shellcheck
Version : ShellCheck - shell script analysis tool
Type    : ELF 64-bit LSB executable, x86-64, version 1 (SYSV ...)
Help    : probably available with -h
Repo    : Debian 8.7 (jessie) 
Home    : http://hackage.haskell.org/package/ShellCheck

On a system like:
Code:
OS, ker|rel, machine: Linux, 3.16.0-4-amd64, x86_64
Distribution        : Debian 8.7 (jessie)

And note advice from vgersh99 about set -x

Best wishes ... cheers, drl
 

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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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