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Full Discussion: Assigning basename result to another variable
Top Forums Shell Programming and Scripting Assigning basename result to another variable Post 303021620 by annacreek on Monday 13th of August 2018 12:38:16 PM
Old 08-13-2018
I will try to clarify one of my issues.
I need to get item selected from whiptail (menu) --checklist

Here is my last simplified code using "while read" and it sort off works retrieving values from menu.


Three issues

1. It will print continually - after "enter" and only first parameter passed to the function , not the (menu) selection and only when --separate-output is implemented

2. It will print selection in "" after "enter", then it will print first parameter passed to the function, continually after each enter press when --separate-output is NOT implemented.

3. It will never "terminate " the "while read "



I can live with "" around selection , but need to stop the "while read".
Any suggestion will be appreciated.
Cheers



BTW

I run plain bash on Raspian OS.

My code is under construction / troubleshooting and I do concentrate on issues
not on keeping the code in sync with comments. It should not be a big issue if discussion participants bypass the comment too if the are not relevant.





Code:
   	 	 	 	   czechlist_DEBUG  
 Passed parameter #1 is DEBUG USB  
 Passed parameter #2 is lsusb
 Passed parameter #3 is test parameter !  
 Passed parameter #4 is test parameter 2  
 
 
 DEBUG USB  
 
 
 DEBUG USB  
 
 
 
 
 
 
 czechlist_DEBUG(){
 echo "czechlist_DEBUG "
 echo "Passed parameter #1 is $1"
 echo "Passed parameter #2 is $2"
 echo "Passed parameter #3 is $3"
 echo "Passed parameter #4 is $4"
 #echo "--checklist <text> <height> <width> <listheight> [tag it$
 # Option 1"
 #pause  
  whiptail \
  --title "$1"  \
  --separate-output \
  --checklist  "Choose: " 20 78 15 \
  "$2" "" on  \
  "$3" "" off \
  "$4" "" off
  2>selection  
 #prints selection / results without separate-output option
 #  --separate-output \
 while read selection 
 do  
         echo "$1"
 done  
   p { margin-bottom: 0.1in; line-height: 115%; }p { margin-bottom: 0.1in; line-height: 115%; }

 

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LEARN ABOUT PHP

apc_cas

APC_CAS(3)								 1								APC_CAS(3)

apc_cas - Updates an old value with a new value

SYNOPSIS

       bool apc_cas (string  $key, int	$old, int  $new)

DESCRIPTION

       apc_cas(3)  updates  an	already existing integer value if the $old parameter matches the currently stored value with the value of the $new
       parameter.

PARAMETERS

	      o $key
		- The key of the value being updated.

	      o $old
		- The old value (the value currently stored).

	      o $new
		- The new value to update to.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      apc_cas(3) example

	      <?php
	      apc_store('foobar', 2);
	      echo '$foobar = 2', PHP_EOL;
	      echo '$foobar == 1 ? 2 : 1 = ', (apc_cas('foobar', 1, 2) ? 'ok' : 'fail'), PHP_EOL;
	      echo '$foobar == 2 ? 1 : 2 = ', (apc_cas('foobar', 2, 1) ? 'ok' : 'fail'), PHP_EOL;

	      echo '$foobar = ', apc_fetch('foobar'), PHP_EOL;

	      echo '$f__bar == 1 ? 2 : 1 = ', (apc_cas('f__bar', 1, 2) ? 'ok' : 'fail'), PHP_EOL;

	      apc_store('perfection', 'xyz');
	      echo '$perfection == 2 ? 1 : 2 = ', (apc_cas('perfection', 2, 1) ? 'ok' : 'epic fail'), PHP_EOL;

	      echo '$foobar = ', apc_fetch('foobar'), PHP_EOL;
	      ?>

	      The above example will output something similar to:

	      $foobar = 2
	      $foobar == 1 ? 2 : 1 = fail
	      $foobar == 2 ? 1 : 2 = ok
	      $foobar = 1
	      $f__bar == 1 ? 2 : 1 = fail
	      $perfection == 2 ? 1 : 2 = epic fail
	      $foobar = 1

SEE ALSO 
apc_dec(3), apc_store(3).
PHP Documentation Group 														APC_CAS(3)
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