(gdb) break main
     (gdb) run
     (gdb) print &system
     $1 = ( *) 0xf7e68250 
     (gdb) find &system,+9999999,"/bin/sh"
     0xf7f86c4c
     warning: Unable to access target memory at 0xf7fd0fd4, halting search.
     1 pattern found.