15 Greatest Open Source Terminal Applications Of 2012

Nice article on NixCraft:

Linux on the desktop is making great progress. However, the real beauty of Linux and Unix like operating system lies beneath the surface at the command prompt. nixCraft picks his best open source terminal applications of 2012.

Most of the following tools are packaged by all major Linux distributions and can be installed on *BSD or Apple OS X.

Link: http://www.cyberciti.biz/open-source/best-terminal-applications-for-linux-unix-macosx/

FlexGet

FlexGet is a multipurpose automation tool for content like torrents, nzbs, podcasts, comics, series, movies, etc. It can use different kinds of sources like RSS-feeds, html pages, csv files, search engines and there are even plugins for sites that do not provide any kind of useful feeds.

There are numerous plugins that allow utilizing FlexGet in interesting ways and more are being added continuously.

FlexGet is extremely useful in conjunction with applications which have watch directory support or provide interface for external utilities like FlexGet.

Webpage: http://flexget.com/

Mesurer la vitesse de chargement des pages des sites Web

Article très intéressant concernant les outils existants en ligne pour mesurer la vitesse de chargement des pages sur les sites Web.

Mesurer la vitesse de chargement des pages des sites Web: 'via Blog this'

10 essential MySQL tools for admins, toi aussi administre Mysql au top !

10 essential MySQL tools for admins, toi aussi administre Mysql au top !

Speedometer

Here is an interesting project that permits to display and measure the rate of data across a network connection or data being stored in a file. This tool is named Speedometer. He needs python 2.6 (or higher) to operate.
We're gonna see how to install it and use it. It's really easy !

For Debian based distros, simply launch:

apt-get install speedometer

For others distros (like us with CentOS), We first have to download and install Urwid:

cd /downloads
wget http://excess.org/urwid/urwid-1.0.1.tar.gz
tar -xvzf urwid-1.0.1.tar.gz
cd urwid-1.0.1
python setup.py install

Then we can install Speedometer like this:

cd /downloads
wget http://excess.org/speedometer/speedometer-2.8.tar.gz
tar -xvzf speedometer-2.8.tar.gz
cp speedometer.py /usr/local/bin/speedometer
chown root: /usr/local/bin/speedometer
chmod 755 /usr/local/bin/speedometer

That's all ! Now, let's see the help command of this little tool:

[root@localhost ~]$ speedometer
Usage: speedometer [options] tap [[-c] tap]...
Monitor network traffic or speed/progress of a file transfer.  At least one
tap must be entered.  -c starts a new column, otherwise taps are piled
vertically.

Taps:
  -f filename [size]          display download speed [with progress bar]
  -r network-interface        display bytes received on network-interface
  -t network-interface        display bytes transmitted on network-interface
  -c                          start a new column for following tap arguments

Options:
  -b                          use old blocky display instead of smoothed
                              display even when UTF-8 encoding is detected
                              (use this if you see strange characters)
  -i interval-in-seconds      eg. "5" or "0.25"   default: "1"
  -k (1|16|88|256)            set the number of colors this terminal
                              supports (default 16)
  -l                          use linear charts instead of logarithmic
                              you will VERY LIKELY want to set -m as well
  -m chart-maximum            set the maximum bytes/second displayed on
                              the chart (default 2^32)
  -n chart-minimum            set the minimum bytes/second displayed on
                              the chart (default 32)
  -p                          use original plain-text display (one tap only)
  -s                          use bits/s instead of bytes/s
  -x                          exit when files reach their expected size
  -z                          report zero size on files that don't exist
                              instead of waiting for them to be created

Note: -rx and -tx are accepted as aliases for -r and -t for compatibility
with earlier releases of speedometer.  -f may be also omitted for similar
reasons.

Python Version: 2.7
Urwid >= 0.9.9.1 detected: yes  UTF-8 encoding detected: yes

To display live RX traffic on eth0 network interface, simply launch (press 'q' to quit):

speedometer -rx eth0

To display live TX traffic on eth0 network interface, launch:

speedometer -tx eth0

Here's some usage examples given on Speedometer Web page:

How long it will take for my 38MB transfer to finish?

speedometer favorite_episode.rm $((38*1024*1024))

How quickly is another transfer going?

speedometer dl/big.avi

How fast is this LAN?

host-a$ cat /dev/zero | nc -l -p 12345

host-b$ nc host-a 12345 > /dev/null 
host-b$ speedometer -rx eth0

How fast is the upstream on this ADSL line? (start an upload first)

speedometer -tx ppp0

How fast can I write data to my filesystem? (with at least 1GB free)

dd bs=1000000 count=1000 if=/dev/zero of=big_nothing &
speedometer big_nothing

To finish, let me show you some screenshots that we can see on Speedometer Web page:

Link to Speedometer Web page: http://excess.org/speedometer/

10 essential MySQL tools for admins

I found this very interesting article about MySQL tools on networkworld yesterday, it describes the following tools:

mk-query-digest
mydumper
xtrabackup and xtrabackup-manager
tcprstat
mk-table-checksum
stalk and collect
mycheckpoint
shard-query
mk-archiver
oak-security-audit

Here is the link:

10 essential MySQL tools for admins