Sponsored Content
Top Forums Shell Programming and Scripting How to replace value in fstab file? Post 303026279 by chakrapani on Friday 23rd of November 2018 08:58:03 AM
Old 11-23-2018
May be add few steps like take a backup of file. and validate file.

First to make backup
Code:
[ ! -d "/root/fstab_backup" ] && mkdir /root/fstab_backup
cat /etc/fstab > /root/fstab_backup/fstab.${date +%j_%y}.BACKUP

Now to test it
Code:
mount -fav

Just make sure to check man pages on system to validate. Also run each command by itself and validate.
 

10 More Discussions You Might Find Interesting

1. Linux

/etc/fstab

I've created a new drive and i've added it to my fstab file but on startup it will not mount. here is how i put it into my fstab file, is that right? /dev/hdb2 /disk2a ext3 defaults 1 2 (6 Replies)
Discussion started by: byblyk
6 Replies

2. UNIX for Dummies Questions & Answers

fstab question

Folks; Please be patient with this issue when you read it. I know it's a little tricky. I have a new share created on my SUSE 10 box. I'm trying to edit the /etc/fstab file or find a way to make this share needs no authentication. The reason for that is we're using an outside application to... (3 Replies)
Discussion started by: Katkota
3 Replies

3. UNIX for Dummies Questions & Answers

FSTAB Problem

Hello, I transferred a machine from a tape back into a virtual machine. I created several paritions so I could xfter the date into them and made sda1 the active one. When I try and boot the VM it does not work. I used KNOPPIX to create the partitions and transfer the information from the tape... (1 Reply)
Discussion started by: mojoman
1 Replies

4. Red Hat

edit/write the /etc/fstab file

Hi, I comment out some vol group in fstab accidentally. I also comment the swap space in /etc/fstab But I cannot edit /remove it back by using vi /etc/fstab again in init 1 and init 6 . The file system /etc/fstab is read -only . I cannot chmod ..... What can I do in order to recover it ... (2 Replies)
Discussion started by: chuikingman
2 Replies

5. UNIX for Dummies Questions & Answers

fstab

hi , i'm creating a shell script using fstab for my project of last year, i wonder you can help me to know what is the command allow me to get the list of unmounted partitions. thanks (4 Replies)
Discussion started by: Linux001
4 Replies

6. Ubuntu

fstab question

I have created a thumbdrive with a bootable version of Ubuntu 10.04 LTS, it uses Grub legacy. One of the issues I have is that everytime I boot a new system from the thumbdrive, it writes entries for the partitions in the fstab. Consequently, when I boot another system, the OS reads the fstab... (2 Replies)
Discussion started by: stumpyuk
2 Replies

7. Red Hat

Effects of /etc/fstab file!

Hi Folks! I accidentally overwrote in /etc/fstab file. Can you guys please tell me, what impact it would have created, when I restarted the machine(RHEL6). I executed this command : # blkid /dev/vda5 > /etc/fstab (17 Replies)
Discussion started by: nixhead
17 Replies

8. Red Hat

Mount /etc/fstab

Can you please help me mount below filesystem in fstab ( I have rhel 5 ) as the line is long - it is not taking as single line How can break this in 2 line and act as one ....please help ... (4 Replies)
Discussion started by: saurabh84g
4 Replies

9. Linux

/etc/fstab entries

Hi, Can anyone explain why we use defaults 0 0 in fstab and what does 0 inidicate 10.250.104.50:/home/u /home/u nfs defaults 0 0 Thanks in advance Muzaffar (3 Replies)
Discussion started by: muzaffar.k
3 Replies

10. Ubuntu

Create zip file from root owned fstab

I want to zip up my fstab file for backup purposes. This does not work because of permission issues. cd /etc/ zip -u fstab.zip fstab Can I use this with zip? echo xxx | sudo -S or change fstab owner to me? (3 Replies)
Discussion started by: drew77
3 Replies
TDBBACKUP(8)						    System Administration tools 					      TDBBACKUP(8)

NAME
tdbbackup - tool for backing up and for validating the integrity of samba .tdb files SYNOPSIS
tdbbackup [-s suffix] [-v] [-h] DESCRIPTION
This tool is part of the samba(1) suite. tdbbackup is a tool that may be used to backup samba .tdb files. This tool may also be used to verify the integrity of the .tdb files prior to samba startup or during normal operation. If it finds file damage and it finds a prior backup the backup file will be restored. OPTIONS
-h Get help information. -s suffix The -s option allows the adminisistrator to specify a file backup extension. This way it is possible to keep a history of tdb backup files by using a new suffix for each backup. -v The -v will check the database for damages (currupt data) which if detected causes the backup to be restored. COMMANDS
GENERAL INFORMATION The tdbbackup utility can safely be run at any time. It was designed so that it can be used at any time to validate the integrity of tdb files, even during Samba operation. Typical usage for the command will be: tdbbackup [-s suffix] *.tdb Before restarting samba the following command may be run to validate .tdb files: tdbbackup -v [-s suffix] *.tdb Samba .tdb files are stored in various locations, be sure to run backup all .tdb file on the system. Important files includes: o secrets.tdb - usual location is in the /usr/local/samba/private directory, or on some systems in /etc/samba. o passdb.tdb - usual location is in the /usr/local/samba/private directory, or on some systems in /etc/samba. o *.tdb located in the /usr/local/samba/var directory or on some systems in the /var/cache or /var/lib/samba directories. VERSION
This man page is correct for version 3 of the Samba suite. AUTHOR
The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed. The tdbbackup man page was written by John H Terpstra. Samba 3.5 06/18/2010 TDBBACKUP(8)
All times are GMT -4. The time now is 12:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy