sh Bash：echo：obase，ibase，bc：将二进制转换为十进制，将十进制转换为二进制

Posted 2021-05-07

#!/bin/bash

dec=100     # decimal
bin=1100100 # binary

echo "obase=2;$dec" | bc      # 1100100 (decimal to binary)
echo "obase=10;ibase=2;$bin" | bc # 100 (binary to decimal)