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jclosure/bash_grep_into_array.sh

Created January 10, 2018 02:05
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Bash read file for pattern matches and load into array
Raw
bash_grep_into_array.sh
#!/bin/bash
FILE="some_file.txt"
PATTERN="some pattern"
RANGE=`grep -n $PATTERN $FILE | cut -d : -f 1`
while read -r line; do LINES+=("$line"); done <<<"$RANGE"
for line in "${LINES[@]}"
do
echo "-> $line"
done
FIRST=${LINES[0]}
LAST=${LINES[${#LINES[@]}-1]}
echo "first: $FIRST last: $LAST"
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