How to execute commands on different CLI from shell script?

Question

I have to connect to a different cli and execute few commands and exit. sudo $SIGNMCLI connects to a cli. The below script doesn't work. I want to execute the exit in SIGNMCLI.

#!/bin/bash -xv

SIGNMCLI=/opt/sign/EABss7024/bin/signmcli

if [ -f "$FileCheck" ];
then
        sudo $SIGNMCLI
        exit;
fi

If I do the following, it works:

#!/bin/bash -xv

SIGNMCLI=/opt/sign/EABss7024/bin/signmcli

if [ -f "$FileCheck" ];
then
        echo 'exit' |sudo  $SIGNMCLI
fi

But, I want to execute multiple commands in SIGNMCLI. Is there anyway to redirect the control to SIGNMCLI and after executing all the commands, the control comes back?

SIGNMCLI=/opt/sign/EABss7024/bin/signmcli

Kumaresan C
– Kumaresan C

2017-04-07 07:35:54 +00:00
Commented Apr 7, 2017 at 7:35 — Kumaresan C
– Kumaresan C, Commented Apr 7, 2017 at 7:35

danglingpointer · Accepted Answer · 2017-04-07 07:51:45Z

1

You can execute multiple commands using semicolon operator in your script.

cmd1 ; cmd2 ; cmd3 ...

In you case, I suggest you to use ; or &.

    echo 'exit'; sudo  $SIGNMCLI

This is the basic usage of commands.

* A; B    Run A and then B, regardless of success of A
* A && B  Run B if A succeeded
* A || B  Run B if A failed
* A &     Run A in background.

answered Apr 7, 2017 at 7:51

danglingpointer

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5 Comments

Kumaresan C Over a year ago

Hi, thanks for reply, I tried its working. echo 'ls;ifconfig;who;exit'|sudo $SIGNMCLI apart from this any other command is there. without using 'echo' command normally shell script if we are processing any ORACLE request means we are using >> EOF ....... EOF same like any commands are there in shell

Kumaresan C Over a year ago

Hi, i have one more doubt, using shells script i need to continuously checks the directory for particular file, if the particular file is present i need to do some operation. eg: if file present i need to restart stack 'ss7-stack restart'

danglingpointer Over a year ago

You didnt even upvoted for the provided solution. And now your asking for another shell issue, raise another questions in sf.

Kumaresan C Over a year ago

The previous solution is working fine. if [ -f "$FileCheck" ]; then echo "$FileCheck found entering signmcli command." echo '$SIGNMCLI_RESTART;exit' | sudo $SIGNMCLI else echo "$FileCheck not found." >&2 fi

danglingpointer Over a year ago

If it works fine means you can upvote that's the least courtesy you can do. You can click the mouse button up on little triangle

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