Did you ever run into a scenario where you ran a job (either a perl process or a java process) and forgot to redirect its stdout and stderr to some files and now your term is also gone. After sometime, you think that the process is not working and you are not able to see the error messages being generated. Without really resorting to snooping techniques like ttysnoop or xwindow solutions, I came across a pretty neat way of intercepting those calls (tested in Linux)
The strace command traces all the system calls and the signals, and if you start grepping on the write calls. Turned out to be quite useful in a crunch scenario, but one should always think about where the stdout and stderr should be redirected.
Hope this helps!
References:
strace -ewrite -p <pid>
The strace command traces all the system calls and the signals, and if you start grepping on the write calls. Turned out to be quite useful in a crunch scenario, but one should always think about where the stdout and stderr should be redirected.
Hope this helps!
References:
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