Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Finding out if you are in an ssh session

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Finding out if you are in an ssh session
# 1  
Old 04-18-2009
Finding out if you are in an ssh session
Hey,

I'm trying to build customized behavior in a bash script for when it is run within an ssh session. This is how I'm finding out if the current session is ssh:

Code:
USER=`whoami`                                                                                                                  
CURRENT_TTY=`ps -Alf | grep $$ | head -n 1 | gawk '{print $13}'`                                                               
(! ( ps -Alf | grep "sshd: $USER@$CURRENT_TTY" | grep -v grep )) > /dev/null                                                   
IS_SSH_SESSION=$?

I'm wondering if anyone knows of a better way to do this?
# 2  
Old 04-19-2009
/proc/$pid/maps

If you can find sshd, u can find out that your console is a ssh.
Last edited by Zaxon; 04-19-2009 at 06:24 AM..
# 3  
Old 04-19-2009
no no, I should work more to find it out . sorry.
# 4  
Old 04-19-2009
Quote:
Originally Posted by neked
I'm wondering if anyone knows of a better way to do this?
Depending on your environment, checking SSH_CLIENT and/or SSH_CONNECTION for any contents might do the trick (?).

Code:
[house@freyja] env | grep 'SSH_C' # no session, no feedback
[house@mahab] env | grep 'SSH_C' # from within a session
SSH_CLIENT=62.202.13.15 54550 22
SSH_CONNECTION=62.202.13.15 54550 192.168.110.111 22

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

PAM closing SSH session

Hello guys, You are my last hope. I googled for hours and tried so many things but I can't find a way to fix my problem. So there we go: I open a SSH tunnel to my linux vps. My client sends every 5-minutes a keepalive package and I also set the "ClientAliveInterval" value to 300 in the... (8 Replies)
Discussion started by: iamanewb
8 Replies

2. Shell Programming and Scripting

how to exit ssh session

Hi , I am running a script on multiple servers.When I run that script on one server,I want to exit from that server and want to go to next server.PFB script: Suppose there are 3 servers:server1,server2,server3.I am currently in server1. for h in {2..3} do ssh username@server$h <<EOF ... (4 Replies)
Discussion started by: sonu141
4 Replies

3. Shell Programming and Scripting

SSH session in perl.

Is it possible to ssh to a server in perl and execute multiple commands without doing them all at once? I know I can potentially do something like system( 'ssh user@server "cd directory; grep blah *; curl someurl.com"'); However, I'd like the functionality where I don't have to keep SSHing... (3 Replies)
Discussion started by: mrwatkin
3 Replies

4. UNIX for Dummies Questions & Answers

SSH session

I ran a job using SSH and then used screen command followed by space bar. Then I ran the job. But after some hours, the internet connection was lost.This had happened to me before. I used to run the whole job again. Today I came across the fact that I could restart the jobs without having to do it... (2 Replies)
Discussion started by: nellierd
2 Replies

5. Shell Programming and Scripting

SSH session saving

Hi, I want to execute some script on the remote session and transfer the processed file on remote machine to local machine. I tried with ssh-keygen and ssh-copy-id but seems that this has been disable on the remote machines, Is there any possiblity that I can save the remote username and... (7 Replies)
Discussion started by: maruthavanan
7 Replies

6. HP-UX

ssh session getting hung (smilar to hpux telnet session is getting hung after about 15 minutes)

Our network administrators implemented some sort of check to kill idle sessions and now burden is on us to run some sort of keep alive. Client based keep alive doesn't do a very good job. I have same issue with ssh. Does solution 2 provided above apply for ssh sessions also? (1 Reply)
Discussion started by: yoda9691
1 Replies

7. HP-UX

SSh session hang

Hello, When I connect to a HP-UX 11.23 and/or 11.31 after a time without activity, the session hang. There is not TMOUT stablished, and the session NOT finish, always keep hang after about 20min of inactivity period. Anyone knows if this problem is related to HP-UX or network... (1 Reply)
Discussion started by: RuBiCK
1 Replies

8. Shell Programming and Scripting

could not send commands SSH session with Net::SSH::Expect

I am using Net::SSH::Expect to connect to the device(iLO) with SSH. After the $ssh->login() I'm able to view the prompt, but not able to send any coommands. With the putty I can connect to the device and execute the commands without any issues. Here is the sample script my $ssh =... (0 Replies)
Discussion started by: hansini
0 Replies

9. Solaris

mbx_bad_handle during ssh -X session

We have a Solaris 10 server that we're migrating an old Cadre Teamwork application to. We find that when users on Sun workstations use ssh -X <username>@<new server> and run Teamwork on this new server it is fine. When cygwin users and linux users run ssh -X to get to this new platform they... (0 Replies)
Discussion started by: pzxkys
0 Replies

10. Shell Programming and Scripting

scripting an ssh session?

I know the root login/password for a machines, and I want to automate some commands like this from each: ssh root@remoteHost1 "tail /var/log/messages" ssh root@remoteHost2 "tail /var/log/messages" ssh root@remoteHost3 "tail /var/log/messages" ssh root@remoteHost4 "tail /var/log/messages" ssh... (2 Replies)
Discussion started by: jjinno
2 Replies
Login or Register to Ask a Question