description check the reopen functionality
return 0
arguments -- testbuffer.zip cat 0 replace_file_contents 0 "Overwritten\n" cat 0 add newfile.txt "A new file\n" cat 1
file testbuffer.zip testbuffer.zip testbuffer_reopen.zip
stdout
This is a test, and it seems to have been successful.
Overwritten
A new file
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