I wrote the following code to read a file and write it in a list using bash script:
index=0
while read line
do
array[$index]="$line"
index=$(($index+1))
done < ../../file.xml
However, I only need to write lines into the array if they contain the word "icon". An array element should look like this:
<icon height="36" width="36" density="ldpi" src="res/icon/android/ldpi.png"/>
Could anyone help me to fix this problem?
Trivially, with a condition.
case $line in *icon*) ... do stuff;;
You should probably fix the syntax to use read -r and the index variable is really unnecessary.
array=()
while read -r line
do
case $line in *icon*) array+=("$line");; esac
done < ../../file.xml
More sensibly, do it all in one fell swoop, in Bash 4+
readarray index < <(grep 'icon' ../../file.xml)
Probably most sensibly, if the file really is XML, use an XML parser like xmlstarlet to properly identify and extract the structure you want to examine.
readarray index < <(xmlstarlet sel -t -m //icon -c . -n ../../file.xml)
You can use regex:
regex="icon"
index=0
while read line
do
if [[ $line =~ $regex ]]; then
array[$index]="$line"
#If you need cut address uncommend next line and comment before line
#array[$index]="$(sed 's/.*src=\"\(.*\)\".*/\1/' <<< $line)"
index=$(($index+1))
fi
done < ../../file.xml
sed script in the assignment? That might be useful for something but wasn't in the requirements.
arr=($(grep -w 'icon' ../../file.xml))?readarray arr < <(grep -w 'icon' ../../file.xml)