Re: Using sudo in a script.
Ken Heard wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > On 2016-08-03 15:16, Jude DaShiell wrote: >> Why not try a -H switch on the sudo line in your script and see >> what happens? > > I did. The answer was nothing. why bother users run sudo commands when they can use the desktop functionality and transparently mount/umount whatever they attach to the system and is not in fstab
Re: Using sudo in a script.
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 2016-08-03 15:16, Jude DaShiell wrote: > Why not try a -H switch on the sudo line in your script and see > what happens? I did. The answer was nothing. Regards, Ken -BEGIN PGP SIGNATURE- Version: GnuPG v2 iEYEARECAAYFAleiYfsACgkQlNlJzOkJmTcD7wCbB/PgXclQY8xzuUAov+I37DaR 2qUAnj8XHWQADZzDmIyB6QopXDRsMYaO =6LWe -END PGP SIGNATURE-
Re: Using sudo in a script.
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 2016-08-03 12:21, Ken Heard wrote: > I would like to create a short script to mount and unmount SCXC > cards. For these exfat cards to do either in Jessie has to be done > as root. > > I have set up sudo so that my user can run any command as root. > the following command will mount the card without asking for my > password. > > sudo mount -U 6238-3434 /media/xca > > (My file /etc/fstab contains the following line: > > UUID-6238-3434 /media/xca exfat rw,users,noauto,noatime 0 > 0) > > In order to automate the process I wrote the following script named > mxca : > > #!/bin/bash # Script to mount xca from any directory. CURPWD=$PWD > cd /home/ken sudo mount -U 6238-3434 /media/xca cd $CURPWD > > Running mxca alone does not produce the required result. Running > sudo mxca together however does, even though the sudo command is > also in the script. > > I can unmount the card by running command sudo umount /media/xca, > but I would like a similar script named uxca to do the same thing > for unmounting. > > Is there a way to make sudo do its thing in these scripts so that > I can mount and unmount the SDXC card by running the script > commands mxca and uxca by themselves? I have since discovered a command "/sbin/mount.fuse" and "fusermount - -u" which are supposed to allow a non-privileged user to mount and unmount exfat devices; but I haven't figured out how to use them yet. A simple "/sbin/mount.fuse /media/xca" or "fusermount -u /media/xca" do not work. Other than fixing the format of the UUID device indicate from UUID- to UUID= I have yet to experiment with Don Armstrong's other suggestions. I thing I would rather get /sbin/mount.fuse and fusermount -u to work instead. Regards, Ken -BEGIN PGP SIGNATURE- Version: GnuPG v2 iEYEARECAAYFAleiYSoACgkQlNlJzOkJmTe4fwCcDvq8eBcq0I7guGdmmhN23sgP 3KEAn0LJKJzJUlIJTD0jMMt3T4CyXWAw =lclv -END PGP SIGNATURE-
Re: Using sudo in a script.
On Wed, 03 Aug 2016, Ken Heard wrote: > I would like to create a short script to mount and unmount SCXC cards. > For these exfat cards to do either in Jessie has to be done as root. > > I have set up sudo so that my user can run any command as root. the > following command will mount the card without asking for my password. > > sudo mount -U 6238-3434 /media/xca > > (My file /etc/fstab contains the following line: > > UUID-6238-3434 /media/xca exfat rw,users,noauto,noatime 0 0) This should probably be UUID=6238-3434 /media/xca exfat rw,users.noauto,noatime 0 0 and then in theory you should be able to go mount /media/xca as a user. If not, this sounds like a bug in mount.exfat. > In order to automate the process I wrote the following script named mxca > : > > #!/bin/bash > # Script to mount xca from any directory. > CURPWD=$PWD > cd /home/ken > sudo mount -U 6238-3434 /media/xca > cd $CURPWD First off, the cd in the script won't change what the directory is once the subshell started for the script exits. Second, if you need to change directories temporarily in a shell script, use a subshell: #!/bin/bash (cd /home/ken; sudo mount -U 6238-3434 /media/xca; ) > Is there a way to make sudo do its thing in these scripts so that I > can mount and unmount the SDXC card by running the script commands > mxca and uxca by themselves? It's possible that sudo doesn't have a tty, and can't ask for a password. adding set -x; early on in the script may help you see what is actually happening. -- Don Armstrong https://www.donarmstrong.com Those who begin coercive elimination of dissent soon find themselves exterminating dissenters. Compulsory unification of opinion achieves only the unanimity of the graveyard. -- Justice Roberts in 319 U.S. 624 (1943)
Using sudo in a script.
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I would like to create a short script to mount and unmount SCXC cards. For these exfat cards to do either in Jessie has to be done as root. I have set up sudo so that my user can run any command as root. the following command will mount the card without asking for my password. sudo mount -U 6238-3434 /media/xca (My file /etc/fstab contains the following line: UUID-6238-3434 /media/xca exfat rw,users,noauto,noatime 0 0) In order to automate the process I wrote the following script named mxca : #!/bin/bash # Script to mount xca from any directory. CURPWD=$PWD cd /home/ken sudo mount -U 6238-3434 /media/xca cd $CURPWD Running mxca alone does not produce the required result. Running sudo mxca together however does, even though the sudo command is also in the script. I can unmount the card by running command sudo umount /media/xca, but I would like a similar script named uxca to do the same thing for unmounting. Is there a way to make sudo do its thing in these scripts so that I can mount and unmount the SDXC card by running the script commands mxca and uxca by themselves? Regards, Ken Heard -BEGIN PGP SIGNATURE- Version: GnuPG v2 iEYEARECAAYFAleiGgQACgkQlNlJzOkJmTeE9ACfaJZ3Fk27+a9YPhHtk040cCpF D/QAnA7KuGGRMlkP3AIpHqUiTgtyaaq2 =cxii -END PGP SIGNATURE-
Re: using SUDO in bash script
Rick Weinbender wrote: Adam Aube wrote: On Wednesday 04 February 2004 03:23 pm, Rick Weinbender wrote: Can I use SUDO within a bash script? Absolutely, though be aware that if sudo is set to require a password, you won't be able to run it in the background. By putting NOPASSWD before the command in /etc/sudoers, sudo will not require a password to run that command. * Thanks. I'm new to SUDO, but I found a web clip that seems to be what I'm going for. Just can't make it work yet. Can I avoid typing sudo before myprogram at the commandline? Clip Below: * Clipped from article: The one disadvantage of using sudo is that your users have to remember to run sudo ... as part of their command. However, that's easy to work around by simply creating a wrapper shell script. This is a normal (non-SUID) shell script that simply does something like: `` #!/bin/sh exec /usr/bin/sudo /some/path/to/our/target/prog $@ '' (execute sudo, on the target program and pass our argument, preserving any quoting as we specified it). * Thanks, -Rick instead of writing a shellscript you could also use aliases in the bash shell (don't know if it works in other shells though). to have your aliases available all the time, you can but them in your .bashrc file in your $HOME directory (you will probably already find some aliases defined in there). example: $ alias ls='cd' doesn't make much sense, but shows you how it works: ls is now defined as an alias for cd. so if you type 'ls /home' bash will actually invoke 'cd /home' similar you could use: $ alias myprogram='sudo myprogram' to make bash invoke myprogram with SUDO hth #!mike -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: using SUDO in bash script
Michael Rauch wrote: instead of writing a shellscript you could also use aliases in the bash shell (don't know if it works in other shells though). to have your aliases available all the time, you can but them in your .bashrc file in your $HOME directory (you will probably already find some aliases defined in there). example: $ alias ls='cd' doesn't make much sense, but shows you how it works: ls is now defined as an alias for cd. so if you type 'ls /home' bash will actually invoke 'cd /home' And of course, if you try this experiment, you'll want to be aware of the unalias command. $ unalias ls will undo the above alias. $ alias will show you your current aliases. -- Kent -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: using SUDO in bash script
On Thu, Feb 05, 2004 at 01:41:43PM +0100, Michael Rauch wrote: Rick Weinbender wrote: Adam Aube wrote: On Wednesday 04 February 2004 03:23 pm, Rick Weinbender wrote: Can I use SUDO within a bash script? Absolutely, though be aware that if sudo is set to require a password, you won't be able to run it in the background. By putting NOPASSWD before the command in /etc/sudoers, sudo will not require a password to run that command. * Thanks. I'm new to SUDO, but I found a web clip that seems to be what I'm going for. Just can't make it work yet. Can I avoid typing sudo before myprogram at the commandline? Clip Below: * Clipped from article: The one disadvantage of using sudo is that your users have to remember to run sudo ... as part of their command. However, that's easy to work around by simply creating a wrapper shell script. This is a normal (non-SUID) shell script that simply does something like: `` #!/bin/sh exec /usr/bin/sudo /some/path/to/our/target/prog $@ '' (execute sudo, on the target program and pass our argument, preserving any quoting as we specified it). * This clip is what you want to do. Save that shell script as the program name to run, for example save it as sudoprog and give it executable permitions (chmod +x). When you users now run sudoprog it will run the shell script that will call the program using sudo. This will still ask for the password if sudo is setup to ask for a password (very recomended). Another option which is much less secure is to set the program setuid root which will make it run as the root even when a normal user runs it (it actually runs the program as the owner which in this case is root). you need to make it owned by root and then run chmod 04755 prog. This will give you no access control though so watch out. (you can also limit the access a