12-14-2011
Permissions question
1. The problem statement, all variables and given/known data:
Don't understand this problem: The question is the unix command chmod 754 file3 would yield the same permissions as:
I put: chmod u=rwx, g=rx, o=r file3
correct answer was : chmod u+rwx, g=rx, o=r file3
I guess im asking for what does the "+" mean and what the difference to why this is wrong.
2. Relevant commands, code, scripts, algorithms:
chmod
3. The attempts at a solution (include all code and scripts):
test question wrong
4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
FSU, Tallahassee, FL, USA, Prof. Rob, COP 3353
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LEARN ABOUT PHP
pharfileinfo.chmod
PHARFILEINFO.CHMOD(3) 1 PHARFILEINFO.CHMOD(3)
PharFileInfo::chmod - Sets file-specific permission bits
SYNOPSIS
public void PharFileInfo::chmod (int $permissions)
DESCRIPTION
PharFileInfo.chmod(3) allows setting of the executable file permissions bit, as well as read-only bits. Writeable bits are ignored, and set
at runtime based on the phar.readonly INI variable. As with all functionality that modifies the contents of a phar, the phar.readonly INI
variable must be off in order to succeed if the file is within a Phar archive. Files within PharData archives do not have this restriction.
PARAMETERS
o $permissions
- permissions (see chmod(3))
RETURN VALUES
No value is returned.
EXAMPLES
Example #1
A PharFileInfo.chmod(3) example
<?php
// make sure it doesn't exist
@unlink('brandnewphar.phar');
try {
$p = new Phar('brandnewphar.phar', 0, 'brandnewphar.phar');
$p['file.sh'] = '#!/usr/local/lib/php
<?php echo "hi"; ?>';
// set executable bit
$p['file.sh']->chmod(0555);
var_dump($p['file.sh']->isExecutable());
} catch (Exception $e) {
echo 'Could not create/modify phar: ', $e;
}
?>
The above example will output:
bool(true)
PHP Documentation Group PHARFILEINFO.CHMOD(3)