CODEWITHSUNDEEP
bashsolaris
Vinod Madan
Vinod Madan

Reputation: 71

BASH Space in filename IsSUE

I have a bash script which executes a Java Command and passes the space delimited String as an argument. Lets say the java class is "HelloWorld" and the required argument is passed as "-environment WIN XP". So the lines in my script are :

        env = WIN XP
        arg=" -environment $env"
        javaCmd="java -Xmx2000m foo.bar.HelloWorld $arg"
        $javaCmd

My HelloWorld class gets only the partial argument -environment WIN and throws an error because it is expecting -environment WIN XP as a whole with spaces. What are the ways in which I can make sure the entire String is treated as once without getting split at the whitespace.

Upvotes: 0

Views: 154

Answers (2)

glenn jackman
glenn jackman

Reputation: 246847

I'm trying to put a command in a variable, but the complex cases always fail!

You need to use an array to preserve which elements contain whitespace:

    env="WIN XP"
    javaCmd=( java -Xmx2000m foo.bar.HelloWorld -environment "$env" )
    "${javaCmd[@]}"

All the quotes above are necessary

Upvotes: 4

chickegg
chickegg

Reputation: 105

THere should be no space between = and the name when assigning a variable. I would propose you use a different name than env for a variable. Also the variable arg isn't really necessary here. You can directly incorporate that in javaCmd.

env="WIN XP" 
javaCmd="java -Xmx2000m foo.bar.HelloWorld -environment $env"
$javaCmd

Upvotes: 2

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