11,586 reputation
43968
bio website mattdm.org
location Somerville, MA
age
visits member for 4 years, 1 month
seen 13 hours ago

I've been using Linux and Unix professionally since 1995, mostly in Linux-related sysadmin/systems architect jobs supporting academia. I generally know my stuff, but am very happy to learn something new and to be corrected when I'm wrong. Currently, I am the Fedora Project Leader.


Dec
13
comment delete files having a certain pattern in their names
@glennjackman Yes but no quotes in that case.
Dec
9
comment How to recover my source code that is removed by stupid CentOS automatically?
The directory you stored tour code in without backing it up is called tmp, for "temporary". I'd be careful about who and what you call stupid in this situation.
Dec
1
comment Memory consumption Fail2Ban CentOS
I might investigate why your fail2ban is taking up so much memory, and possibly adjust the configuration. On my system, it's more like 9M!
Nov
24
comment How to make Fedora user a sudoer?
Don't do this. It will change the user's primary group to wheel, which is almost certainly not what you want.
Nov
17
comment Different “history” command output after reconnecting via SSH
So.... Not a file. :)
Nov
16
comment Different “history” command output after reconnecting via SSH
Is there an actual file, or is it just in memory?
Nov
16
comment Get all possible combinations of a word in lower/uppercase letters
for w in {h,H}{a,A}{r,R}{l,L}{e,E}{y,Y}; do echo $w;done
Nov
15
comment difference between gnu tar and tar package in fedora repositories
And you can see that as per Fedora's general policy (n.b. I work on Fedora), those patches were proposed upstream (and it looks like they were committed, too, from the commit ids). So this should all show up in GNU Tar everywhere, eventually.
Nov
10
comment Which file compression software for linux offers the highest size reduction?
Maybe it was a DOS thing? In Unix, the distinction between compression and archiving is commonly made (as you also say), but I've never heard "compactor".
Nov
10
comment Which file compression software for linux offers the highest size reduction?
Can you expand on the distinction between "compactor" and "compressor" that you are making here?
Oct
21
comment taskwarrior recurring tasks which each have a time limit?
@slm Yeah. I want it to show up in my "here's what you should be working on" report, but if I miss it, it's no big deal.
Sep
19
comment How to remove a (group) of softwares that depend on one another?
Oooh. I don't think this is a duplicate. The grep-based solution is dangerous. Better to use yum's own wildcards or in some cases `yum --setopt="clean_requirements_on_remove=1"
Sep
17
comment Why is there an apt-get script set in my cron.daily, I'm on Fedora 20?
If you don't have any particular reason for it, I'd suggest removing it. The native package managers are much better maintained.
Sep
11
comment How to automate Linux server configuration?
@staticx Yes, this isn't comprehensive. There's a whole world of provisioning systems too: Cobbler, Foreman, Satellite/Spacewalk, FAI, Razor, and that's not even getting into cloud stuff.
Sep
11
comment Do files change while passing from ext2 to ext3 to ext4?
@StéphaneChazelas Edited for clarity.
Aug
30
comment Batch delete exif info
Thanks @Mark. Fixed.
Aug
5
comment Make many subdirectories at once
@StéphaneChazelas Yes. I just think it's a good habit to always use, unless there's a very good reason to use plain -exec. It's also the case that the depth options might not be needed at all in the specific scenario needed — could be just find * with the -depth option. (But they're good to generally be comfortable with!)
Jul
21
comment transfer a file to remote dir only if doesn't exist without replacing
What if the file is created in the meantime? Perhaps even more crucially, what if there is some other error in the first connection?
Jul
21
comment How do I diagnose a font rendering problem?
Perfect! Although substituting Arial for Helvetica might count as blasphemy; I went with MgOpen Moderna instead.
Jul
21
comment How do I diagnose a font rendering problem?
@Wilf Yes, I'm using that -- it says Helvetica Regular, and under that, smaller, "system"