bit using group limitation by doing chgrp prog group prog and then chmod 04750 prog) The advantage of sudo is that you can set a per user and per program access settings. Thanks, -Rick instead of writing a shellscript you could also use aliases in the bash shell (don't know if it works in other shells though). to have your aliases available all the time, you can but them in your .bashrc file in your $HOME directory (you will probably already find some aliases defined in there). example: $ alias ls='cd' doesn't make much sense, but shows you how it works: ls is now defined as an alias for cd. so if you type 'ls /home' bash will actually invoke 'cd /home' similar you could use: $ alias myprogram='sudo myprogram' to make bash invoke myprogram with SUDO hth #!mike -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] +++ This Mail Was Scanned By Mail-seCure System at the Tel-Aviv University CC. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: using SUDO in bash script
Micha Feigin wrote: On Thu, Feb 05, 2004 at 01:41:43PM +0100, Michael Rauch wrote: Rick Weinbender wrote: Adam Aube wrote: On Wednesday 04 February 2004 03:23 pm, Rick Weinbender wrote: Can I use SUDO within a bash script? Absolutely, though be aware that if sudo is set to require a password, you won't be able to run it in the background. By putting NOPASSWD before the command in /etc/sudoers, sudo will not require a password to run that command. * Thanks. I'm new to SUDO, but I found a web clip that seems to be what I'm going for. Just can't make it work yet. Can I avoid typing sudo before myprogram at the commandline? Clip Below: * Clipped from article: The one disadvantage of using sudo is that your users have to remember to run sudo ... as part of their command. However, that's easy to work around by simply creating a wrapper shell script. This is a normal (non-SUID) shell script that simply does something like: `` #!/bin/sh exec /usr/bin/sudo /some/path/to/our/target/prog $@ '' (execute sudo, on the target program and pass our argument, preserving any quoting as we specified it). * This clip is what you want to do. Save that shell script as the program name to run, for example save it as sudoprog and give it executable permitions (chmod +x). When you users now run sudoprog it will run the shell script that will call the program using sudo. This will still ask for the password if sudo is setup to ask for a password (very recomended). Another option which is much less secure is to set the program setuid root which will make it run as the root even when a normal user runs it (it actually runs the program as the owner which in this case is root). you need to make it owned by root and then run chmod 04755 prog. This will give you no access control though so watch out. (you can also limit the access a bit using group limitation by doing chgrp prog group prog and then chmod 04750 prog) The advantage of sudo is that you can set a per user and per program access settings. Thanks, -Rick instead of writing a shellscript you could also use aliases in the bash shell (don't know if it works in other shells though). to have your aliases available all the time, you can but them in your .bashrc file in your $HOME directory (you will probably already find some aliases defined in there). example: $ alias ls='cd' doesn't make much sense, but shows you how it works: ls is now defined as an alias for cd. so if you type 'ls /home' bash will actually invoke 'cd /home' similar you could use: $ alias myprogram='sudo myprogram' to make bash invoke myprogram with SUDO hth #!mike *** Thanks to everyone for the help! -Rick -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
using SUDO in bash script
Can I use SUDO within a bash script? ie: #!/bin/sh sudo myprogram Thanks, -Rick -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: using SUDO in bash script
On Wednesday 04 February 2004 03:23 pm, Rick Weinbender wrote: Can I use SUDO within a bash script? Absolutely, though be aware that if sudo is set to require a password, you won't be able to run it in the background. By putting NOPASSWD before the command in /etc/sudoers, sudo will not require a password to run that command. Adam -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: using SUDO in bash script
Adam Aube wrote: On Wednesday 04 February 2004 03:23 pm, Rick Weinbender wrote: Can I use SUDO within a bash script? Absolutely, though be aware that if sudo is set to require a password, you won't be able to run it in the background. By putting NOPASSWD before the command in /etc/sudoers, sudo will not require a password to run that command. * Thanks. I'm new to SUDO, but I found a web clip that seems to be what I'm going for. Just can't make it work yet. Can I avoid typing sudo before myprogram at the commandline? Clip Below: * Clipped from article: The one disadvantage of using sudo is that your users have to remember to run sudo ... as part of their command. However, that's easy to work around by simply creating a wrapper shell script. This is a normal (non-SUID) shell script that simply does something like: `` #!/bin/sh exec /usr/bin/sudo /some/path/to/our/target/prog $@ '' (execute sudo, on the target program and pass our argument, preserving any quoting as we specified it). * Thanks, -Rick -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: using SUDO in bash script
On Wednesday 04 February 2004 04:09 pm, Rick Weinbender wrote: Can I avoid typing sudo before myprogram at the commandline? Yes - it works just like the article you quoted describes it. Adam -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
