大基数转换

Question

是否有任何shell命令大批从一个基站转换到另一个

为前：

Converting 1024-bit binary number into hexadecimal number  

Answer 1

你可以看看bc，here。例如。转换12为二进制（输出碱= 2）

echo 'obase=2;12' | bc 
1100 

并且还dc，here。

还有printf。例如。

printf "%x" 32 
20 

或者你可以用bigint或bignum的Perl。见here。例如。

perl -e '$line="1101111010101101101111101110111111011110101011011011111011101111110111101010110110111110111011111101111010101101101111101110111111011110101011011011111011101111110111101010110110111110111011111101111010101101101111101110111111011110101011011011111011101111110111101010110110111110111011111101111010101101101111101110111111011110101011011011111011101111110111101010110110111110111011111101111010101101101111101110111111011110101011011011111011101111110111101010110110111110111011111101111010101101101111101110111111011110101011011011111011101111110111101010110110111110111011111101111010101101101111101110111111011110101011011011111011101111110111101010110110111110111011111101111010101101101111101110111111011110101011011011111011101111110111101010110110111110111011111101111010101101101111101110111111011110101011011011111011101111110111101010110110111110111011111101111010101101101111101110111111011110101011011011111011101111110111101010110110111110111011111101111010101101101111101110111111011110101011011011111011101111";$hex=unpack("H*",pack("B*",$line));print $hex' 

输出：

deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef 

此外，您还可以使用xxd为十六进制转换为二进制：你给

echo -n $'\x02\x02' | xxd -b 
0000000: 00000010 00000010