Commands by nerd65536

Commands by nerd65536 (4)

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Duplicate several drives concurrently

If you have some drive imaging to do, you can boot into any liveCD and use a commodity machine. The drives will be written in parallel. To improve efficiency, specify a larger block size in dd: dd if=/dev/sda bs=64k | tee >(dd of=/dev/sdb bs=64k) | dd of=/dev/sdc bs=64k To image more drives , insert them as additional arguments to tee: dd if=/dev/sda | tee >(dd of=/dev/sdb) >(dd of=/dev/sdc) >(dd of=/dev/sdd) | dd of=/dev/sde
This is sample output - yours may be different.
23

dd if=/dev/sda | tee >(dd of=/dev/sdb) | dd of=/dev/sdc

nerd65536 · 2009-12-11 17:34:38 8
Mount a .iso file in UNIX/Linux

"-o loop" lets you use a file as a block device
This is sample output - yours may be different.
46

mount /path/to/file.iso /mnt/cdrom -oloop

nerd65536 · 2009-02-05 17:28:06 25
Make bash look like DOS

Credit goes here: http://blag.xkcd.com/2008/12/03/some-lists/ Show Sample Output
This is sample output - yours may be different.
```
user@hostname:~$

becomes:

C:\home\user>
```
0

export PS1='C:${PWD//\//\\\}>'

nerd65536 · 2009-02-05 17:23:53 25
Resets a terminal that has been messed up by binary input
This is sample output - yours may be different.
1

reset

nerd65536 · 2009-02-05 17:18:48 19

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Processor / memory bandwidthd? in GB/s

Read 32GB zero's and throw them away. How fast is your system?

firefox: how many eat?

Lists installed kernels

no need for rpm, no need for piping to another command. also no real fu but lacking in unnecessary complexity and distro specific commands.

Use nroff to view the man pages

Using nroff , it is possible to view the otherwise garbled man page with col command.

Suspend, background, and foreground a process

1. Start a process, such as 'top' command 2. # suspend process {ctrl-Z} 3. # background process bg 4. # list all backgrounded jobs jobs 5. # bring it back to foreground fg

Rename file to same name plus datestamp of last modification.

FILENAME=nohup.out mv -iv $FILENAME{,.$(stat -c %Y $FILENAME)} does it help ?

Re-emerge all ebuilds with missing files (Gentoo Linux)

Revised approach to and3k's version, using pipes and read rather than command substitution. This does not require fiddling with IFS when paths have whitespace, and does not risk hitting command-line size limits. It's less verbose on the missing files, but it stops iterating at the first file that's missing, so it should be definitely faster. I expanded all the qlist options to be more self-describing.

Notepad in a browser (type this in the URL bar)

It doesn't save your notes, but it's great for jotting something down quickly.

Set audible alarm when an IP address comes online

I'd rather this one on Gnome, as I'm used to be listening some music while working. I've even created a bash function which receives ADDRESS as parameter.

find out which directories in /home have the most files currently open

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