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Mar
10
comment How can I get my external IP address in bash?
I found this to be ~19x faster than curl http://canhazip.com. See askubuntu.com/a/427092/2273
Feb
12
answered How to define a Bash function that can be used by different scripts
Nov
8
awarded  Notable Question
Sep
24
awarded  Autobiographer
Jul
4
awarded  Popular Question
Apr
24
awarded  Commentator
Apr
24
comment /etc/cron.daily/foo : Send email to a particular user instead of root?
Note for CentOS 6.5 (cronie) users: /etc/crontab does not specify defaults.
Apr
24
comment /etc/crontab permissions
"/etc/crontab is the main - crontab - resposible for triggering cron.daily, weekly" - That is only true for Debian. See the crond(8) manpage.
Oct
8
awarded  Notable Question
Apr
2
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Dec
31
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Jun
29
awarded  Yearling
Mar
14
comment What's faster, dd 1.5TB or rsync 500GB?
It also makes sense that, if the disk were full (1.5TB of actual non-sparse data), rsync would be slower than dd.
Mar
14
comment What's faster, dd 1.5TB or rsync 500GB?
My buddy kormoc tells me: "kernel <-> userspace is just memory copies. It copies way faster then the disk actually responds, so it's almost free. DD still does the kernel -> user -> kernel layer changes as well. dd does not run in kernel space."
Mar
14
accepted What's faster, dd 1.5TB or rsync 500GB?
Mar
14
comment What's faster, dd 1.5TB or rsync 500GB?
Awesome, thanks! For some reason I thought moving data between kernel-space and user-space was expensive, and dd avoids this, but I might be making that up.
Mar
14
asked What's faster, dd 1.5TB or rsync 500GB?
Dec
7
awarded  Nice Question
Dec
6
comment Are multiple @daily crontab entries processed in order, serially?
@daily is slightly different than /etc/cron.daily. The former is an alternate syntax for use in a crontab. Also have a look at run-parts. My system uses run-parts to run programs in /etc/cron.daily. According to the run-parts(8) manpage, "Files are run in the lexical sort order of their names...".
Dec
6
accepted Are multiple @daily crontab entries processed in order, serially?