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Top Forums Shell Programming and Scripting Use parameter expansion over a parameter expansion in bash. Post 303043417 by wisecracker on Tuesday 28th of January 2020 10:53:10 AM
Old 01-28-2020
Hi nez...
I do not like 'eval' but here goes and is also 'dash' compliant...
Code:
Last login: Tue Jan 28 14:17:35 on ttys000
AMIGA:amiga~> dash
AMIGA:\u\w> path="/var/talend/nat/cdc"
AMIGA:\u\w> path=$( eval path=${path%/*} && echo ${_##*/} )
AMIGA:\u\w> echo "${path}"
nat
AMIGA:\u\w> exit
AMIGA:amiga~> _

 

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DIRNAME(3)								 1								DIRNAME(3)

dirname - Returns parent directory's path

SYNOPSIS
string dirname (string $path) DESCRIPTION
Given a string containing the path of a file or directory, this function will return the parent directory's path. PARAMETERS
o $path - A path. On Windows, both slash ( /) and backslash ( ) are used as directory separator character. In other environments, it is the forward slash ( /). RETURN VALUES
Returns the path of the parent directory. If there are no slashes in $path, a dot (' .') is returned, indicating the current directory. Otherwise, the returned string is $path with any trailing /component removed. CHANGELOG
+--------+-------------------------------+ |Version | | | | | | | Description | | | | +--------+-------------------------------+ | 5.0.0 | | | | | | | dirname(3) is now binary safe | | | | +--------+-------------------------------+ EXAMPLES
Example #1 dirname(3) example <?php echo "1) " . dirname("/etc/passwd") . PHP_EOL; // 1) /etc echo "2) " . dirname("/etc/") . PHP_EOL; // 2) / (or on Windows) echo "3) " . dirname("."); // 3) . ?> NOTES
Note dirname(3) operates naively on the input string, and is not aware of the actual filesystem, or path components such as " ..". Note dirname(3) is locale aware, so for it to see the correct directory name with multibyte character paths, the matching locale must be set using the setlocale(3) function. Note Since PHP 4.3.0, you will often get a slash or a dot back from dirname(3) in situations where the older functionality would have given you the empty string. Check the following change example: <?php //before PHP 4.3.0 dirname('c:/'); // returned '.' //after PHP 4.3.0 dirname('c:/x'); // returns 'c:' dirname('c:/Temp/x'); // returns 'c:/Temp' dirname('/x'); // returns '' ?> SEE ALSO
basename(3), pathinfo(3), realpath(3). PHP Documentation Group DIRNAME(3)
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