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-rw-r--r-- | entries/meghasinghania22/bash/script.sh | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/entries/meghasinghania22/bash/script.sh b/entries/meghasinghania22/bash/script.sh new file mode 100644 index 0000000..0cbba4d --- /dev/null +++ b/entries/meghasinghania22/bash/script.sh @@ -0,0 +1,27 @@ +#!/bin/bash +int_regex='^[0-9]+$' +function fib(){ + if [ "$1" -le 1 ]; then + echo $1 + else + echo $[`fib $[$1 - 1]` + `fib $[$1 - 2]` ] + fi +} + +function main(){ + echo -n "Enter a whole number: " + read num + + if [ -z "$num" ]; then + echo "Uh oh! Argument required!" + elif ! [[ "$num" =~ $int_regex ]]; then + echo "Uh oh! Argument must be a number :|" + elif [ "$num" -lt 0 ]; then + echo "Uh oh! Argument must be a whole number :|" + else + fib $num + fi + +} + +main
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