On Tue, 10 Nov 2020 08:19:55 +0100
"Loris Bennett" <loris.benn...@fu-berlin.de> wrote:
> Manfred Lotz <ml_n...@posteo.de> writes:
>
> > I have a situation where in a directory tree I want to change a
> > certain string in all files where that string occurs.
> >
> > My idea was to do
> >
> > - os.scandir and for each file
> > - check if a file is a text file
> > - if it is not a text file skip that file
> > - change the string as often as it occurs in that file
> >
> >
> > What is the best way to check if a file is a text file? In a script
> > I could use the `file` command which is not ideal as I have to grep
> > the result. In Perl I could do -T file.
> >
> > How to do best in Python?
>
> If you are on Linux and more interested in the result than the
> programming exercise, I would suggest the following non-Python
> solution:
>
> find . -type -f -exec sed -i 's/foo/bar/g' {} \;
>
My existing script in Perl which I wanted to migrate to Python I used
`-T $file` and called sed
I like the -T which I assume does some heuristics to tell me if a file
is a text file.
--
Manfred
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