The professional way to use chmod ? Post: 302960640

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Top Forums UNIX for Dummies Questions & Answers The professional way to use chmod ? Post 302960640 by omega3 on Wednesday 18th of November 2015 03:45:20 AM

11-18-2015

Registered User

The professional way to use chmod ?

Oracle Linux 6.4 with bash

Question from a beginner

To change permissions using chmod, I can use 2 methods. Since I don't know the terminology, I am calling them Method1 and Method2.
In the below example, both Method1 and Method2 do the same thing. Which one is you favourite method ?

# Giving execute privilege to the group

Method1.

Code:

$ touch file1.txt
	$
	$ ls -l file1.txt
	-rw-rw-r-- 1 ctms ctms 0 Nov 18 10:21 file1.txt
	$
	$ chmod g+x file1.txt

Method2.

Code:

$ touch file2.txt
	$
	$ ls -l file2.txt
	-rw-rw-r-- 1 ctms ctms 0 Nov 18 10:21 file2.txt
	$
	$ chmod 774 file2.txt
	$
	$ ls -l file2.txt
	-rwxrwxr-- 1 ctms ctms 0 Nov 18 10:21 file2.txt

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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)