Search and Replace with Confirmation Post: 302390136

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Top Forums Shell Programming and Scripting Search and Replace with Confirmation Post 302390136 by Abhinav Tyagi on Wednesday 27th of January 2010 03:27:38 AM

01-27-2010

Registered User

I understand your point
but if I use my sed command in

Code:

if [ grep /abc/ filename];then
   if [ "$ANSWER" == "Y" ];then
     #Run the Sed Command
   else
      #Exit the loop
   fi
fi

then this would be asking confirmation for replacing text at some position or whole in a file...

I want to know how can I use SED command to replace each occurence only with confirmation from the user.

eg.

let this be some text in file

Code:

apple boy cat dog
boy dog apple apple cat
...
...

script should display

do you want to replace "apple" with "APPLE()" in line
apple boy cat dog (y/n)

say n

again
do you want to replace "apple" with "APPLE()" in line (for first occurrence)
boy dog apple apple cat (y/n)

say y

again
do you want to replace "apple" with "APPLE()" in line (for second occurrence)
boy dog APPLE() apple cat (y/n)

say n

and so on

Can this be achieved using SED or any other command ???

Last edited by pludi; 01-27-2010 at 05:25 AM.. Reason: code tags, please...

Abhinav Tyagi

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LEARN ABOUT PHP

mb_eregi_replace

MB_EREGI_REPLACE(3)							 1						       MB_EREGI_REPLACE(3)

mb_eregi_replace - Replace regular expression with multibyte support ignoring case

SYNOPSIS

       string mb_eregi_replace (string	$pattern, string  $replace, string  $string, [string  $option = "msri"])

DESCRIPTION

	Scans $string for matches to $pattern, then replaces the matched text with $replacement.

PARAMETERS

	      o $pattern
		- The regular expression pattern. Multibyte characters may be used. The case will be ignored.

	      o $replace
		- The replacement text.

	      o $string
		- The searched string.

	      o $option
		-$option has the same meaning as in mb_ereg_replace(3).

RETURN VALUES

	The resultant string or FALSE on error.

NOTES

       Note

	      The  internal  encoding  or the character encoding specified by mb_regex_encoding(3) will be used as the character encoding for this
	      function.

       Warning

	      Never use the e modifier when working on untrusted input. No automatic escaping will happen (as  known  from  preg_replace(3)).  Not
	      taking care of this will most likely create remote code execution vulnerabilities in your application.

SEE ALSO

       mb_regex_encoding(3), mb_ereg_replace(3).

PHP Documentation Group 												       MB_EREGI_REPLACE(3)

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