[SOLVED] advanced shell script for mount and unmount samba share

Alexbit · 2010-09-22 07:02:19

Good morning guys,
Today I've a very long question....
Hope in your help....:

I usually move from different network.
For one of those I need to mount some share that are under an ActiveDirectory server.
To do that I use samba.
Especially I've made and use the below shell script.
I know that it's so stupid but I'm a very newbie:

#!/bin/sh
echo "This is a custom script for mount my citrix share"
echo "Please insert user password (must a sudoer user)"
echo " "
sudo mount -t cifs -o username='myusername',password='mypassword' //host_ip/TsHome$/myusername /home/myuser/samba_share/TsHOME
sudo mount -t cifs -o username='myusername',password='mypassword' "//host_ip/direction" /home/myuser/samba_share/direction
echo " "
read -p "Press ENTER key to close this terminal"
exit

As I say the script work but it's so crude...!
I want/need to implement it whit the follow addictions:

1. print a feedback on mount: somenthing like "TsHOME is now mounted" or "unable to mount TsHOME"
2. check if the share are already mounted: to prevent accidentally multiple mount. If a share is already mounted I want to print something like "TsHOME is already mounted on /home/myuser/samba_share/TsHOME"
3. ask for share password (now it's in clear on script) - This is optinal
4. un-mount the share before reboot or shutdown command. That because I've notice that If i reboot or shutdown without manually un-mount the share the step of unmounting network file system became very slow

If it's no extremely difficult, can someone help me to write this script?
I know that man exist but I'm not a programmer and it's so difficult for me approch it.
Thank you in advance.
Ale

Last edited by Alexbit (2010-09-23 21:29:13)

barto · 2010-09-22 10:55:12

Hello,

1. Examine the return values of the mount commands

sudo mount -t cifs -o username='myusername',password='mypassword' //host_ip/TsHome$/myusername /home/myuser/samba_share/TsHOME && echo "TsHOME is now mounted" || echo "unable to mount TsHOME"

2. Make the script look at /etc/mtab

if grep "TsHome" /etc/mtab &>/dev/null; then
    grep "TsHome" /etc/mtab | awk '{print "TsHome is already mounted on " $2}'
else
    [sudo mount ... whatever]
fi

3. read with -s option

read -s mypassword
sudo mount [...] password="$mypassword" [...]

4. Put the unmounting command to /etc/rc.local.shutdown with the conditional structure similar to that of point 2.

Good luck.

Alexbit · 2010-09-23 17:34:12

Thank you very (VERY) much!
I've follow your information and.. it work!

If can be usefull to other this is the complete script:

#!/bin/sh
echo "This is a custom script for mount citrix share"
echo "****************************************"
echo " "
echo "Please insert domain password:" 
read -s mypassword
echo " "
echo "|checking mount state...in share are not mounted mount it!|"
echo "+-------------------------------------------------------------------------+"

if grep "TsHome" /etc/mtab &>/dev/null; then
    grep "TsHome" /etc/mtab | awk '{print "TsHome is already mounted on " $2}'
else
    sudo mount -t cifs -o username='yourusername',password="$mypassword" //ipaddress/TsHome$ /home/Samba_share/TsHOME && echo "TsHOME is now mounted" || echo "unable to mount TsHOME"
fi
echo " "
if grep "direction" /etc/mtab &>/dev/null; then
    grep "direction" /etc/mtab | awk '{print "direction is already mounted on " $2}'
else
    sudo mount -t cifs -o username='yourusername',password="$mypassword" '//ipaddress/direction' /home/Samba_share/direction' && echo "direction pat is now mounted" || echo "unable to mount direction"
fi
echo " "
if grep "Area" /etc/mtab &>/dev/null; then
    grep "Area" /etc/mtab | awk '{print "Area is already mounted on " $2}'
else
    sudo mount -t cifs -o username='yourusername',password="$mypassword" '//ipaddress/Area' /home/Samba_share/Area && echo "Area is now mounted" || echo "unable to mount Area"
fi
echo " "
echo "All DONE!"
echo " "
read -p "Press ENTER key to close this terminal"
exit

