Yes, I believe you're correct regarding the strace. I recall now that the documentation is not 100% truthful as to what is happening behind the scenes. If you use -i.bak instead of -i, you'll probably see an open/rename/open/read+write/close/close instead of open/unlink...


Dave

In reply to Re^4: read file line by line then do something and write to same file by davido
in thread read file line by line then do something and write to same file by john.tm

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