There is a lot of stuff I end up wanting to refer to later. I'm putting some here.
Doing it this way seems to work across the console and X:
Edit /etc/default/keyboard and set:
XKBOPTIONS=ctrl:nocaps
If you already have XKBOPTIONS set, append ctrl:nocaps to its existing value using a comma for separator, e.g.:
XKBOPTIONS="terminate:ctrl_alt_bksp,ctrl:nocaps"
Should be effective after next reboot or issuing the setupcon command.
- os x - pipe to
pbcopyfor clipboard - os x - sharing:
create share points for afp, ftp and smb services.
A new utility on OS X Mountain Lion which lets you quickly share directories from the command line, e.g.:
sudo sharing -a /Users/you/yourshare
# list directory sizes
$ du -sh *
# count all occurrences of a string in a directory
$ grep -roh lorem . | wc -w
# watch a remote log
$ ssh user@server "tail -f /var/log/apache2/error.log"
# Create directories a through z inside log/users/, creating any parent directories that don't exist yet too.
$ mkdir -p log/users/{a..z}
# brace expansion example
$ mkdir -p drupal/sites/all/modules/{contrib,custom,patched,features}
# launch program and ditch so term can be closed
$ <command> & disown
# df with posix mode, don't make 80 columns wide
$ df -hP
cat <file> | tee output.txt | grep <term>
- grep -r -i somethingtosearchfor ./
- pgrep - search processes
- ngrep - monitor network activity
# Split a file called largefile into 1 gigabyte pieces called split-xaa, split-xab, split-xac ...
$ split -b 1G verylargefile split
# Join the splits back together
$ cat split-xaa split-xab split-xac > rejoinedlargefile
# Here is a way to join the files together with brace expansion. Be mindful of filenames and order.
$ cat split-xa{a,b,c} > rejoinedlargefile
/usr/local/bin/rsync --info=progress2 --modify-window=1 -rltvh --no-perms /var/run/importcopy/tmpdir/dev/da3p1/ /mnt/storpool/share
rsync -essh -rtpvz rocks. Really, there’s nothing more to say. Learn it. Use it. Love it. Here’s a good rsync anecdote: in my last job, I worked on a project that was doing daily (and sometimes more-than-once-per-day) builds of a 100 MB installer. Near the end of the release cycle, we were putting each daily build on a private web server for the client to download and test. Uploading the entire build took over a hour on my capped DSL line. It turns out that the fastest way to do this is to ssh into the server, duplicate yesterday’s build to a file with today’s date, then rsync today’s build up to the server. rsync magically figures out which parts of the installer have changed (usually not more than a few KB) and synchronizes the build in under a minute. I have no idea how it does that. I read once that it was somebody’s PhD project. Thank God for smart people.