I need to parse out instances of +word+
line by line (replace +word+
with blank). I'm currently using the following (working) sed regex:
newLine=$(echo "$line" | sed "s/+[a-Z]\++//g")
This violates "SC2001" according to "ShellCheck" validation;
SC2001: See if you can use ${variable//search/replace} instead.
I've attempted several variations without success (The string "+word+" remains in the output):
newLine=$(line//+[a-Z]+/)
newLine=$(line/+[a-Z]+//)
newLine=$(line/+[a-Z]\++/)
newLine=${line//+[a-Z]+/}
and more..
I've heard that in some cases sed is necessary, but I would like to use Bash's built in find and replace if possible.
The substitution in parameter expansion doesn't use regular expressions, but patterns . To get closer to regular expressions, you can turn on extended patterns:
shopt -s extglob
new_line=${line//++([a-Z])+}
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