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Jul
13
comment Is there a database that speaks pure SQL?
I believe all the DB engines provide extensions to SQL, but all (or most) handle all ISO SQL statements.
Jun
24
comment Is the Modem's MAC Address Public?
Default MAC addresses are unique, but MAC addresses can be changed on the fly. Some network protocols (e.g., DECNet) set MACs directly. Some topologies work better if all interfaces on a given host have the same MAC. MACs on the wire are not unique. Look up SIOCSIFHWADDR.
Jun
23
comment Is the Modem's MAC Address Public?
Nor are MAC addresses unique
May
22
comment Is Tar a suitable archiving solution for numerous backups of data from the same folder?
If you have a single tar archive file to which you make numerous updates, the changed files are appended to the archive, rather than replacing their earlier versions.
May
14
comment Running a computer without Integrated Graphics or Dedicated GPU
You'd need a text-only browser (e.g., lynx). Y'know, there are actually computers outside the Windows/Mac model. You may have heard of things called "terminals"?
Apr
23
comment What type of connector is on this NAS-like storage device?
Might you ever need a console connection to the storage box, say to configure new or replacement disks?
Apr
23
comment What type of connector is on this NAS-like storage device?
Yes, it's the same connector as used for most phone lines. That's why they were used: cheap and readily available. What the vendor and model of your "NAS kind of box?" They'll probably have the documentation.
Apr
13
comment Use of variables withing singlequotes, CSH
recommendation: use sh/ksh/bash for scripts. Csh has inconsistencies in command line parsing in different points, and it leads to lengthy and frustrating debugging
Mar
26
comment Find text and replace paragraph as a style
Can you have the regex match the entire paragraph?
Mar
8
comment remove <200b> character from text file
Depending on how "huge" the text file is, some text editors won't work on it.
Mar
1
comment Fonts broken in Libre/Open Office Math
Under the Format tab, there's a "fonts" entry. Does it reflect fonts you have available? Alternatively, have you loaded the Liberation fonts (the defaults) from the same source you downloaded LibreOffice?
Feb
24
comment Have a different style set in different sections of the same Word document
If you keep the separately formatted sections in different files, there are Word add-ins that claim to retain the formatting. Using Word to merge them directly will mess up the formatting.
Feb
22
comment Logging incoming SCP connection
sshd has several logging options. It will reread that config file (if you change it) when it receives SIGHUP. The config file includes a LogLevel option, or the command line allows -d (for debug level) and -E <file> (for log file). See the sshd man page for more details
Feb
22
comment How to configure linux to enforce new users to change their password on first login
Using adduser lets you put the chage command in /usr/local/sbin/adduser.local. You can also set the age field in /etc/shadow to 0 directly. useradd is the "low level utility," intended to be used in conjunction with other commands.
Feb
21
comment How can I keep a reference version of a computer?
I believe the concept you're looking for is a "backup".
Feb
19
comment how to get IP history of an network connected computer
Your DHCP server should have the logs.
Feb
17
comment bash: adding a common string to files found with wildcards
I'd probably copy the files to a local directory, the mv them out with the new name.
Feb
13
comment How do I save a string of numbers from an ongoing command to a list in a shell script?
did you notice the pipe character in the front? Just add on the end of your xev pipeline
Feb
12
comment How do I save a string of numbers from an ongoing command to a list in a shell script?
| while read kk; do echo "xdotool keydown $kk && xdotool keyup $kk &&"; done; echo true
Feb
8
comment Are CPU clock ticks strictly periodic?
The variance is not a function of the CPU, it's more related to the motherboard, temperature fluctuations, etc. How much accuracy do you need, over what period?