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Full Discussion: Pattern to replace ^M and ^Y in a 4.2 AIX text file
Operating Systems AIX Pattern to replace ^M and ^Y in a 4.2 AIX text file Post 302316785 by Browser_ice on Saturday 16th of May 2009 03:14:41 PM
Old 05-16-2009
Question Pattern to replace ^M and ^Y in a 4.2 AIX text file
I have files on my AIX 4.2 client system where I need to do the following replacements below but have no clue how ? They are control characters (linefeed, chariage return, ...).


First, replace "^M^Y^M" with ^char_for_end_of_line
Then replace "^M" with " "
Trim all left spaces

In VI, my files contents look like this :

aaaa zzzzzzzzzzzzzzzzzzzzzz^M
zzzzzzzzzzzzzzzzzzzzzz^M
zzzzzzzzzzzzzzzzzzzz^M
^M
^Y^M
aaaa zzzzzzzzzzzzzzzzzzzzzz^M
zzzzzzzzzzzzzzzzzzzzzz^M
zzzzzzzzzzzzzzzzzzzz^M
^M
^Y^M
aaaa zzzzzzzzzzzzzzzzzzzzzz^M
zzzzzzzzzzzzzzzzzzzzzz^M
zzzzzzzzzzzzzzzzzzzz^M
^M
^Y^M
...

I want it to be:
aaaa zzzzzzzzzzzzzzzzzzzzzz zzzzzzzzzzzzzzzzzzzzzz zzzzzzzzzzzzzzzzzzzzzz
aaaa zzzzzzzzzzzzzzzzzzzzzz zzzzzzzzzzzzzzzzzzzzzz zzzzzzzzzzzzzzzzzzzzzz
aaaa zzzzzzzzzzzzzzzzzzzzzz zzzzzzzzzzzzzzzzzzzzzz zzzzzzzzzzzzzzzzzzzzzz
aaaa zzzzzzzzzzzzzzzzzzzzzz zzzzzzzzzzzzzzzzzzzzzz zzzzzzzzzzzzzzzzzzzzzz
aaaa zzzzzzzzzzzzzzzzzzzzzz zzzzzzzzzzzzzzzzzzzzzz zzzzzzzzzzzzzzzzzzzzzz
...

Nb of records is unknown.
'zzzzzz' can have any combinations of "(", ")", "'", """, ",", "[", "]", ".", ";" (in other words anything with printable characters)
 

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LEARN ABOUT PHP

str_ireplace

STR_IREPLACE(3) 							 1							   STR_IREPLACE(3)

str_ireplace - Case-insensitive version ofstr_replace(3).

SYNOPSIS

       mixed str_ireplace (mixed  $search, mixed  $replace, mixed  $subject, [int  &$count])

DESCRIPTION

	This  function	returns  a string or an array with all occurrences of $search in $subject (ignoring case) replaced with the given $replace
       value. If you don't need fancy replacing rules, you should generally use this function instead of preg_replace(3) with the i modifier.

PARAMETERS

	If $search and $replace are arrays, then str_ireplace(3) takes a value from each array and uses them to search and replace on $subject. If
       $replace  has  fewer  values  than  $search,  then  an  empty string is used for the rest of replacement values. If $search is an array and
       $replace is a string, then this replacement string is used for every value of $search. The converse would not make sense, though.

	If $search or $replace are arrays, their elements are processed first to last.

	      o $search
		- The value being searched for, otherwise known as the needle. An array may be used to designate multiple needles.

	      o $replace
		- The replacement value that replaces found $search values. An array may be used to designate multiple replacements.

	      o $subject
		- The string or array being searched and replaced on, otherwise known as the haystack.	If $subject is an array, then  the  search
		and replace is performed with every entry of $subject, and the return value is an array as well.

	      o $count
		- If passed, this will be set to the number of replacements performed.

RETURN VALUES

	Returns a string or an array of replacements.

EXAMPLES

       Example #1

	      str_ireplace(3) example

	      <?php
	      $bodytag = str_ireplace("%body%", "black", "<body text=%BODY%>");
	      ?>

NOTES

       Note

	      This function is binary-safe.

       Caution

	      Replacement order gotcha

	       Because	str_ireplace(3)  replaces  left  to  right, it might replace a previously inserted value when doing multiple replacements.
	      Example #2 in the str_replace(3) documentation demonstrates how this may affect you in practice.

SEE ALSO

       str_replace(3), preg_replace(3), strtr(3).

PHP Documentation Group 													   STR_IREPLACE(3)
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