fast-replace/bash-fast-replace/bin/corpus.sh

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#! /bin/bash
# Makes a file with a number of key values
START=$(date +%s)
BASE=$(dirname $(dirname $(realpath -s $0)));
AMOUNT=1000
FILE_NAME="corpus.csv"
FULL_PATH="$BASE/csv/$FILE_NAME"
if [ -f "$FULL_PATH" ]; then
rm "$FULL_PATH"
fi
echo "Generating csv/$FILE_NAME..."
KEY_LEN=${#AMOUNT}
LINE_LEN=`expr 100 - $KEY_LEN`
for (( i = 0; i < "$AMOUNT"; i++ )); do
KEY=$(printf "%0${KEY_LEN}d\n" $i)
LEN1=$(shuf -i "0-$LINE_LEN" -n 1)
LEN2=`expr 100 - $LEN1`
PART1=$(shuf -er -n "$LEN1" {a..z} | paste -sd "")
PART2=$(shuf -er -n "$LEN2" {a..z} | paste -sd "")
echo "$PART1$KEY$PART2" >> $FULL_PATH
done
shuf "$FULL_PATH" > "$BASE/tmp.csv" && mv "$BASE/tmp.csv" "$FULL_PATH"
END=$(date +%s)
SECONDS=`expr $END - $START`
echo "$FILE generated in ${SECONDS}s"