在shell脚本中转​​义星号

Question

The asterisk sign in the below array is getting expanded into the list of files when assigning it to an array.

u='*','john'
IFS=$',';q=($u)
for j in "${!q[@]}"
do
        echo "drop user ${q[j]}"
done

The output is:

drop user abc
drop user test.sh
drop user test1.sh
drop user john

What I intend to get is:

drop user *
drop user john

How can I escape the asterisk?

Answer 1

You may use this script:

u='*,john'

# read comma delimited string into an array
IFS=, read -ra q <<< "$u"

# check content of array q
declare -p q

# loop through array q
for j in "${q[@]}"
do
    echo "drop user $j"
done

Output:

declare -a q=([0]="*" [1]="john")
drop user *
drop user john