Sponsored Content
Operating Systems Solaris What is /dev/tty /dev/null and /dev/console Post 302155305 by reborg on Thursday 3rd of January 2008 02:03:52 PM
Old 01-03-2008
Quote:
Originally Posted by jlliagre
Actually not. Changing permissions on a symlink affect the target, not the link, so the chmod would have disastrous effects.
Note, I did not say running chmod on the link, I said chaning the permissions of the link and was speaking hypotetically. Running chmod on the link would as you said change the file, but there would still be no effect on the link itself: it would still be 777. The point being that changing the link is a pointless exercise, the actual target should be modified directly if this is required for some reason, but I cannot see a reason for changing any of the ones suggested.
 

10 More Discussions You Might Find Interesting

1. Programming

sniff /dev/tty

hello all, Being root, I would like to log user activity (also multiple root activity), i don't really like history file based logging, lets assume that users have access to their .profile. I would like to write a monitoring daemon in C that would capture /dev/ttys, so I need to do a... (0 Replies)
Discussion started by: wayward
0 Replies

2. UNIX for Dummies Questions & Answers

/dev/null 2>&1 Versus /dev/null 2>1

How are these two different? They both prevent output and error from being displayed. I don't see the use of the "&" echo "hello" > /dev/null 2>&1 echo "hello" > /dev/null 2>1 (3 Replies)
Discussion started by: glev2005
3 Replies

3. UNIX for Dummies Questions & Answers

Reading password from /dev/tty

hi, From the below script: ##########################################pwd_auth.sh######################################################################################## #Author: Pandeeswaran Bhoopathy #Written on:26th Jan 2012 2:00PM #This script describes the feature of stty and illustrates... (3 Replies)
Discussion started by: pandeesh
3 Replies

4. Shell Programming and Scripting

Redirecting standard out to /dev/null goes to file "/dev/null" instead

I apologize if this question has been answered else where or is too elementary. I ran across a KSH script (long unimportant story) that does this: if ; then CAS_SRC_LOG="/var/log/cas_src.log 2>&1" else CAS_SRC_LOG="/dev/null 2>&1" fithen does this: /usr/bin/echo "heartbeat:... (5 Replies)
Discussion started by: jbmorrisonjr
5 Replies

5. Solaris

Lun remove, stuck in /dev/dsk and /dev/rdsk

So, we removed a LUN from the SAN and the system is refusing to remove the references to it in the /dev folder. I've done the following: devfsadm -Cv powermt -q luxadm -e offline <drive path> luxadm probe All those commands failed to remove the path. The drive stills shows up as <drive... (13 Replies)
Discussion started by: DustinT
13 Replies

6. AIX

Difference between /dev/hdisk and /dev/rhdisk

Hi, How can i check that i am using RAW devices for storage in my AIX machine... Also after adding a LUN from storage to a aix host, when i check /dev in the host, i can see both rhdisk and hdisk with same number eg: dcback1(root):/dev>ls -lrt | grep disk12 crw------- 1 root ... (4 Replies)
Discussion started by: jibujacob
4 Replies

7. AIX

Problem in /dev/hd1 and /dev/hd9var

Hello AIXians, I can't boot my AIX, it hangs and stops at the code error: 0518 After searching google, I knew the problem is due to problems in File Systems. So the solution is booting from any bootable media, then run these commands in maintenance mode: #fsck -y /dev/hd4 #fsck -y... (3 Replies)
Discussion started by: Mohannad
3 Replies

8. Shell Programming and Scripting

Automating partitioning setup of /dev/sda on /dev/sdc

Objective: To recreate the partitioning setup of /dev/sda on /dev/sdc How would I parse the below information and initialize variables (an array?) that can be used to build sgdisk commands in a script, regardless of the number of partitions? Something along the lines of: sgdisk -n... (12 Replies)
Discussion started by: RogerBaran
12 Replies

9. Red Hat

Changing grub from /dev/sda to /dev/sdb

Hi, Please suggest steps to change grub from /dev/sda to /dev/sdb, (1 Reply)
Discussion started by: manoj.solaris
1 Replies

10. HP-UX

Dev/urandom and dev/random missing in HP-UX

Hi, In our HP-UX B.11.11. I could not find dev/urandom and dev/random Are all pseudo-devices implemented as device drivers, or in need to run /configure some package to install the package to have dev/urandom. Please help (4 Replies)
Discussion started by: rashi
4 Replies
set link(1m)															      set link(1m)

NAME
set link - Changes the value of a modifiable, single-valued attribute of a soft link SYNOPSIS
cdscp set link link-name attribute-name = attribute-value ARGUMENTS
The full name of the soft link. The name of the attribute to be modified. Specify only one attribute at a time. See Description for valid attribute names. The value of a particular attribute. DESCRIPTION
The set link command changes the value of a modifiable, single-valued attribute of a soft link. The following are valid attributes: Speci- fies the full name of the directory, object entry, or other soft link to which the soft link points. Specifies a timeout value after which the soft link is either checked or deleted. The timeout value contains both an expiration time and an extension time. If a soft link expires and its target entry is deleted, the soft link is deleted. If the soft link still points to an existing entry, its life is extended by the expiration time. Specify expiration-time in the format yyyy-mm-dd-hh:mm:ss (year-month-day-hour:minute:second). Specify extension- time in the format ddd-hh:mm:ss (day-hour:minute:second). Privilege Required You must have write permission to the soft link. NOTE
This command is replaced at Revision 1.1 by the dcecp command and may not be provided in future releases of DCE. EXAMPLE
The following command redirects a soft link named /.:/admin/work_disk from its current destination name, /.:/admin/work_disk01, to a new destination name, /.:/admin/work_disk03. cdscp> set link /.:/admin/work_disk CDS_LinkTarget = /.:/admin/work_disk03 RELATED INFORMATION
Commands: create link(1m), delete link(1m), list link(1m), show link(1m) set link(1m)
All times are GMT -4. The time now is 05:19 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy