It sometimes comes up that the usual trick of reading in a stream with a pipe and a while loop doesn't work, since the pipe causes a subshell and any variables set in the subshell are unavailable to the parent.
For example the normal trick (output the first few lines of the /etc/services file, just the first two columns and not empty or comment lines):

[uphill@zagreb]: grep -v ^# /etc/services | grep -v ^$ | head | awk '{print $1" "$2;}'
tcpmux 1/tcp
tcpmux 1/udp
rje 5/tcp
rje 5/udp
echo 7/tcp
echo 7/udp
discard 9/tcp
discard 9/udp
systat 11/tcp
systat 11/udp


Sometimes it's easier to write a quick script in bash that uses arrays rather than figure out how to do it with something more appropriate like awk or perl.

It's really very quick and simple. To start, declare your variable as an array


[uphill@host]: declare -a myvar

If the array is going to be global then add x to export it.


In RHEL4 and possibly other distros. The .Xdefaults file is not used, the file is now called .Xresources In /etc/X11/xinit/xinitrc-common, xrdb is passed .Xresources _after_ /etc/X11/Xresources. You can make systemwide changes in /etc/X11/Xresources, but they will be overridden by changes to .Xresources.

I'm hoping that someone else has a better solution for this one. We have a pocketpoint remote that works quite well for Power point presentations, but for Acrobat Reader the keybinding is not good. The remote sends p for prior/previous and n for next, which is understood by powerpoint and not by Adobe. I wrote the following lame script to fix this. It works for the most part, but you lose the p and n keys during the presentation. [includecode#../scripts/pocketpoint]

First run xev to see what the keycode is for your Windows Key On my keyboard it is 115 and is bound to Super_L.

This laptop is 100% Lenovo. It's a lot different! I did get the ATI driver working. Update, the ChipID hack is no longer needed, Release 8.25.18 adds support for the V5200.

Sleeping

Finally, 2.6.17-rc6 is able to make this thing sleep and wake properly, phew. Ok, I seem to have a working RPM, so I'll post it, let me know if you have issues with this rpm, I've resumed a few times without issue. This is the Fedora RPM with all the patches but 2.6.17-rc6 removed.

approaches limit \doteq
models \models
appr

amalgamation \amalg
logical and \wedge ∧

I sometimes have to transfer files with spaces in the names, I like using a for loop, but the usual way doesn't work. Usual way: for file in `find . -type f|grep .ext$` do /do/something/to $file done To get around this I use a while loop with a read instead. Using the read will read to the end of the line, enclosing within quotes escapes the spaces. Unusual way: find .

A α Alpha A \alpha N ν Nu N \nu

Slides from LISA 2019 Linux systems troubleshooting #LISA2019 https://t.co/D4dMKflK6R Tue Oct 29 05:59:30 +0000 2019

https://t.co/AGeihMALAv configuring grub2 with EFI Fri Sep 13 05:20:01 +0000 2019

I published a Thing on @thingiverse! https://t.co/IYpRyEb7Hz #thingalert Tue Jul 23 19:27:57 +0000 2019

Nokogiri install on MacOSX https://t.co/v3An0miW9L Fri Jul 12 15:06:49 +0000 2019

HTML email with plain mailer plugin on Jenkins https://t.co/Z6FSDMDjy8 Thu Jul 11 21:07:25 +0000 2019