I don't really well understand what I've to put in rc.local.shutdown....
I think somethings like:

#!/bin/bash
#
# /etc/rc.local.shutdown: Local shutdown script.
#

echo "This is a custom script for UN-mount citrix share"
echo "********************************************"
echo " "
echo "|check mount state: if mount then un-mount!|"
echo "+-------------------------------------------------------+"
echo " "
if grep "TsHome" /etc/mtab &>/dev/null; then
    grep "TsHome" /etc/mtab | awk '{print "TsHome is NOT mounted -> going on..." $2}'
else
    sudo umount /home/Samba_share/TsHOME && echo "TsHOME is now UN mounted" || echo "unable to UN-mount TsHOME"
fi
echo " "
if grep "direction" /etc/mtab &>/dev/null; then
    grep "direction" /etc/mtab | awk '{print "direction is NOT mounted -> going on.." $2}'
else
    sudo umount /home/Samba_share/direction && echo "direction is now UN mounted" || echo "unable to UN-mount direction pat"
fi
echo " "
if grep "Area" /etc/mtab &>/dev/null; then
    grep "Area" /etc/mtab | awk '{print "Area is NOT mounted - Finished" $2}'
else
    sudo umount /home/Samba_share/Area && echo "Area is now UN mounted" || echo "unable to UN-mount Area"
fi
echo " "
echo "going shutdown"
echo " "
sleep 5

I've try but it seems to ignore the IF statement... this is the output when ALL share are UNmounted:

$ sh /etc/rc.local.shutdown
This is a custom script for UN-mount citrix share
********************************************
 
|check mount state: if mount then un-mount!|
+-------------------------------------------------------+
 
umount: /home/Samba_share/TsHOME: not mounted
unable to UN-mount TsHOME
 
umount: /home/Samba_share/direction: not mounted
unable to UN-mount direction
 
umount: /home/Samba_share/Area: not mounted
unable to UN-mount Area
 
going shutdown

Tomorrow I will test again when I'm at office.
Meanwhile can you check if I made a macroscopic mistakes?
Thank you again!

Last edited by Alexbit (2010-09-23 17:34:49)

skanky · 2010-09-23 19:32:02

Your if statements are the wrong way round in rc.shutdown.
Also, you can ditch the grep & awk in those ones and use echo.

if grep "TsHome" /etc/mtab &>/dev/null; then
    sudo umount etc.....
else
    echo "TsHome not mounted..."
fi

Last edited by skanky (2010-09-23 19:32:20)

Alexbit · 2010-09-23 20:21:31

YES!Just modded the shudown script!
This is the output:

$ sh /etc/rc.local.shutdown
 
This is a custom script for UN-mount citrix share
********************************************
 
|..:: Check mount state: if mount then un-mount! ::..|
 
 
TsHome is NOT mounted -> going on...
 
direction is NOT mounted -> going on..
 
Area is NOT mounted - Finished
 
...continue shutdown in 5 seconds

Now, in my simulation scenario seems to work!
As I say, tomorrow I'll check in a real environment!

Last time question:
rc.local.shutdown is called over a reboot or only on shutdown?

For now....
Thank you ALL!

barto · 2010-09-23 20:32:42

Yes, as stated above.
The grep + awk pipeline was for getting the mount point, which has no sense in this case.
rc.local.shutdown is called at reboot too.

Arch Linux

#1 2010-09-22 07:02:19

[SOLVED] advanced shell script for mount and unmount samba share

#2 2010-09-22 10:55:12

Re: [SOLVED] advanced shell script for mount and unmount samba share

#3 2010-09-23 17:34:12

Re: [SOLVED] advanced shell script for mount and unmount samba share

#4 2010-09-23 19:32:02

Re: [SOLVED] advanced shell script for mount and unmount samba share

#5 2010-09-23 20:21:31

Re: [SOLVED] advanced shell script for mount and unmount samba share

#6 2010-09-23 20:32:42

Re: [SOLVED] advanced shell script for mount and unmount samba share

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