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unixshellhex

Convert decimal to hexadecimal in UNIX shell script

In a UNIX shell script, what can I use to convert decimal numbers into hexadecimal? I thought od would do the trick, but it's not realizing I'm feeding it ASCII representations of numbers.

printf? Gross! Using it for now, but what else is available?

Solution 
  • echo "obase=16; 34" | bc

    If you want to filter a whole file of integers, one per line:

    ( echo "obase=16" ; cat file_of_integers ) | bc