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Full Discussion: How to replace string in variable?
Top Forums Shell Programming and Scripting How to replace string in variable? Post 303032623 by RudiC on Thursday 21st of March 2019 05:10:55 AM
Old 03-21-2019
It's a bit surprising that you refuse to learn and prefer

Code:
name2=$COL2
echo $name2 | sed "s|_| |g" - > variable
name=$(cat variable)

to
Code:
name=${COL2//_/ }

which would use shell internals only and save
- a FIFO creation
- two process creations
- two file operations


EDIT: admittedly, your latest solution name2=`echo $COL2 | sed "s|_| |g" ` is better than the above cited, but still is more resource intensive (still two processes and a FIFO) than the pure shell solution. Please be aware that the backticks method `...` is deprecated and should be replaced by $(...).
Last edited by RudiC; 03-21-2019 at 06:21 AM..
This User Gave Thanks to RudiC For This Post:
baris35
 

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LEARN ABOUT PHP

imap_createmailbox

IMAP_CREATEMAILBOX(3)							 1						     IMAP_CREATEMAILBOX(3)

imap_createmailbox - Create a new mailbox

SYNOPSIS

       bool imap_createmailbox (resource  $imap_stream, string	$mailbox)

DESCRIPTION

	Creates a new mailbox specified by $mailbox.

PARAMETERS

	      o $
		imap_stream -An IMAP stream returned by imap_open(3).

	      o $mailbox
		-  The	mailbox  name,	see  imap_open(3)  for	more  information.  Names containing international characters should be encoded by
		imap_utf7_encode(3)

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      imap_createmailbox(3) example

	      <?php
	      $mbox = imap_open("{imap.example.org}", "username", "password", OP_HALFOPEN)
		   or die("can't connect: " . imap_last_error());

	      $name1 = "phpnewbox";
	      $name2 = imap_utf7_encode("phpnewbox"); // phpnewb&w7Y-x

	      $newname = $name1;

	      echo "Newname will be '$name1'<br />
";

	      // we will now create a new mailbox "phptestbox" in your inbox folder,
	      // check its status after creation and finally remove it to restore
	      // your inbox to its initial state

	      if (@imap_createmailbox($mbox, imap_utf7_encode("{imap.example.org}INBOX.$newname"))) {
		  $status = @imap_status($mbox, "{imap.example.org}INBOX.$newname", SA_ALL);
		  if ($status) {
		      echo "your new mailbox '$name1' has the following status:<br />
";
		      echo "Messages:	" . $status->messages	 . "<br />
";
		      echo "Recent:	" . $status->recent	 . "<br />
";
		      echo "Unseen:	" . $status->unseen	 . "<br />
";
		      echo "UIDnext:	" . $status->uidnext	 . "<br />
";
		      echo "UIDvalidity:" . $status->uidvalidity . "<br />
";

		      if (imap_renamemailbox($mbox, "{imap.example.org}INBOX.$newname", "{imap.example.org}INBOX.$name2")) {
			  echo "renamed new mailbox from '$name1' to '$name2'<br />
";
			  $newname = $name2;
		      } else {
			  echo "imap_renamemailbox on new mailbox failed: " . imap_last_error() . "<br />
";
		      }
		  } else {
		      echo "imap_status on new mailbox failed: " . imap_last_error() . "<br />
";
		  }

		  if (@imap_deletemailbox($mbox, "{imap.example.org}INBOX.$newname")) {
		      echo "new mailbox removed to restore initial state<br />
";
		  } else {
		      echo "imap_deletemailbox on new mailbox failed: " . implode("<br />
", imap_errors()) . "<br />
";
		  }

	      } else {
		  echo "could not create new mailbox: " . implode("<br />
", imap_errors()) . "<br />
";
	      }

	      imap_close($mbox);
	      ?>

SEE ALSO

       imap_renamemailbox(3), imap_deletemailbox(3).

PHP Documentation Group 												     IMAP_CREATEMAILBOX(3)
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