Emacs 24 kill-region and yank

To restore the old kill-region and yank behaviour, add the following to .emacs:

(setq x-select-enable-clipboard nil)
(setq x-select-enable-primary t) 
(setq  mouse-drag-copy-region t)
(setq select-active-regions nil)
(global-set-key [mouse-2] 'mouse-yank-at-click)

Emacs-24 Space bar () complete file

This was changed to allow entering file name with space without quote.  The old behaviour can be restored with

class="lisp">(define-key minibuffer-local-filename-completion-map (kbd "SPC")
       'minibuffer-complete-word)
     
(define-key minibuffer-local-must-match-filename-map (kbd "SPC")
       'minibuffer-complete-word)

gpg hangs

I am not sure why it hangs, since I have a lot of entropy.

$ cat /proc/sys/kernel/random/entropy_avail
4096

The solution worked for me is "Ctrl-z" then type "fg".  I do not know why suspend then restart it would make a difference.  This is on Centos 5.

This is a workaround rather than a permanent fix.

using strace on it also wakes it up.

wireshark command line capture

tethereal -i eth0 -w mycapture.pcap

sending SIGTERM or SIGINT (ctrl-c) will cause it to exit cleanly.

Serial Port in Linux

stty

stty -F /dev/ttyS10 
stty -F /dev/ttyS10 -a
stty -F /dev/ttyS10 230400 crtscts
stty -F /dev/ttyS10 230400 -crtscts

http://www.armadeus.com/wiki/index.php?title=Serial_ports_usage_on_Linux

minicom

minicom -s

minicom ttys10  (ttys10 is a saved config)

ctrl-a q (quit)
ctrl-a o (config)
ctrl-z (help)

screen

screen /dev/ttyS10 115200 
screen /dev/ttyS10 115200,crtscts 

ctrl-a K  (kill)
ctrl-a d  (detach)
ctrl-a i  (status)

$ sudo screen -ls
There are screens on:
        7578.pts-0.fedora (Detached)
        7575.pts-0.fedora (Detached)
        2009.pts-0.fedora (Detached)
$ sudo screen -r 7578 -X kill
$ sudo screen -r 7575 -X kill
$ sudo screen -r 2009 -X kill
$ sudo screen -ls
# copy and paste
C-a : bufferfile /etc/passwd
C-a < C-a ]
C-a : bufferfile
No Sockets found in /var/run/screen/S-root.