mirror of https://github.com/tLDP/LDP
25 lines
412 B
Bash
25 lines
412 B
Bash
#!/bin/bash
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# t-out.sh
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# Inspired by a suggestion from "syngin seven" (thanks).
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TIMELIMIT=4 # 4 seconds
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read -t $TIMELIMIT variable <&1
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echo
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if [ -z "$variable" ]
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then
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echo "Timed out, variable still unset."
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else
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echo "variable = $variable"
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fi
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exit 0
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# Exercise for the reader:
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# -----------------------
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# Why is the redirection (<&1) necessary in line 8?
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# What happens if it is omitted?
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