Add command existence check for ping
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@ -51,6 +51,7 @@ check(){
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command_exists 'curl'
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command_exists 'curl'
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command_exists 'nc'
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command_exists 'nc'
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command_exists 'ping'
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mkdir -p "${tmp}/ok" "${tmp}/ko" || exit 1
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mkdir -p "${tmp}/ok" "${tmp}/ko" || exit 1
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while IFS='\n' read -r line; do
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while IFS='\n' read -r line; do
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