General :: Remote Command Execution Via SSH And Newgrp Command?
May 9, 2011
Up until now I've been using plink to remotely compile a project I'm working on. But recently the administrator from the remote server updated the distribution and messed up some configurations. My project has a lot of scripts written for tc shell (tcsh), and now the default shell is bash. There is no way to change this. Another problem is that now I need to run newgrp to change my default user group.
So... to work around this problem I've changed my .bashrc to run newgrp and then tcsh. If I do a normal connection using SSH, everything works as expected, but when using plink, or SSH to remotely execute commands, the shell gets stuck on the newgrp command. I think it's because both applications need a return value from newgrp to send the command I need to execute. Remotely running scripts that call a shell also get stuck like newgrp (newgrp also opens a new shell and that's why it gets stuck) my .bashrc is as follows:
Code:
user_grp=`id -g`
if [ $user_grp != 4919 ]; then
newgrp new_group_id
else
[code]....
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Jun 14, 2010
I have the following command:
Code:
(systool -c fc_host -v && systool -c fc_remote_ports -v) | grep -E '+Class Device path = "/sys/class/fc_host/host[0-9]+"$|+node_name.*= "0x[0-9a-f]{16}"$|+Class Device path = "/sys/class/fc_remote_ports/rport-[0-9]+:[0-9]+-[0-9]+"' | sed -e 's#.*host([0-9]*).*"#scsi-qla1-adapter-node=#' -e 's#.*rport-([0-9]*):[0-9]*-([0-9]*).*#scsi-qla1-target-2=#' -e '$!N;s#
##' -e 's#=.*node_name.*= "0x#=#g' -e 's#"$#;#g' | sort
and I want it to execute via ssh on a remote machine through a script. Therefor I need to escape it properly. Because of the massive use of regular expressions and commandline options, this is not an easy task. Is there any (online) utility that will escape that for bash use? I suppose pasting the code in vi and doing some search and replaces should do the trick. But for that I would need a list of characters to escape...
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Jun 7, 2010
Bash's command history is great, especially it is useful when adding the history -a command to the COMMAND_PROMPT.However, I'm wondering if there is a way to log the commands to a file as soon as the Return key is pressed, e.g. before starting the command and not on completion of the command (using the COMMAND_PROMPT option would save the command once the prompt is there again).
I read about auditing programs like snoopy and session recorder like script but I thought they're already too complex for the simple question I have. I guess that deactivating that script logs all the output of the command would lead already in the right direction but isn't there a quicker way to solve that probelm?
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Aug 19, 2009
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Oct 13, 2010
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Aug 13, 2009
I want to use ssh to execute a command and to wait endlessly to log everything (in file) that comes as a stream of the connected server. But unfortunately, in the manual its written "If command is specified, it is executed on the remote host instead of a login shell"
So what happens is that when I specify my command:
ssh user@server "my_command"
It executed the command and the flow of execution returns to bash shell. So basically my session ends right after the command is executed. This happens only in case I specify command in the command line. If I login into ssh manually and then type "my_command", then the session doesn't end. I want the ssh not to exit, because after "my_command" executes, I want to capture everything in the session.
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Jan 8, 2010
Problem started after installing a new firewall in my network. originally after installing the firewall there would be a 10 second delay after entering a command before it was processed, the command would be executed however there would be an error, i forget what it said, something about not being able to resolve my domain name (and it would give my domain name). i realized this was a problem with my NAT, so i configured DNS forwarding on my firewall so that any attempt to access my server using my domain name from inside the network would point back at my server. after setting up the DNS forwarding i no longer receive the error about my domain name being unreachable, however there is approximately a 30s delay between entering a command and its execution.
the problem is hardly critical i do not see any more serious problems, it is just a pain to do any work when every time i try to do something i have to wait for it to execute.
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Mar 14, 2011
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Apr 12, 2010
I'm not quite sure what's up with this, but when I change the title of a terminal away from the default (e.g. to represent which project that terminal is to be used for), it changes back to the default (user@host:path), but only on the task bar at the bottom of the screen, listing the open windows.
If I change tabs in the terminal and then change back, it displays again at the bottom of the screen, but as soon as I execute another command (e.g. ls), then it resets again. That's quite annoying, as I like to have a few terminals open, each with a set of tabs pertaining to a particular project. The fact that I can't see from the title on the taskbar which is which means I have to guess/remember/check them all...
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Jun 21, 2010
I have a script:
Quote:
# Call mail script to send an email
if [ -f /tmp/report.txt ]; then
/usr/local/scripts/mail.pl
sleep 10
rm /tmp/report.txt
else
exit
fi
What I need to do is, I want to check if file exists, if file exists call other script (mail.pl) and then delete the file (assuming mail.pl script executed). If file not exists just exit out of the script. I'm not sure how I can see that other script execution completed or not before I delete the file even though I put sleep command. And also it seems like its not that good, even though it is working. I wanted to see if we can write in more efficient way.
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Jan 27, 2010
I created a file which in I tried both :
Code:
MAILTO=""
* * * * * /var/www/scripts/script.php >> /dev/null
[code]....
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Mar 26, 2011
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Jan 20, 2010
Imaging-copying a working remote share on WindowsNT to a local Linux disk target is needed .
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Jun 24, 2011
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Jun 29, 2010
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Sep 23, 2010
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Dec 29, 2010
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Jun 7, 2010
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Apr 27, 2011
How can i do that.. Today is my first day writing a script.. and correct me if this Thread should be somewhere else..
Code:
if [ $1=$anyvariable ]; then
ssh www.a.com <Have to set few variables and give commands >
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Feb 1, 2010
Because of my English skills I'll try to explain this subject as best I can, thank you for understanding. Fisrt of all, I am running some program on my slackware in background (using standard method - &). I need to make a script, which allows sending command to this process on my machine from another one. Furthermore this program have to be logged out (standard output f.e. ./myprogram > log.out.txt).It might be a separate Program A which runs my Program B but it cannot be screen, because it is not working like I'd like to and it cannot be java, because it's slow and working not the best so to speak
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Mar 26, 2011
I know my way around MS Windows much better, but I just don't feel right trying to program something for Android on a Microsoft operating system. I am interested in Android programming so I followed the instructions on [URL] to install the environment on my computer...
I just installed the JDK, SDK, Eclipse successfully (or I assume):
* When I get to Step 4 where I'm supposed to run 'android' it will not run. I get the error message "android: command not found" (I am definitely in the right directory).
** When I double-click it in nautilus, it opens up in gedit. I can set the permissions in nautilus (through the properties - Allow executing file as a program) and get it to work,
My system:
Intel i7
Ubuntu 10.10 Maverick Meerkat
android-sdk-linux-x86
eclipse 3.6.2
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Jul 3, 2009
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Apr 30, 2011
I installed the Berkeley DB on the Ubuntu server and tried to access the dbxml from the command line and it returns command not found
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-bash" dbxml: command not found
Can someone point me in the right direction
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Jul 21, 2010
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Apr 14, 2011
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Nov 20, 2009
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Mar 20, 2011
Possible Duplicate: What does this cryptic bash command mean? Why this command crashes Linux? :(){ :|:& };:
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Apr 4, 2011
i want in the website they ask to enter some input.Code:echo -e "<p>Please Enter Year : c</p> "read Yearif i use this command it will ask the user to enter year in command. but what i want is they ask the user to enter year in web browser.
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Apr 29, 2010
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#%PAM-1.0
auth sufficient pam_rootok.so
# Uncomment the following line to implicitly trust users in the "wheel" group.
[code]....
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May 31, 2010
What's the command to delete bash command history?
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