d253cfe3b2
POSIX leaves the result of expanding ${#@} and ${#*} unspecified, but ensure
it is numeric.
19 lines
432 B
Plaintext
19 lines
432 B
Plaintext
# $FreeBSD$
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# Although POSIX leaves the result of expanding ${#@} and ${#*} unspecified,
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# make sure it is at least numeric.
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set -- bb cc ddd
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set -f
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lengths=${#*}${#@}"${#*}${#@}"$(echo ${#*}${#@}"${#*}${#@}")
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IFS=
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lengths=$lengths${#*}${#@}"${#*}${#@}"$(echo ${#*}${#@}"${#*}${#@}")
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case $lengths in
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*[!0-9]*)
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printf 'bad: %s\n' "$lengths"
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exit 3 ;;
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????????????????*) ;;
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*)
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printf 'too short: %s\n' "$lengths"
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exit 3 ;;
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esac
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