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dnyall/get-random-unused-port

Last active August 13, 2024 13:44
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get random unused port (bash)
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get-random-unused-port
ruby -e 'require "socket"; puts Addrinfo.tcp("", 0).bind {|s| s.local_address.ip_port }'
# OR
comm -23 \
<(seq "$FROM" "$TO") \
<(ss -tan | awk '{print $4}' | cut -d':' -f2 | grep '[0-9]\{1,5\}' | sort -n | uniq) \
| shuf | head -n "$HOWMANY"
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