Get/Set environment variables in a different tty

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1















I'm using a tool (Autokey) that spawns in a new shell. Cool tool, but I want to pull info from my current shell.



Say I'm on pts/0 and I have a variable set: VAR1=yes. In another shell, I want to be able to read the variable from pts/0 and take action accordingly. Would also be nice to be able to set the variable. Any way to do either?



MORE INFO THAT YOU DON'T NEED TO READ (probably):
What I'm doing is creating a reliable way to set up my environment on ANY remote *nix box (AIX, RHEL, SuSE). With one key combo, I run bash, set -o settings, set EDITOR and VISUAL, etc.



NFS is not reliably available. I could change my profile but I can't change root's or I screw it up for the other admins. Essentially, I'm left with whatever I can do over ssh. And it works the way I have it - it's just not pretty. I'd prefer something interactive.



For my specific situation, I've considered saving the variable to a file. That works, as long as I'm local. If I ssh out, saving a file remotely doesn't work.



The tool uses Python so maybe there's a way in Python to read a variable from another shell. I doubt that Python would be able to if Bash can't.










share|improve this question
























  • Relating unix.stackexchange.com/a/8344/117549 unix.stackexchange.com/q/27555/117549 and unix.stackexchange.com/q/91282/117549

    – Jeff Schaller
    Jan 2 at 19:00











  • One approach is to set up your own profile the way you like it, then when you become root, you can source ~yourself/.bashrc

    – glenn jackman
    Jan 2 at 20:22












  • Good point - and with autokey I can source it with a single key combo. That's probably what I'll do. Still, I wonder if there is a way to modify environment variables in another shell. Probably not without hacking systemd - or maybe bash.

    – BrowncoatOkie
    Jan 3 at 13:41















1















I'm using a tool (Autokey) that spawns in a new shell. Cool tool, but I want to pull info from my current shell.



Say I'm on pts/0 and I have a variable set: VAR1=yes. In another shell, I want to be able to read the variable from pts/0 and take action accordingly. Would also be nice to be able to set the variable. Any way to do either?



MORE INFO THAT YOU DON'T NEED TO READ (probably):
What I'm doing is creating a reliable way to set up my environment on ANY remote *nix box (AIX, RHEL, SuSE). With one key combo, I run bash, set -o settings, set EDITOR and VISUAL, etc.



NFS is not reliably available. I could change my profile but I can't change root's or I screw it up for the other admins. Essentially, I'm left with whatever I can do over ssh. And it works the way I have it - it's just not pretty. I'd prefer something interactive.



For my specific situation, I've considered saving the variable to a file. That works, as long as I'm local. If I ssh out, saving a file remotely doesn't work.



The tool uses Python so maybe there's a way in Python to read a variable from another shell. I doubt that Python would be able to if Bash can't.










share|improve this question
























  • Relating unix.stackexchange.com/a/8344/117549 unix.stackexchange.com/q/27555/117549 and unix.stackexchange.com/q/91282/117549

    – Jeff Schaller
    Jan 2 at 19:00











  • One approach is to set up your own profile the way you like it, then when you become root, you can source ~yourself/.bashrc

    – glenn jackman
    Jan 2 at 20:22












  • Good point - and with autokey I can source it with a single key combo. That's probably what I'll do. Still, I wonder if there is a way to modify environment variables in another shell. Probably not without hacking systemd - or maybe bash.

    – BrowncoatOkie
    Jan 3 at 13:41













1












1








1








I'm using a tool (Autokey) that spawns in a new shell. Cool tool, but I want to pull info from my current shell.



Say I'm on pts/0 and I have a variable set: VAR1=yes. In another shell, I want to be able to read the variable from pts/0 and take action accordingly. Would also be nice to be able to set the variable. Any way to do either?



MORE INFO THAT YOU DON'T NEED TO READ (probably):
What I'm doing is creating a reliable way to set up my environment on ANY remote *nix box (AIX, RHEL, SuSE). With one key combo, I run bash, set -o settings, set EDITOR and VISUAL, etc.



