How to redirect Valgrind's output to a file?

Question

While working with Valgrind tool, i need to log the details produced by valgrind tool. How can I accomplish that? I tried something like,

 valgrind a.out | test
         


        

Answer 1

In addition to the other answers (particularly by Lekakis), some string replacements can also be used in the option --log-file= as elaborated in the Valgrind's user manual.

Four replacements were available at the time of writing:

• %p: Prints the current process ID
  • valgrind --log-file="myFile-%p.dat"
• %n: Prints file sequence number unique for the current process
  • valgrind --log-file="myFile-%p-%n.dat"
• %q{ENV}: Prints contents of the environment variable ENV
  • valgrind --log-file="myFile-%q{HOME}.dat"
• %%: Prints %
  • valgrind --log-file="myFile-%%.dat"