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CIDR to netmask in bash.
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| # Return netmask for a given network and CIDR. | |
| cidr_to_netmask() { | |
| value=$(( 0xffffffff ^ ((1 << (32 - $1)) - 1) )) | |
| echo "$(( (value >> 24) & 0xff )).$(( (value >> 16) & 0xff )).$(( (value >> 8) & 0xff )).$(( value & 0xff ))" | |
| } |
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@ckuhtz, I am glad you found it useful!