25 lines
320 B
Bash
Executable file
25 lines
320 B
Bash
Executable file
#!/bin/sh
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# string multiply
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if [ $# -le 1 ]; then
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echo "Usage: ${0##*/} <str> <n>" >&2
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exit 1
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fi
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s="$1"
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shift 1
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while [ $# -gt 1 ]; do
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s="$s $1"
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shift 1
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done
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case $1 in
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''|*[!0-9]*) echo "$1 is not a valid number" >&2; exit 2 ;;
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esac
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i=0
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while [ $i -lt $1 ]; do
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printf "%s" "$s"
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: $((i += 1))
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done
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