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Full Discussion: Can BASH execute commands on a remote server when the commands are embedded in shell
Top Forums Shell Programming and Scripting Can BASH execute commands on a remote server when the commands are embedded in shell Post 302264345 by bash_in_my_head on Wednesday 3rd of December 2008 04:54:15 PM
Old 12-03-2008
Can BASH execute commands on a remote server when the commands are embedded in shell
I want to log into a remote server transfer over a new config and then backup the existing config, replace with the new config.
I am not sure if I can do this with BASH scripting.
I have set up password less login by adding my public key to authorized_keys file, it works.
I am a little bewildered about whether I can execute commands on the remote server from within my BASH script.
I am thinking that It would be necessary to use expect. I have looked at expect and am not sure I want to go there.

I currently have
# ./copy_to_server httpd.conf.new /etc/httpd/conf/ 192.168.1.100
#/bin/bash
FILE1=$1
FILE2=$2
FILE3=$3
FILE4=$4
FILE5=$5
FILE6=$6



if [ ! -f "$FILE3" ]; then
scp $FILE1 $FILE3:$FILE2
else
echo "$FILE3 is not up"
fi

##########
So the file is on the remote server, now I want to move around some exsting files.

Now I am unsure how to set up to check for the existing httpd.conf and move it around on the remote server using BASH.
[ -f /etc/httpd/conf/httpd.conf ]
mv /etc/httpd/conf/httpd.conf /etc/httpd/conf/httpd.conf.bk_up
mv /etc/httpd/conf/httpd.conf.new /etc/httpd/conf/httpd.conf

And then log off

Can BASH do this on its own?

I thought that one way around this would be to create a cron job to check /etc/httpd/conf/ dir for a new file
when it finds httpd.conf.new it could move over the old and move in the new.

So now I am curious is executing multiple commands on a remote server via bash possible? and then logging off.

Any suggestions are appreciated.
Last edited by bash_in_my_head; 12-04-2008 at 09:50 PM..
 

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LEARN ABOUT DEBIAN

git-annex-shell

git-annex-shell(1)					      General Commands Manual						git-annex-shell(1)

NAME

       git-annex-shell - Restricted login shell for git-annex only SSH access

SYNOPSIS

       git-annex-shell [-c] command [params ...]

DESCRIPTION

       git-annex-shell is a restricted shell, similar to git-shell, which can be used as a login shell for SSH accounts.

       Since  its  syntax  is  identical to git-shell's, it can be used as a drop-in replacement anywhere git-shell is used. For example it can be
       used as a user's restricted login shell.

COMMANDS

       Any command not listed below is passed through to git-shell.

       Note that the directory parameter should be an absolute path, otherwise it is assumed to be relative to the user's home directory. Also the
       first "/~/" or "/~user/" is expanded to the specified home directory.

       configlist directory
	      This outputs a subset of the git configuration, in the same form as git config --list

       inannex directory [key ...]
	      This checks if all specified keys are present in the annex, and exits zero if so.

       dropkey directory [key ...]
	      This drops the annexed data for the specified keys.

       recvkey directory key
	      This runs rsync in server mode to receive the content of a key, and stores the content in the annex.

       sendkey directory key
	      This runs rsync in server mode to transfer out the content of a key.

       commit directory
	      This commits any staged changes to the git-annex branch.	It also runs the annex-content hook.

OPTIONS

       Most options are the same as in git-annex. The ones specific to git-annex-shell are:

       --uuid=UUID
	      git-annex uses this to specify the UUID of the repository it was expecting git-annex-shell to access, as a sanity check.

HOOK

       After  content is received or dropped from the repository by git-annex-shell, it runs a hook, .git/hooks/annex-content (or hooks/annex-con-
       tent on a bare repository). The hook is not currently passed any information about what changed.

ENVIRONMENT

       GIT_ANNEX_SHELL_READONLY

	      If set, disallows any command that could modify the repository.

       GIT_ANNEX_SHELL_LIMITED
	      If set, disallows running git-shell to handle unknown commands.

SEE ALSO

       git-annex(1)

       git-shell(1)

AUTHOR

       Joey Hess <joey@kitenet.net>

       <http://git-annex.branchable.com/>

																git-annex-shell(1)
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