I'm trying to use the output of a command as argument for my program that i'm trying to debug.
I created the following profile, similar to using a command output for stdin
$ cat profile.rr2
#!/usr/bin/rarun2
arg1=!cat payload
However, this does not add a argument and gives the following warning if the debug process is started using the profile
WARNING: r_str_trim_tail: assertion 'str' failed (line 173)
Is it even possible to define the output of a command as argument with a profile?