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https://github.com/dellis23/ispy

Monitor the output of terminals and processes.
https://github.com/dellis23/ispy

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Monitor the output of terminals and processes.

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README 

        
# ispy



`ispy` is a python tool for monitoring the output of terminals and processes.



## Demo



`ispy` watching a `bash` session that lists some files and opens `vim`:



![ispy demo](https://github.com/dellis23/ispy/blob/master/img/ispydemo.gif)



The same thing, using `strace`:



![strace watching writes demo](https://github.com/dellis23/ispy/blob/master/img/ispydemo-strace.gif)



## Installation



    pip install ispy

    

Alternatively, if you aren't a Python person or don't want to install it

(since it must be run as root), you can download a fully packaged 

[`pex`](https://pex.readthedocs.org/en/latest/) file and run without 

installing:



    wget https://github.com/dellis23/ispy/blob/master/bin/pex/ispy.pex?raw=true -O ispy; chmod +x ispy



## Usage



    # ispy 



## Use Cases



 * Watching someone else's terminal

 * Watching the output of a backgrounded process



## Notes



### **Not** intended for production!



It's probably buggy.



This was mainly an exercise in learning about `ptrace` for myself.  I

haven't done anything more than smoke testing on a couple of 

operating systems.



This uses the same system call as `strace` (`ptrace`), which is heavy-handed

and has a performance impact.  It is not recommended to use in production or

against mission-critical applications.  It's also written in Python, so it's even slower.



### Supported OSs



This has been tested as working on:



 * Ubuntu

 * CentOS



This has been tested as **not** working on:



 * OSX



## Thanks



Thanks to the creator and maintainers of [python-ptrace](https://bitbucket.org/haypo/python-ptrace/); this project depends on it.