NFS is not reliably available. I could change my profile but I can't change root's or I screw it up for the other admins. Essentially, I'm left with whatever I can do over ssh. And it works the way I have it - it's just not pretty. I'd prefer something interactive.



For my specific situation, I've considered saving the variable to a file. That works, as long as I'm local. If I ssh out, saving a file remotely doesn't work.



The tool uses Python so maybe there's a way in Python to read a variable from another shell. I doubt that Python would be able to if Bash can't.










share|improve this question
















I'm using a tool (Autokey) that spawns in a new shell. Cool tool, but I want to pull info from my current shell.



Say I'm on pts/0 and I have a variable set: VAR1=yes. In another shell, I want to be able to read the variable from pts/0 and take action accordingly. Would also be nice to be able to set the variable. Any way to do either?



MORE INFO THAT YOU DON'T NEED TO READ (probably):
What I'm doing is creating a reliable way to set up my environment on ANY remote *nix box (AIX, RHEL, SuSE). With one key combo, I run bash, set -o settings, set EDITOR and VISUAL, etc.



NFS is not reliably available. I could change my profile but I can't change root's or I screw it up for the other admins. Essentially, I'm left with whatever I can do over ssh. And it works the way I have it - it's just not pretty. I'd prefer something interactive.



For my specific situation, I've considered saving the variable to a file. That works, as long as I'm local. If I ssh out, saving a file remotely doesn't work.



The tool uses Python so maybe there's a way in Python to read a variable from another shell. I doubt that Python would be able to if Bash can't.







linux bash shell terminal aix






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 2 at 20:52









Rui F Ribeiro

39.5k1479132




39.5k1479132










asked Jan 2 at 17:39









BrowncoatOkieBrowncoatOkie

565




565












  • Relating unix.stackexchange.com/a/8344/117549 unix.stackexchange.com/q/27555/117549 and unix.stackexchange.com/q/91282/117549

    – Jeff Schaller
    Jan 2 at 19:00











  • One approach is to set up your own profile the way you like it, then when you become root, you can source ~yourself/.bashrc

    – glenn jackman
    Jan 2 at 20:22












  • Good point - and with autokey I can source it with a single key combo. That's probably what I'll do. Still, I wonder if there is a way to modify environment variables in another shell. Probably not without hacking systemd - or maybe bash.

    – BrowncoatOkie
    Jan 3 at 13:41

















  • Relating unix.stackexchange.com/a/8344/117549 unix.stackexchange.com/q/27555/117549 and unix.stackexchange.com/q/91282/117549

    – Jeff Schaller
    Jan 2 at 19:00











  • One approach is to set up your own profile the way you like it, then when you become root, you can source ~yourself/.bashrc

    – glenn jackman
    Jan 2 at 20:22












  • Good point - and with autokey I can source it with a single key combo. That's probably what I'll do. Still, I wonder if there is a way to modify environment variables in another shell. Probably not without hacking systemd - or maybe bash.

    – BrowncoatOkie
    Jan 3 at 13:41
















Relating unix.stackexchange.com/a/8344/117549 unix.stackexchange.com/q/27555/117549 and unix.stackexchange.com/q/91282/117549

– Jeff Schaller
Jan 2 at 19:00





Relating unix.stackexchange.com/a/8344/117549 unix.stackexchange.com/q/27555/117549 and unix.stackexchange.com/q/91282/117549

– Jeff Schaller
Jan 2 at 19:00













One approach is to set up your own profile the way you like it, then when you become root, you can source ~yourself/.bashrc

– glenn jackman
Jan 2 at 20:22






One approach is to set up your own profile the way you like it, then when you become root, you can source ~yourself/.bashrc

– glenn jackman
Jan 2 at 20:22














Good point - and with autokey I can source it with a single key combo. That's probably what I'll do. Still, I wonder if there is a way to modify environment variables in another shell. Probably not without hacking systemd - or maybe bash.

– BrowncoatOkie
Jan 3 at 13:41





Good point - and with autokey I can source it with a single key combo. That's probably what I'll do. Still, I wonder if there is a way to modify environment variables in another shell. Probably not without hacking systemd - or maybe bash.

– BrowncoatOkie
Jan 3 at 13:41










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