[GTALUG] suggestion: naming temp files
lsorense at csclub.uwaterloo.ca
Tue Apr 17 15:01:38 EDT 2018
On Tue, Apr 17, 2018 at 11:43:38AM -0400, D. Hugh Redelmeier via talk wrote:
> I often want temp files.
> Putting them in /tmp means that they will automatically be discarded
> on reboot -- kind of handy. But it means that they are public: they
> are in a space shared with all other users (if you have other users).
> I consider it a bad habit for that reason.
> Lots of people put temp files in the current directory or in their home
> directory. That's what I do. But then, when you come back a week later,
> how do you know that this file is garbage? The best way is to have a
> naming convention.
> Many people use tmp, tmp2, tmp3 as names. I find those visually too like
> real filenames and longer to type than I want. The names I use are 0, 1,
> 2, 3. They are short, distinctive, and unreasonable as permanent
> You can find the litter you left behind with:
> locate -r '/[0-9]$'
> You will notice that the system does have some files that match too so
> you cannot blindly delete all matches.
> To me, it is obvious. But I didn't think of it. I copied this from Chris
> Sturgess almost 30 years ago.
Well on my current Debian system I see a neat variable that looks like this:
That is a tmpfs (ram disk) and each user gets their own.
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=404280k,mode=700,uid=1000,gid=1000)
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