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Full Discussion: Can BASH handle mathematical operations and do a Search & Replace?
Top Forums Shell Programming and Scripting Can BASH handle mathematical operations and do a Search & Replace? Post 302489947 by jl487 on Saturday 22nd of January 2011 10:02:16 PM
Old 01-22-2011
vgersh99, thanks for your help (both in this thread and throughout the forums). After searching the forums, I found something that may work (code that you originally worked on!), but I'm having some trouble modifying it.

What I did was create a file called convert, that has the conversions already made:
6px 5px
7px 5px
8px 6px
9px 7px
10px 8px
11px 8px
12px 9px
.....

I also created another file called file (for testing purposes) to test the replacements. I figured if a keyword is found in column one, replace it with the conversion in column two.
Code:
#!/bin/bash

while read line
do
KEY=$(echo $line | awk '{ print $1 }')
VALUE=$(echo $line | awk '{ print $2 }')
sed -e "s/${KEY}/${VALUE}/g" file > file.tmp
mv file.tmp file
done < convert

Since (I believe) awk is used for files in column format, I don't think that this code will work. Is there a way around this?
 

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LEARN ABOUT PHP

tidy_error_count

TIDY_ERROR_COUNT(3)							 1						       TIDY_ERROR_COUNT(3)

tidy_error_count - Returns the Number of Tidy errors encountered for specified document

SYNOPSIS

       int tidy_error_count (tidy  $object)

DESCRIPTION

	Returns the number of Tidy errors encountered for the specified document.

PARAMETERS

	      o $object
		- The Tidy object.

RETURN VALUES

	Returns the number of errors.

EXAMPLES

       Example #1

	      tidy_error_count(3) example

	      <?php
	      $html = '<p>test</i>
	      <bogustag>bogus</bogustag>';

	      $tidy = tidy_parse_string($html);

	      echo tidy_error_count($tidy) . "
"; //1

	      echo $tidy->errorBuffer;
	      ?>

	      The above example will output:

	      1
	      line 1 column 1 - Warning: missing <!DOCTYPE> declaration
	      line 1 column 8 - Warning: discarding unexpected </i>
	      line 2 column 1 - Error: <bogustag> is not recognized!
	      line 2 column 1 - Warning: discarding unexpected <bogustag>
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	      line 1 column 1 - Warning: inserting missing 'title' element

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PHP Documentation Group 												       TIDY_ERROR_COUNT(3)
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