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Full Discussion: How to insert a space and assign the value to another variable?
Top Forums Shell Programming and Scripting How to insert a space and assign the value to another variable? Post 302923577 by prvnrk on Monday 3rd of November 2014 04:09:35 PM
Old 11-03-2014
How to insert a space and assign the value to another variable?
Hello,

I need to insert a space between 2 strings. I used many techniques and all of them worked but when I assign the value to another variable then the inserted space vanishes, strange! Please advise.

Code:
# dat=`date |awk '{print $2,$3}'`
# echo $dat
Nov 3

The above is perfectly fine. Now

Code:
# echo ${dat}|sed "s/ /  /g"
Nov  3
#

The above also is perfectly fine. Now if I assign the same output to another variable the extra space vanished.

Code:
# dat2=`echo ${dat}|sed "s/ /  /g"`
# echo $dat2
Nov 3
#

Please advise how to retain the extra space in the new variable. Sorry if its a basic question but I never noticed such things.

TIA
 

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LEARN ABOUT PHP

getrusage

GETRUSAGE(3)								 1							      GETRUSAGE(3)

getrusage - Gets the current resource usages

SYNOPSIS

       array getrusage ([int  $who])

DESCRIPTION

	This is an interface to getrusage(2). It gets data returned from the system call.

PARAMETERS

	      o $who
		- If $who is 1, getrusage will be called with RUSAGE_CHILDREN.

RETURN VALUES

	Returns an associative array containing the data returned from the system call. All entries are accessible by using their documented field
       names.

EXAMPLES

       Example #1

	      getrusage(3) example

	      <?php
	      $dat = getrusage();
	      echo $dat["ru_nswap"];	     // number of swaps
	      echo $dat["ru_majflt"];	     // number of page faults
	      echo $dat["ru_utime.tv_sec"];  // user time used (seconds)
	      echo $dat["ru_utime.tv_usec"]; // user time used (microseconds)
	      ?>

CHANGELOG

       +--------+---------------------------------------------+
       |Version |					      |
       |	|					      |
       |	|		  Description		      |
       |	|					      |
       +--------+---------------------------------------------+
       | 7.0.0	|					      |
       |	|					      |
       |	|  This function is now supported on Windows. |
       |	|					      |
       +--------+---------------------------------------------+
NOTES

       Note

	       On Windows getrusage(3) will only return the following members:

		     o "ru_stime.tv_sec"

		     o "ru_stime.tv_usec"

		     o "ru_utime.tv_sec"

		     o "ru_utime.tv_usec"

		     o "ru_majflt" (only if $who is RUSAGE_SELF)

		     o "ru_maxrss" (only if $who is RUSAGE_SELF)

	       If getrusage(3) is called with $who set to 1 ( RUSAGE_CHILDREN), then resource usage for threads are collected (meaning that inter-
	      nally the function is called with RUSAGE_THREAD).

       Note

	       on BeOS 2000, only the following members are returned:

		     o "ru_stime.tv_sec"

		     o "ru_stime.tv_usec"

		     o "ru_utime.tv_sec"

		     o "ru_utime.tv_usec"

SEE ALSO

       Your system's man page on getrusage(2).

PHP Documentation Group 													      GETRUSAGE(3)
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