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Dec
28
comment how to backup before update
Process juggling aside, all this really does is image a partition. This question is more about backing up system stuff only—in particular, things related to video drivers. There's gotta be something more specific that doesn't dump a potentially massive image somewhere.
Dec
28
comment how to backup before update
Well, that's not convoluted at all. What's it supposed to do? Get dd to print its progress periodically? There's gotta be a better way to get a child process's PID from within a shell…
Dec
13
comment Why is gpg getting upset and how do I stop it?
--always-trust is a good solution in some cases, but if the key in question really is the user's own key, then it should just be given ultimate trust.
Dec
8
comment Confusion between archiving and compressing?
IMO, filename extensions should only be used as hints, not as absolute indicators of what kind of file it is. If you want an absolute indicator, use the file itself.
Nov
27
comment Can someone harm my computer just using grub?
@xdhmoore Well, sure. If you're running hardware from the early 90s, you'll probably notice the performance hits of FDE. Personally, I've run Linux distros out of a LUKS container and OS X systems with FileVault 2, and I've never noticed a difference.
Nov
25
awarded  Self-Learner
Nov
22
comment Verifying Ubuntu ISO with `md5sum` - does the missing “*” matter?
You're right to be cautious, though as kos said, the only thing that really matters is that the hashes of the files match. That said, while (as far as I know) there are no practical preimage attacks against MD5, there is a theoretical one, and I believe the general consensus is that, for pure hashes, MD5 should be avoided in favor of SHA (and preferably at least SHA-2). Personally, MD5's theoretical vulnerability is enough to make me use something better whenever possible.
Sep
19
comment File disappeared after cutting name when renaming
And see this question for more on dotfiles.
Sep
19
asked Why doesn't wlan0 get added to the Ethernet bridge at boot?
Sep
18
comment Timestamp, year 2038 problem for 64 bit Ubuntu system
64-bit timestamps is another one of those stopgap measures. What about the people working on Project Utopia in 100,000,000,000,000 CE? They're going to need functional computer systems, too! Using 128-bit timestamps would let us uniquely identify any time from not only this iteration of the universe, but many, many others.
Jul
20
accepted I hit control-c in a do-release-upgrade subprocess. How do I recover?
Jul
17
asked I hit control-c in a do-release-upgrade subprocess. How do I recover?
Jul
17
revised Closed terminal by mistake while installing new kernel
removed [do-release-upgrade]
Jul
17
comment Closed terminal by mistake while installing new kernel
What does this have to do with do-release-upgrade? Removed.
Jul
17
suggested approved edit on Closed terminal by mistake while installing new kernel
Apr
19
comment Lame compress mp3 files recursively
Instead of invoking find (for file in $(find . -name "*.mp3")), you could shopt -s globstar (for bash) and use for file in **/*.mp3.
Apr
19
comment Lame compress mp3 files recursively
cat $file | $program is equivalent to $program <$file, except for the unnecessary cat invocation (and the overhead associated with kicking off an extra process, etc). In general, you should avoid the first form. find . | $program is similarly preferable to find . >$file; $program <$file; in that it avoids creating an unnecessary file, unless you'll be reusing the list, in which case it might be preferable to write it out to a file first.
Apr
16
revised How do I prevent one user in particular from accessing my home directory?
rewrote title and body for clarity; removed inapplicable tags
Apr
16
suggested approved edit on How do I prevent one user in particular from accessing my home directory?
Apr
15
comment How do I prevent one user in particular from accessing my home directory?
@bodhi.zazen They restrict access at different levels, one of which is not applicable here. Encrypting your home directory won't prevent other users on the system from accessing it when it's mounted; restrictive permissions on the mountpoint (or a parent directory) will.