233 reputation
18
bio website
location
age
visits member for 1 year, 11 months
seen Oct 8 at 23:10

Sep
20
answered How to print (Cups, lpr, whatever…) in grayscale in a _generic_ way?
Jul
21
awarded  Popular Question
May
12
awarded  Teacher
May
11
comment fail2ban permission denied on script
Thanks for the comment. I found the solution, which had nothing to do with Python. Mind you, that I have the RHEL version of fail2ban, which uses os.system(). Adding a log message to print out the exact command used made me eventually get to the answer (see below). I would like to understand, though, how would you suggest that I enable debugging log level without changing code? I guess that's another question...
May
11
accepted fail2ban permission denied on script
May
11
answered fail2ban permission denied on script
Apr
23
revised fail2ban permission denied on script
made log output simpler (and correct), put `id` elsewhere
Apr
23
asked fail2ban permission denied on script
Dec
23
comment Is there a reason why 'owner' permissions exist? Aren't group permissions enough?
That might be. What I tried to emphasize is that currently each file record holds two IDs (group, owner) and a bitmask. Wouldn't it be more effective (again, the cost/gain argument) to just hold four IDs? (execute group, read group, write group, owner)
Dec
9
awarded  Popular Question
Nov
12
awarded  Yearling
Jul
19
comment How to cache or otherwise speed up `du` summaries?
Bruce - you could ask the same question about find. But then there's locate.
Jul
19
answered How to cache or otherwise speed up `du` summaries?
Apr
6
revised How to make tar globbing work with the 'change directory' option
previous command didn't work right
Apr
6
answered How to make tar globbing work with the 'change directory' option
Apr
6
comment How to make tar globbing work with the 'change directory' option
Indeed, if results.a.log exists in the directory from which the script is run, it works. But I don't understand why this happens, since -C stands for change directory, so the current directory should be the one with results.a.log. I can't accept your answer because you don't offer a solution.
Apr
6
asked How to make tar globbing work with the 'change directory' option
Nov
13
comment Is there a reason why 'owner' permissions exist? Aren't group permissions enough?
Excellent answer, and I enjoyed learning about older 'man's. However, I have some reservations about what you said. A simpler system, which can actually do almost (if not exactly) as much as ACLs, is let each of the 'rwx' permissions carry a group (rather than the other way around). That is, you'll have a read group, a write group and an execute group. If really needed for OS purposes, you can attach an owner to the file. That way you can also specify a special 'owner' group and an 'everyone' group. Other than hierarchy, I think this covers everything, including simplicity and orthogonality.
Nov
13
awarded  Scholar
Nov
13
awarded  Supporter