Bash inserting additional, invalid single quotes when quoting an argument list

Question

I am trying to create a program that will start Maven with certain arguments.

This is mainly done:

ARGUMENTS=\""${@:2}"\"
mvn exec:java -Dexec.mainClass=$1 -Dexec.args=$ARGUMENTS

Thus, a launch ./myScript.sh a b cshould result in a launch:

mvn exec:java -Dexec.mainClass=a -Dexec.args="b c"

But Maven throws errors about an unknown life cycle. The face-off set -xthere tells me that the team actually turns into:

mvn exec:java -Dexec.mainClass=a '-Dexec.args="b' 'c"'

Echoing $ARGUMENTSgives the expected "b c". What causes the addition of these extra quotes and how can I fix this to get my intended results?

Answer 1

arguments="${*:2}"
mvn exec:java -Dexec.mainClass="$1" -Dexec.args="$arguments"

See BashFAQ # 50 for a full explanation. Nonetheless:

"$@" argv - , --foo="$@", set -- hello world, "--foo=hello" "world".

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$*, , , glob, , ( ) - , .

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, -Dexec.args="$arguments" ( , "-Dexec.args=$arguments"). :

• . $arguments .
• . arguments, , -Dexec.args="hello world" , Maven, .
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Answer 2

, . BASH:

arr=( "$@" )
mvn exec:java -Dexec.mainClass="$1" -Dexec.args="${arr[*]:1}"