582 reputation
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bio website bit.ly/GFscreener11
location stackoverflow.com@askmarcos.com
age
visits member for 2 years, 4 months
seen Apr 14 at 11:44

Pioneers are the ones with arrows in their backs.

Investment Portfolio Software, Trade Automation

Designer of infinite compression algorithms, and other research projects


Mar
23
comment sort at jobs chronologically
On one host with 200+ jobs the output seems to be sorted by id mainly--not always timestamp in the 2nd half. Anyway, the date command has special timestamp-parsing powers that could make this simpler when fed the right fields eg. with cut.
Mar
23
asked sort at jobs chronologically
Mar
14
awarded  Self-Learner
Mar
14
comment Tell fs to free space from deleted files NOW
Good point. Even though I'm one of those who live and die by the command line, and rarely use graphical file manager. Haven't yet noticed that expunged folder as a hiding place though--an Empty Trash click had always been final and returned my disk space when needed.
Mar
14
comment Tell fs to free space from deleted files NOW
I agree; an mkfs these days should reserve eg. 5% or 300MB, whichever is less. Just re-tuned some of my servers to 2% and freed GBs back!
Mar
14
comment Is there an easy way to replace duplicate files with hardlinks?
I think I will update my cp alias to always include the --reflink=auto parameter now
Mar
14
comment Tell fs to free space from deleted files NOW
sync never helped. As for logs, it's an Ubuntu system so it's pretty buggy, so yeah they're typically noisy. apport has be deploying often because every nightly apt-get update crashes, though /var/crash has only 77MB. Also noticed atd has flooded /var/log/syslog with repeating lines like atd[8892]: File a0015c0152ab76 is in wrong format - aborting probably since the few files in /var/spool/cron/atspool were all 0 sized, making the problem circular of course
Mar
14
comment Tell fs to free space from deleted files NOW
Good. Showed me some mysqld locks in /tmp, but many apport-gt uses of extinct files in /var/lib/apt/lists/partial/ that apparently have been accumulating. So I might killall apport-gt but will investigate it first.
Mar
14
answered Tell fs to free space from deleted files NOW
Mar
14
revised Tell fs to free space from deleted files NOW
less info
Mar
14
asked Tell fs to free space from deleted files NOW
Mar
14
answered Is there an easy way to replace duplicate files with hardlinks?
Mar
11
comment How can I disown a running process and associate it to a new screen shell?
The secondary/implicit issue in this question I can't fathom is...why did the shell choose to disown a suspended job when there is a newer/just launched one in background that doesn't even need/wait for stdin? This is the treatment I've gotten used to so don't know what went different here...
Mar
8
comment How can I disown a running process and associate it to a new screen shell?
Yeah that saved it, thanks! I read the author's website how it works better than similar or older tools eg. for ncurses programs.
Mar
8
comment How can I disown a running process and associate it to a new screen shell?
From questions like unix.stackexchange.com/a/4039/13496 I'm hearing about retty and neercs. Hmmm... wonder if there's smth like a "screen here" layer before I run a process next time should I lose the top terminal in the future, that will make it easy to snap back in the stdin/out/err
Mar
8
asked any way to un-disown / re-attach an interactive process to the tty?
Mar
6
comment How to schedule something run once using anacron?
Just realized that too won't work if server comes back up eventually, anacron runs, and those at schedules are already in the past--would be interpreted as tomorrow
Mar
6
comment How to schedule something run once using anacron?
If so, thanks--I'll have to re-check my observations on that though. For sure crontab doesn't act like that, so based on your comment, I may need to convert some of my mission-critical crontab lines to at jobs launched by anacron.daily to run at their specific crontab times
Mar
6
comment How to schedule something run once using anacron?
Sounds like could be part of the solution; how would my programs go about scheduling (or avoid scheduling) arbitrary jobs+future parameters like they do now with at? To run only once at a future date/hour/minute, or next uptime following that appointment.
Mar
6
comment How to schedule something run once using anacron?
That helped me understand how the stuff in /etc/anacrontab works, thanks. I considered hacking my own interface on top of anacron, till I noticed its built-in scheduling isn't more granular than a full day (contrasted with 1min in cron).