Linux Bash find files on user input with multiple -name clauses - linux

Question

I am trying to create small utility to collect log files from remote host by creating tar ball, for simplicity assume for now assume to just display list of files based on user input.
This command works fine
find $LOGS_DIR -maxdepth 1 -type f \( -name 'process1.log*' -o -name 'process2.log*' \) -exec echo 'FOUND_FILES:{}' ';'
If i programmatically want to update -name clause based on the user input, say for example user input is process3.log*, process4.log*, process5*.log then my bash script should generate find command as
find $LOGS_DIR -maxdepth 1 -type f \( -name 'process3.log*' -o -name 'process4.log*' -o -name 'process5.log*' \) -exec echo 'FOUND_FILES:{}' ';'
Here is my snippet
...
for pattern in "${file_pattern_to_match[#]}"
do
if [ -z $final_pattern ];then
final_pattern="-name $pattern"
continue;
fi
final_pattern="$final_pattern -o -name $pattern"
done
#This will print final_pattern: -name process3.log* -o -name process4.log* -o -name process5.log*
echo "final_pattern:$final_pattern"
find $LOGS_DIR -maxdepth 1 -type f \( $final_pattern \) -exec echo "FOUND_FILES:{}" \;
But the issue is while executing the script find is evaluated as
find /x/path/logs -maxdepth 1 -type f \( -name process3.log.1 process3.log.2 -o -name process4.log.1 process4.log.2 \) -exec echo "FOUND_FILES:{}" \;
But the expected is
find /x/path/logs -maxdepth 1 -type f \( -name "process3.log.*" -o -name process4.log.* -o -name process5.log.* \) -exec echo "FOUND_FILES:{}" \;
because the variable got expanded "find" is exiting with an error
Can someone please help me how to get the expected result above?

Answer 1

Use an array to keep each argument properly quoted.
first=
for pattern in "${file_pattern_to_match[#]}"
do
if [ -z "$first" ]; then
final_pattern=(-name "$pattern")
first=1
else
final_pattern+=(-o -name "$pattern")
fi
done
# Hacky
# first=
# for pattern in "${file_pattern_to_match[#]}"
# do
# final_pattern+=($first -name "$pattern")
# first=-o
# done
find "$LOGS_DIR" -maxdepth 1 -type f \( "${final_pattern[#]}" \) -exec echo "FOUND_FILES:{}" \;