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Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):
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splits a postscript file into multiple postscript files. for each page of the input file one output file will be generated. The files will be numbered for example 1_orig.ps 2_orig.ps ...
The psselect commad is part of the psutils package
This command shows a high level overview of system memory and usage refreshed in seconds. Change -n 10 to you desired refresh interval.
Uses the pid to get the full path of the process. Useful when you do not which command got picked from the path
This got a bit complicated, because I had to introduce an additional dot at the end that has to be removed again later.
Combines a few repetitive tasks when compiling source code. Especially useful when a hypen in a file-name breaks tab completion.
1.) wget source.tar.gz
2.) tar xzvf source.tar.gz
3.) cd source
From there you can run ./configure, make and etc.
This is just a little snippit to split a large file into smaller chunks (4mb in this example) and then send the chunks off to (e)mail for archival using mutt.
I usually encrypt the file before splitting it using openssl:
openssl des3 -salt -k <password> -in file.tgz -out file.tgz.des3
To restore, simply save attachments and rejoin them using:
cat file.tgz.* > output_name.tgz
and if encrypted, decrypt using:
openssl des3 -d -salt -k <password> -in file.tgz.des3 -out file.tgz
edit: (changed "g" to "e" for political correctness)
Transfer files with rsync over ssh on a non-standard port, showing a progress bar and resuming partial transfers.
Mac install ssh-copy-id
From there on out, you would upload keys to a server like this:
(make sure to double quote the full path to your key)
ssh-copy-id -i "/PATH/TO/YOUR/PRIVATE/KEY" username@server
or, if your SSH server uses a different port (often, they will require that the port be '2222' or some other nonsense:
(note the double quotes on *both* the "/path/to/key" and "user@server -pXXXX"):
ssh-copy-id -i "/PATH/TO/YOUR/PRIVATE/KEY" "username@server -pXXXX"
...where XXXX is the ssh port on that server
It will parse the unique_id stanza in ODM database to get the DMX id.
zsh has a powerful correction mechanism. If you type a command in the wrong way it suggests corrections. What happend here is that dir is an unknown command and zsh suggests gdir, while maybe ls was what you wanted.
If you want to execute gdir hit y (yes)
If you want to try to execute dir anyway hit n (no)
If you want to execute completely different spelt command like ls hit a (abort) and type your command
If you want to execute a similar spelt commant like udir hit e (edit) and edit your command.
Finds all nfo files without the filename movie.nfo and deletes them.
This script first find all files which contains word xxxxx recursively. Then replace the word xxxxx to yyyyy of the files.
- Web site domain change
- Function name change of the program
FreeBSD version of the Linux command
mount discimg.iso /cdrom -o loop
The "mdconfig" command creates a device and prints the name (typically "md0"). Just append that to "/dev/" and mount.
Once unmounted, you can unconfigure the device with
mdconfig -d -u 0
using "0" for md0, "1" for md1, etc.
Useful for finding out quickly if you're still in the same filesystem or are in a descendant of a symbolic link or mountpoint. For plain text output, unset the color substitutions or strip them from the function.