Re: 'alias' + sudo
On Fri, Sep 4, 2009 at 10:50 AM, George Davidovich wrote: > On Thu, Sep 03, 2009 at 08:10:36PM -0400, Jerry wrote: >> On Fri, 4 Sep 2009 01:34:05 +0200 Mel Flynn wrote: >> >> > alias spico='/usr/local/bin/sudo pico -m' and be done with it. > > Instead of an extra alias, why not export $VISUAL or $EDITOR, and rely > on sudoedit(8)? > >> That is what I am currently doing; however,there are other commands >> that I want to use that are not available when used via sudo without >> modifying the alias. I did not realize that sudo had such a >> limitation. > > It's not a "limitation". It's a feature. ;-) Re-read the sudo > manpage. > > I'd be surprised if most of your aliases would ever require root > privileges, and are anything but one-off shortcuts for your personal > use. > > For those that do, I'd suggest replacing them with a function (or > script) that tests for root privileges (using something like id(1)), and > invokes sudo when appropriate. > > Otherwise, you may want to consider using 'su -m'. That will your > current environment unmodified and all your existing aliases will remain > available for use. > > -- > George > ___ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org" > There is a way for what you are wanting to do. Make an alias for sudo that looks like this "sudo='sudo -E (Your default shell)" Since I use zsh my alias looks like this sudo='sudo -E zsh' It perserves all of your aliases, paths, and everything else . -- - Amiga, The Computer for the creative Mind! - UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity. - People who hate Microsoft Windows use Linux but people who love UNIX use BSD. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: 'alias' + sudo
On Thu, Sep 03, 2009 at 08:10:36PM -0400, Jerry wrote: > On Fri, 4 Sep 2009 01:34:05 +0200 Mel Flynn wrote: > > > alias spico='/usr/local/bin/sudo pico -m' and be done with it. Instead of an extra alias, why not export $VISUAL or $EDITOR, and rely on sudoedit(8)? > That is what I am currently doing; however,there are other commands > that I want to use that are not available when used via sudo without > modifying the alias. I did not realize that sudo had such a > limitation. It's not a "limitation". It's a feature. ;-) Re-read the sudo manpage. I'd be surprised if most of your aliases would ever require root privileges, and are anything but one-off shortcuts for your personal use. For those that do, I'd suggest replacing them with a function (or script) that tests for root privileges (using something like id(1)), and invokes sudo when appropriate. Otherwise, you may want to consider using 'su -m'. That will your current environment unmodified and all your existing aliases will remain available for use. -- George ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: 'alias' + sudo
On Friday 04 September 2009 02:10:36 Jerry wrote: > On Fri, 4 Sep 2009 01:34:05 +0200 > > Mel Flynn wrote: > > alias spico='/usr/local/bin/sudo pico -m' and be done with it. > > That is what I am currently doing; however,there are other commands > that I want to use that are not available when used via sudo without > modifying the alias. I did not realize that sudo had such a limitation. It doesn't. alias has the limitation. As far as alias is concerned, a command is the first thing on the command line, and for good reason, as you don't want it to look further along the command line and attempt to expand everything. So the shell only changes the command that is really run, when the first word matches an alias. Sudo or any app for that matter, never knew it was run through an alias. However.reading through the bash manpage: If the last character of the alias value is a blank, then the next command word following the alias is also checked for alias expansion. So.: $ alias sudo='/usr/local/bin/sudo ' $ alias pico='vim --version' $ sudo pico VIM - Vi IMproved 7.2 (2008 Aug 9, compiled Jul 21 2009 13:22:46) Included patches: 1-6, 8-35, 37-48, 50-70, 73, 75-87, 90-92, 94-100, 102-137, 139-149, 151-171, 173-190, 192-193, 195-203, 206-209 Howeverbe aware of the consequences. If someone compromises your account, then setting: alias ls='/tmp/mkroot' and you running: sudo ls He just got root. -- Mel ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: 'alias' + sudo
On Fri, 4 Sep 2009 01:34:05 +0200 Mel Flynn wrote: > alias spico='/usr/local/bin/sudo pico -m' and be done with it. That is what I am currently doing; however,there are other commands that I want to use that are not available when used via sudo without modifying the alias. I did not realize that sudo had such a limitation. -- Jerry ges...@yahoo.com Recursion is the root of computation since it trades description for time. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: 'alias' + sudo
