Sponsored Content
Full Discussion: Apply file permission
Top Forums Shell Programming and Scripting Apply file permission Post 302661261 by alister on Monday 25th of June 2012 05:37:45 AM
Old 06-25-2012
Quote:
Originally Posted by itkamaraj
Code:
stat -c '%a' filename.txt

stat(1) varies a great deal from one implementation to another (e.g., BSD stat has no -c option, some other systems don't even have the utility at all).

Your suggestion is GNU stat. If GNU stat is available, then the system has GNU chmod (they're both part of GNU coreutils), in which case the task is most easily accomplished with chmod --reference f1 f2

If portability is mandatory, then something unfortunately complex, like jayan_jay's suggestion, may be required.

Regards,
Alister

Last edited by alister; 06-25-2012 at 06:51 AM..
 

10 More Discussions You Might Find Interesting

1. Programming

Apply patch for make file.

I just downloaded a updating make file to build Ethereal to .dll file, but I don't know how to update the old make file with this new one. Please help.. thnx a lot. (1 Reply)
Discussion started by: blueblood
1 Replies

2. Cybersecurity

file permission/acl: 2 users with write access on 1 file...

Hello, i need some help/advice on how to solve a particular problem. these are the users: |name | group | ---------- --------------- |boss | department1 | |assistant | department1 | |employee | department1 | |spy | department2 | this is the... (0 Replies)
Discussion started by: elzalem
0 Replies

3. Shell Programming and Scripting

Apply Password to already Written XLS File.

I need to apply password protection to a xls file.I had looked at SpreadSheet::WriteExcel but problem being i dont want to write the contents of file again as the formatting the file would be a pain. Is there way in which i write a entire file in one go , something like this ... (0 Replies)
Discussion started by: dinjo_jo
0 Replies

4. Shell Programming and Scripting

Re-apply the file permission

Hi, I having an issue with file permission. To fix it I need to read the file's existing permission and re-apply the same permission to the file. This has to be done for every single file under a mount point. I'm novice in scripting. Help me with this in shell scripting. # ls -l /dev/null... (10 Replies)
Discussion started by: agent001
10 Replies

5. UNIX for Dummies Questions & Answers

Do UNIX Permission apply to sub directories?

Hi Guys, Can you tell me if unix permissions apply to sub dirs? Dir is /home/ops/batch/files/all /home is rwxrwxrwx ops is rwxrwxrwx batch is rwxr-wr-w files is rwxrwxrwx all is rwxrwxrwx Having problems writing to all (does the userid nee to be the batch owner... (1 Reply)
Discussion started by: Grueben
1 Replies

6. Shell Programming and Scripting

Apply condition on fixed width file and filter records

Dear members.. I have a fixed width file. Requirement is as below:- 1. Scan each record from this fixed width file 2. Check for value under field no "6" equals to "ABC". If yes, then filter this record into the output file Please suggest a unix command to achieve this, my guess awk might... (6 Replies)
Discussion started by: sureshg_sampat
6 Replies

7. Shell Programming and Scripting

Finding the directories with same permission and then apply some default UNIX commands

HI there. My teacher asked us to write a code for this question Write a Unix shell script named 'mode' that accepts two or more arguments, a file mode, a command and an optional list of parameters and performs the given command with the optional parameters on all files with that given mode. ... (1 Reply)
Discussion started by: femchi
1 Replies

8. Homework & Coursework Questions

Finding the directories with same permission and then apply some default UNIX commands

Write a Unix shell script named 'mode' that accepts two or more arguments, a file mode, a command and an optional list of parameters and performs the given command with the optional parameters on all files with that given mode. For example, mode 644 ls -l should perform the command ls -l on all... (5 Replies)
Discussion started by: femchi
5 Replies

9. Shell Programming and Scripting

Apply md5 hash to a field in csv file

I have a .csv file and I want to md5 hash the second column for each row in the file. File is something like data1,foobar1,123,345 data2,foobar2,456,9393 data3,foobar3,1002,10109 Output would be like data1,6c81243028f8e455fa617dd5f0232ce1,123,345... (3 Replies)
Discussion started by: jjwags
3 Replies

