Passing parameter with single quote to shell script

Shell Programming and Scripting
1

Hello All,

I am trying below

+++++++++

#/bin/bash
set -x
Host=$1
Port=$2
User=$3
Pass=$4
Warning=$5
Critical=$6
SCRIPT_LOC=/opt/agent/
Parameters="'""hostname=$Host&""port=$Port&""username=$User&""password=$Pass&""jvm=UsedMemory,$Warning,$Critical""'"
echo $Parameters
$SCRIPT_LOC/agent.sh "$Parameters"

+++++++++++++++++

the agent.sh expects the arguments to be within single quotes as below

agent.sh 'hostname=xxx&port=xxx&username=xxx&password=xxx&jvm=UsedMemory,xx,xx'

in my above script echo $parameters does give the output as

'hostname=xxx&port=xxx&username=xxx&password=xxx&jvm=UsedMemory,xx,xx'

but $SCRIPT_LOC/agent.sh "$Parameters" gets executed as

agent.sh ''\''hostname=xxx&port=xxx&username=xxx&password=xxx&jvm=UsedMemory,xx,xx'\'''

and it fails.

Any pointers to fix this would help me.

Thanks
Sundari

2

Please use code tags as it is difficult for us to read.
How do you want the parameters to be passed?

3

Hi

#/bin/bash
set -x
Host=$1
Port=$2
User=$3
Pass=$4
Warning=$5
Critical=$6
SCRIPT_LOC=/opt/agent/
Parameters="'""hostname=$Host&""port=$Port&""username=$User&""password=$Pass&""jvm=UsedMemory,$Warni  ng,$Critical""'"
echo $Parameters
$SCRIPT_LOC/agent.sh "$Parameters"

the agent.sh expects the arguments to be within single quotes as below

agent.sh 'hostname=xxx&port=xxx&username=xxx&password=xxx&jvm=UsedMemory,xx,xx'
4 
agent.sh "'hostname=${Host}&port=${Port}&username=${User}&password=${Pass}&jvm=UsedMemory,${Warning},${Critical}'"
5

Hi Srini

i updated my script(a.sh) as below

Host=$1
Port=$2
User=$3
Pass=$4
Warning=$5
Critical=$6
SCRIPT_LOC=/opt/agent/
$SCRIPT_LOC/agent.sh "'hostname=${Host}&port=${Port}&username=${User}&password=${Pass}&jvm=UsedMemory,${Warning},${Critical}'"

Ran a.sh as

./a.sh abc.xyz.com 7003 usera passwd 90 95

and got below error

/opt/agent/agent.sh ''\''hostname=abc.xyz.com&port=7003&username=usera&password=passwd&jvm=UsedMemory,90,95'\'''
java.io.IOException: Couldn't connect to the specified host : null|

Where as when i directly call agent.sh as

./agent.sh 'hostname=abc.xyz.com&port=7003&username=usera&password=passwd&jvm=UsedMemory,90,95'

it gives me the expected output.

6

try this

agent.sh "hostname=${Host}&port=${Port}&username=${User}&password=${Pass}&jvm=UsedMemory,${Warning},${Critical}"
7

Hi Srini

The agent.sh has a requirement that the parameters passed should be within single quotes.

8

the error you got shows that it is adding single quotes again around the arguments

9

cool thanks that worked :slight_smile:

10

which one worked for you?

11

this worked

agent.sh "hostname=${Host}&port=${Port}&username=${User}&password=${Pass}&jvm=UsedMemory,${Warning},${Critical}"