### How do I convert from decimal to hexidecimal?

 on Mar 08, 2001 at 23:40 UTC Need Help??
Contributed by Anonymous Monk on Mar 08, 2001 at 23:40 UTC
Q&A  > numbers

 Answer: How do I convert from decimal to hexidecimal?contributed by tye ```sprintf "%x", \$num; [download]``` Answer: How do I convert from decimal to hexidecimal?contributed by jmcnamara Use the X, x and # format codes in printf and sprintf: ``` \$num = 15; printf("%X\n", \$num); # F printf("%x\n", \$num); # f printf("%02x\n", \$num); # 0f printf("%#x\n", \$num); # 0xf printf("0x%02x\n", \$num); # 0x0f ``` The last example is excessive but it forces formatting for zero: ``` printf("%#x\n", 0); # 0 printf("0x%02x\n", 0); # 0x00 ``` Answer: How do I convert from decimal to hexidecimal?contributed by line_noise Alternatively, to get the hex in a variable: ```\$octet = 192; \$out = pack "c", \$octet; \$hex = unpack "H2", \$out; [download]``` Edited by davido: Added code tags.

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