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Full Discussion: Problem with the shell script for understanding
Top Forums Shell Programming and Scripting Problem with the shell script for understanding Post 302505977 by ctsgnb on Friday 18th of March 2011 06:45:55 AM
Old 03-18-2011
This is because - i guess - you did a typo error :

instead of
Code:
echo $str | sed 's/.*\\//'

i guess in your script you have
Code:
echo $str | sed 's/.*\///'

by the way instead of
Code:
echo $str | sed 's/.*\///'

you'd better have something like
Code:
echo ${str##*/}

or even directly
Code:
echo ${@##*/}

---------- Post updated at 11:45 AM ---------- Previous update was at 11:35 AM ----------

... oooops i correct what i stated above : the ${@##*/} substitution didn't work ...(ksh)
you should keep with the str intermediate variable

Code:
# echo /whaterver/tree/or/path/here/sand
/whaterver/tree/or/path/here/sand
# set -- $(echo /whaterver/tree/or/path/here/sand)
# echo $@
/whaterver/tree/or/path/here/sand
# echo ${@##*/}
ksh: : bad substitution
# str=$@
# echo ${str##*/}
sand
#

 

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LEARN ABOUT PHP

substr_compare

SUBSTR_COMPARE(3)							 1							 SUBSTR_COMPARE(3)

substr_compare - Binary safe comparison of two strings from an offset, up to length characters

SYNOPSIS

       int substr_compare (string  $main_str, string  $str, int  $offset, [int	$length], [bool  $case_insensitivity = false])

DESCRIPTION

       substr_compare(3) compares $main_str from position $offset with $str up to $length characters.

PARAMETERS

	      o $main_str
		- The main string being compared.

	      o $str
		- The secondary string being compared.

	      o $offset
		- The start position for the comparison. If negative, it starts counting from the end of the string.

	      o $length
		-  The	length	of  the comparison. The default value is the largest of the length of the $str compared to the length of $main_str
		less the $offset.

	      o $case_insensitivity
		- If $case_insensitivity is TRUE, comparison is case insensitive.

RETURN VALUES

	Returns < 0 if $main_str from position $offset is less than $str, > 0 if it is greater than $str, and 0 if they are equal. If  $offset	is
       equal  to  or greater than the length of $main_str, or the $length is set and is less than 1 (prior to PHP 5.6), substr_compare(3) prints a
       warning and returns FALSE.

CHANGELOG

       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       | 5.6.0	|						    |
       |	|						    |
       |	|		$length may now be 0.		    |
       |	|						    |
       | 5.1.0	|						    |
       |	|						    |
       |	|  Added the possibility to use a negative $offset. |
       |	|						    |
       +--------+---------------------------------------------------+
EXAMPLES

       Example #1

	      A substr_compare(3) example

	      <?php
	      echo substr_compare("abcde", "bc", 1, 2); // 0
	      echo substr_compare("abcde", "de", -2, 2); // 0
	      echo substr_compare("abcde", "bcg", 1, 2); // 0
	      echo substr_compare("abcde", "BC", 1, 2, true); // 0
	      echo substr_compare("abcde", "bc", 1, 3); // 1
	      echo substr_compare("abcde", "cd", 1, 2); // -1
	      echo substr_compare("abcde", "abc", 5, 1); // warning
	      ?>

SEE ALSO

       strncmp(3).

PHP Documentation Group 													 SUBSTR_COMPARE(3)
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