function not see variable in script Post: 302452405

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Top Forums UNIX for Dummies Questions & Answers function not see variable in script Post 302452405 by ShinTec on Friday 10th of September 2010 08:42:57 AM

09-10-2010

Registered User

function not see variable in script

Hi Forum

Can anyone tell me whats wrong with my script. What i want to do read in values from a input file using a while loop then taking that input from the file into a function that i created. Every time i execute the script it goes through the while loop but the function doesn't see the values that im trying to pass it from the file.

Here is my code

Code:

##################################
#this function validate the cost of a product
validCost()
{
  
  echo ${1} | grep -E '[:digit:]+.[:digit:]+'

  if [ $? = 0 ]; then
  {
      echo 'this is valid'
      echo ${1}
  }
  else
  {
      echo 'fail hard out'
      echo ${1}
  }
  fi   
}


##################################
#Main body
##################################

#testing a while loop reading in file

echo '##################'
echo ${1}
echo '##################'
echo 'start of the loop'

echo '##################'
while read ${x} 
do
  
echo '##################'
  echo 'in the loop'
  validCost ${x}
echo '##################'
done < ${1}


echo 'end of loop'

############
here my input file
##############

Code:

CHI132456
CHI132456
CHI132
1.5
2.6

i just want to know why the function cant see any data that i pass to it from the file.Any help would be much appreciated and thank you in advance

ShinTec

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LEARN ABOUT LINUX

makesh

MAKESH(1)						      General Commands Manual							 MAKESH(1)

NAME

       makeSH - a .SH script maker

SYNOPSIS

       makeSH files

DESCRIPTION

       MakeSH  examines  one or more scripts and produces a .SH file that, when run under sh, will produce the original script.  The .SH script so
       produced has two sections containing code destined for the output.  The first section has variable substitutions performed  on  it  (taking
       values  from  config.sh), while the second section does not.  MakeSH does not know which variables you want to have substituted, so it puts
       the whole script into the second section.  It's up to you to insert any variable substitutions in the first section for any values you want
       from config.sh.

       You  should  run  makeSH from within your top-level directory and use the relative path to the file as an argument, so that the "Extracting
       ..." line printed while running the produced .SH file later on will give that same path.

AUTHOR

       Larry Wall <lwall@netlabs.com>

SEE ALSO

       pat(1), metaconfig(1), makedist(1).

BUGS

       It could assume that variables from metaconfig's Glossary need to be initialized in the first section, but I'm too lazy to make it do that.

								       LOCAL								 MAKESH(1)

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