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Full Discussion: How to have local shell variables in a ksh script seen on remove server in SSH block?
Top Forums UNIX for Beginners Questions & Answers How to have local shell variables in a ksh script seen on remove server in SSH block? Post 303036249 by vgersh99 on Thursday 20th of June 2019 05:42:57 PM
Old 06-20-2019
Quote:
Originally Posted by DJR
I have googled this and found many solutions, but none of them are working for me. I am in a korn shell, most others reference bsh, maybe that is the issue? Anyway, all I am trying to do is use a variable I have declared in my main script in a remote shell I am running through ssh.

So I have a script with code similar to this:

Code:
filepath=/xxx/yyy/zzz/
filename=xyz

ssh uid@hostname << 'ENDSSH'
.
.
if [[ -e ${filepath}${filename} ]]; then
....
....
fi

ENDSSH

But filepath and filename are blank in the remote shell as they are declared locally. How do I get those values seen in the SSH block?
either:
Code:
filepath=/xxx/yyy/zzz/
filename=xyz

ssh uid@hostname << ENDSSH
.
.
if [[ -e \${filepath}\${filename} ]]; then
....
....
fi

ENDSSH

or

Code:
filepath=/xxx/yyy/zzz/
filename=xyz

ssh -q uid@hostname " \
. \
. \
myRemoteVar='foo' \
echo here's my remoteVar->[\${myRemoteVar}] \
if [[ -e ${filepath}/${filename} ]]; then
.... \
.... \
fi " < /dev/null

# the \${vars} are variables to be evaluated on the REMOTE host

Last edited by vgersh99; 06-21-2019 at 11:24 AM.. Reason: fixed double-quoting in the 2nd suggestion
 

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LEARN ABOUT LINUX

ssh-argv0

SSH-ARGV0(1)						    BSD General Commands Manual 					      SSH-ARGV0(1)

NAME

     ssh-argv0 -- replaces the old ssh command-name as hostname handling

SYNOPSIS

     hostname | user@hostname [-l login_name] [command]

     hostname | user@hostname [-afgknqstvxACNTX1246] [-b bind_address] [-c cipher_spec] [-e escape_char] [-i identity_file] [-l login_name]
     [-m mac_spec] [-o option] [-p port] [-F configfile] [-L port:host:hostport] [-R port:host:hostport] [-D port] [command]

DESCRIPTION

     ssh-argv0 replaces the old ssh command-name as hostname handling.	If you link to this script with a hostname then executing the link is
     equivalent to having executed ssh with that hostname as an argument.  All other arguments are passed to ssh and will be processed normally.

OPTIONS

     See ssh(1).

FILES

     See ssh(1).

AUTHORS

     OpenSSH is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen.  Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos,
     Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH.  Markus Friedl contributed the support for SSH
     protocol versions 1.5 and 2.0.  Jonathan Amery wrote this ssh-argv0 script and the associated documentation.

SEE ALSO

     ssh(1)

Debian Project							 September 7, 2001						    Debian Project
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