06-27-2007
substring command works but only in BASH shell
I am having trouble running a .sh file. The code 'x=${file_name:0:$z-11}' is giving me a bad substitution error. However when I run in BASH it works. Thing is when this goes to production the .sh will not be running in BASH. Is there a way to substring a string not in BASH or a way to invoke BASH and still run the .sh without any pauses. Thanks!
file_name="12366293address.txt"
#Grabs length of file_name string
z=${#file_name}
#Substrings file_name
x=${file_name:0:$z-11}
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LEARN ABOUT PHP
finfo_file
FINFO_FILE(3) 1 FINFO_FILE(3)
finfo_file - Return information about a file
Procedural style
SYNOPSIS
string finfo_file NULL NULL (resource $finfo, string $file_name, [int $options = FILEINFO_NONE], [resource $context])
DESCRIPTION
Object oriented style string finfo::file NULL NULL (string $file_name, [int $options = FILEINFO_NONE], [resource $context])
This function is used to get information about a file.
PARAMETERS
o $finfo
- Fileinfo resource returned by finfo_open(3).
o $file_name
- Name of a file to be checked.
o $options
- One or disjunction of more Fileinfo constants.
o $context
- For a description of contexts, refer to "Stream Functions".
RETURN VALUES
Returns a textual description of the contents of the $file_name argument, or FALSE if an error occurred.
EXAMPLES
Example #1
A finfo_file(3) example
<?php
$finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type ala mimetype extension
foreach (glob("*") as $filename) {
echo finfo_file($finfo, $filename) . "
";
}
finfo_close($finfo);
?>
The above example will output something similar to:
text/html
image/gif
application/vnd.ms-excel
SEE ALSO
finfo_buffer(3).
PHP Documentation Group FINFO_FILE(3)