25 lines
719 B
Bash
Executable File
25 lines
719 B
Bash
Executable File
#!/bin/bash
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cowsaidfile="$(mktemp)"
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printf "Writing cows to temporary file \"%s\"\\n" \
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"$cowsaidfile"
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cowsay "E T E R N A L" > "$cowsaidfile"
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trap_exit() {
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printf "\\n"
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cat "$cowsaidfile"
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rm "$cowsaidfile"
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}
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trap trap_exit EXIT
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iterations=1
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while true; do
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# Shut up shellcheck; that's the whole point. cowsay does a full read
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# before it writes back to the file anyway.
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# shellcheck disable=2094
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cowsay -n < "$cowsaidfile" 1<> "$cowsaidfile"
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iterations=$(( iterations + 1 ))
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# This line will only ever grow larger, so we don't need to clear it
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# before overwriting it.
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printf "\\r%s iterations, %s bytes of cowsay; hit Ctrl+C to dump them" \
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"$iterations" \
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"$(stat --printf="%s" "$cowsaidfile")"
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done
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