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opplatek/fill_number_digits.sh

Created September 28, 2023 08:22
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Fill (prefix zeros) number of digits to predefined number
Raw
fill_number_digits.sh
#!/bin/bash
DIGIT=52
TARGET_DIGITS=4
# Easier
echo $(printf "%0${TARGET_DIGITS}d" ${DIGIT})
#0052
# More complicated
FILL=$(echo $TARGET_DIGITS - ${#DIGIT} | bc)
echo $(printf '0%.0s' $(seq 1 "$FILL"))${DIGIT}
#0052
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