On Wednesday 02 September 2009 13:26:59 Jerry wrote: > I have set up several 'alias' definitions in my .bashrc file. They are > honored when run as either a regular user or as root. However, when I > prefix a command with 'sudo', the alias is no longer honored. In other > words, the actual command is run;however, any flags that I was passing > to it via 'alias' are lost. How can I circumvent this annoyance. > > Example, I often use 'pico' from within 'xterm'. I set up an alias that > causes pico to use the mouse; i.e., pico -m which works fine as long as > I do not prefix the command with 'sudo' alias spico='/usr/local/bin/sudo pico -m' and be done with it. -- Mel ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: 'alias' + sudo
On Wed, 2 Sep 2009 15:06:48 -0500, Dan Nelson wrote: > sudo does not run root's shell at all; it directly runs whatever is given it > on the commandline. Another idea would to be to call sudo with the desired shell as argument (in order to inherit the aliases), followed by a command as argument to the shell (in order to execute a particular command), something like % sudo bash -c "my_command_alias" It may be possible that bash requires an additional argument to tell it to read ~/.bashrc when invoked in a non-interactive manner. Keep in mind that I haven't tried this solution because I don't use bash on a regular basis. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ... ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: 'alias' + sudo
In the last episode (Sep 02), Jerry said: > On Wed, 2 Sep 2009 13:06:28 -0600 > Tim Judd wrote: > > Because sudo calls the binary, via SUID on sudo. It doesn't pay > > attention to user profiles or rc files (like .bashrc). > > > > I don't use sudo, so I can't recommend past that. > > In other words, sudo is not compatible with the bash 'alias' feature. Is > that correct? I Googled and found several references to sudo and alias; > however, no consensus on how to circumvent the problem. sudo does not run root's shell at all; it directly runs whatever is given it on the commandline. Workarounds include creating an alias that includes sudo in it (alias rootpicom='sudo pico -m'), or creating a shell script that runs what your alias would have, so you can run "sudo picom": /usr/local/bin/picom #! /bin/sh pico -m "$@" -- Dan Nelson dnel...@allantgroup.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: 'alias' + sudo
On Wed, 2 Sep 2009 13:06:28 -0600 Tim Judd wrote: [snip] > Because sudo calls the binary, via SUID on sudo. It doesn't pay > attention to user profiles or rc files (like .bashrc). > > > I don't use sudo, so I can't recommend past that. In other words, sudo is not compatible with the bash 'alias' feature. Is that correct? I Googled and found several references to sudo and alias; however, no consensus on how to circumvent the problem. -- Jerry ges...@yahoo.com In response to President Obama's complaint that FOX News doesn't show enough Black and Hispanic people on their network, FOX has announced that they will now air "America's Most Wanted" TWICE a week. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: 'alias' + sudo
On 9/2/09, Jerry wrote: > I have set up several 'alias' definitions in my .bashrc file. They are > honored when run as either a regular user or as root. However, when I > prefix a command with 'sudo', the alias is no longer honored. In other > words, the actual command is run;however, any flags that I was passing > to it via 'alias' are lost. How can I circumvent this annoyance. > > Example, I often use 'pico' from within 'xterm'. I set up an alias that > causes pico to use the mouse; i.e., pico -m which works fine as long as > I do not prefix the command with 'sudo' > Because sudo calls the binary, via SUID on sudo. It doesn't pay attention to user profiles or rc files (like .bashrc). I don't use sudo, so I can't recommend past that. --TJ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
'alias' + sudo
I have set up several 'alias' definitions in my .bashrc file. They are honored when run as either a regular user or as root. However, when I prefix a command with 'sudo', the alias is no longer honored. In other words, the actual command is run;however, any flags that I was passing to it via 'alias' are lost. How can I circumvent this annoyance. Example, I often use 'pico' from within 'xterm'. I set up an alias that causes pico to use the mouse; i.e., pico -m which works fine as long as I do not prefix the command with 'sudo' -- Jerry ges...@yahoo.com I just need enough to tide me over until I need more. Bill Hoest ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
