Exec() Function And Shell Scripts
I have a shell script written that basically grabs a selected .jpg or .png image file and wraps it as an .swf file for use in a dynamic Flash site. My question is this: What are the limitations of the exec() or system() commands? I can get them to work just fine with common linux commands(ie. ls -l, pwd, etc.), but it won't run these sort of commands:
./thisisascirptname
or
sh wrapper.sh
I get no results with these and yet when I perform the same operation on the command line by hand, it works just fine. This is the script I'm using to test it, by the way.
$lastline = exec("sh wrapper.sh", $all_output, $return_value);
print("<b>Last Line:</b><br>$lastline <p>
");
print("<b>All Output:</b><br>
");
for($index = 0; $index < count($all_output); $index++)
{
print("$all_output[$index] <br>
");
}
print("<br><br>
");
print("Return Value: $return_value<br>
");
The "ls" and other similar functions all return properly. I can't figure this out and it's driving me nuts. Any help?
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