Commands by quadcore (2)

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website recursive offline mirror with wget
website recursive offline mirror with wget

Binary clock
cryptic version

Explanation of system and MySQL error codes
perror should be installed if mysql-server package is installed

from within vi, pipe a chunk of lines to a command line and replace the chunk with the result
The vi key sequence !}command will send the file contents from the cursor to the next blank line as STDOUT to the command specified and replace that sequence of file lines with the output of the command. For example: sorting a block of data - !}sort The sequence !{command will do the same but "upwards" (from the current position towards the start of the file.

Mirror the NASA Astronomy Picture of the Day Archive
Mirror the entire NASA Astronomy Picture of the Day archive, all the way from 1995. The archive is close to 2.5 GB, with lots of files, so give it some time. The logs can be redirected to a file using '-o somefile'. You might also want to try '-nH' and the '--cut-dirs' options

Remove everything except that file
it will remove everything except the file names matching you can use also use wildcards

Show account security settings
Show account security settings

tail: watch a filelog
-f file(s) to be monitorized -n number of last line to be printed on the screen in this example, the content of two files are displayed

Create a file server, listening in port 7000
At client side: tar c myfile | nc localhost 7000 ##Send file myfile to server tar c mydir | nc localhost 7000 ## Send directory mydir to server

Speed up launch of liferea
If you use liferea frequently, you will see obvious speedup after you executed this command.


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