10. Shell Programming and Scripting

Bash to select text and apply it to a selected file in bash

In the bash below I am asking the user for a panel and reading that into bed. Then asking the user for a file and reading that into file1.Is the grep in bold the correct way to apply the selected panel to the file? I am getting a syntax error. Thank you :) ... (4 Replies)
Discussion started by: cmccabe
4 Replies
STAT(3) 								 1								   STAT(3)

stat - Gives information about a file

SYNOPSIS
array stat (string $filename) DESCRIPTION
Gathers the statistics of the file named by $filename. If $filename is a symbolic link, statistics are from the file itself, not the sym- link. lstat(3) is identical to stat(3) except it would instead be based off the symlinks status. PARAMETERS
o $filename - Path to the file. RETURN VALUES
stat(3) and fstat(3) result format +--------+--------------------------------------+---+ |Numeric | | | | | | | | | Associative | | | | | | | | Description | | | | | | +--------+--------------------------------------+---+ | 0 | | | | | | | | | dev | | | | | | | | device number | | | | | | | 1 | | | | | | | | | ino | | | | | | | | inode number * | | | | | | | 2 | | | | | | | | | mode | | | | | | | | inode protection mode | | | | | | | 3 | | | | | | | | | nlink | | | | | | | | number of links | | | | | | | 4 | | | | | | | | | uid | | | | | | | | userid of owner * | | | | | | | 5 | | | | | | | | | gid | | | | | | | | groupid of owner * | | | | | | | 6 | | | | | | | | | rdev | | | | | | | | device type, if inode device | | | | | | | 7 | | | | | | | | | size | | | | | | | | size in bytes | | | | | | | 8 | | | | | | | | | atime | | | | | | | | time of last access (Unix timestamp) | | | | | | | 9 | | | | | | | | | mtime | | | | | | | | time of last modification (Unix | | | | timestamp) | | | | | | | 10 | | | | | | | | | ctime | | | | | | | | time of last inode change (Unix | | | | timestamp) | | | | | | | 11 | | | | | | | | | blksize | | | | | | | | blocksize of filesystem IO ** | | | | | | | 12 | | | | | | | | | blocks | | | | | | | | number of 512-byte blocks allocated | | | | ** | | | | | | +--------+--------------------------------------+---+ * On Windows this will always be 0. ** Only valid on systems supporting the st_blksize type - other systems (e.g. Windows) return -1. In case of error, stat(3) returns FALSE. Note Because PHP's integer type is signed and many platforms use 32bit integers, some filesystem functions may return unexpected results for files which are larger than 2GB. ERRORS
/EXCEPTIONS Upon failure, an E_WARNING is emitted. EXAMPLES
Example #1 stat(3) example <?php /* Get file stat */ $stat = stat('C:phpphp.exe'); /* * Print file access time, this is the same * as calling fileatime() */ echo 'Access time: ' . $stat['atime']; /* * Print file modification time, this is the * same as calling filemtime() */ echo 'Modification time: ' . $stat['mtime']; /* Print the device number */ echo 'Device number: ' . $stat['dev']; ?> Example #2 Using stat(3) information together with touch(3) <?php /* Get file stat */ $stat = stat('C:phpphp.exe'); /* Did we failed to get stat information? */ if (!$stat) { echo 'stat() call failed...'; } else { /* * We want the access time to be 1 week * after the current access time. */ $atime = $stat['atime'] + 604800; /* Touch the file */ if (!touch('some_file.txt', time(), $atime)) { echo 'Failed to touch file...'; } else { echo 'touch() returned success...'; } } ?> NOTES
Note Note that time resolution may differ from one file system to another. Note The results of this function are cached. See clearstatcache(3) for more details. Tip As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to "Supported Protocols and Wrappers" to determine which wrappers support stat(3) family of functionality. SEE ALSO
lstat(3), fstat(3), filemtime(3), filegroup(3). PHP Documentation Group STAT(3)
All times are GMT -4. The time now is 09:32 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy