Another, but probably less efficient way, is to open the file in append mode. If the open fails the file COULD be read-only:

open(FILE, ">>some_file.txt") || print "File is read only";

The advantage of this way, I suppose, is that if you really want to write things to the end of the file then it's now open :)

In reply to Re: How do I test if a file has write permission? by fx
in thread How do I test if a file has write permission? by ChuckularOne

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