Commands by ncaio

Commands by ncaio (14)

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Load average + API google chart

limite = threshold Show Sample Output
This is sample output - yours may be different.
```
http://chart.apis.google.com/chart?chxr=0,0,5&chxt=y&chs=700x240&cht=gm&chds=0,5&chd=t:0.52&chl=0.52&chtt=zappa+load+average
```
7

limite="5";load5=$(awk '{print $1}' /proc/loadavg);echo "http://chart.apis.google.com/chart?chxr=0,0,5&chxt=y&chs=700x240&cht=gm&chds=0,"$limite"&chd=t:"$load5"&chl="$load5"&chtt=$(hostname)+load+average"

ncaio · 2011-04-02 17:55:24 8
Mutt - Change mail sender.
This is sample output - yours may be different.
2

export EMAIL=caiogore@domain.com && mutt -s "chave webmail" destination@domain.com < /dev/null

ncaio · 2011-03-03 18:45:05 15
Check default block size on ext2/ext3 filesystems

the result of the command helped a check the Maximum file size and Maximum file system size. EXT3 Exemple: Block size; MAX File size; Maximum file system size 1 KiB; 16 GiB ; 2 TiB 2 KiB ; 256 GiB ; 8 TiB 4 KiB ; 2 TiB ; 16 TiB 8 KiB[limits 1]; 2 TiB; 32 TiB Show Sample Output
This is sample output - yours may be different.
```
root@zappa:/tmp# tune2fs -l /dev/sda6 | grep -w ^"Block size:"
Block size:               4096
```
-1

tune2fs -l /dev/XXXX | grep -w ^"Block size:"

ncaio · 2011-02-10 16:39:14 3
left-right mouse buttons (left-handed)
This is sample output - yours may be different.
3

xmodmap -e "pointer = 3 2 1"

ncaio · 2011-02-09 16:20:19 3
create shortcut keys in bash
This is sample output - yours may be different.
8

bind -x '"\C-p"':pwd

ncaio · 2011-02-02 18:14:58 6
Remote mysql dump all databases with ssh
This is sample output - yours may be different.
1

mysqldump -u user -p --all-databases | ssh user@host dd of=/opt/all-databases.dump

ncaio · 2011-01-12 18:27:46 3
remote diff with side-by-side ordering.

more information: man sdiff
This is sample output - yours may be different.
4

ssh $HOST -l$USER cat /REMOTE/FILE | sdiff /LOCAL/FILE -

ncaio · 2009-06-05 18:44:00 8
Convert the output of one or more (log, source code ...) files into html,

Requires the "enscript" package. frank@zappa:~# sudo apt-get install enscript Or http://www.codento.com/people/mtr/genscript/ "use your head" Show Sample Output
This is sample output - yours may be different.
```
output left in /var/www/output.html
```
4

enscript -E --color -t "title" -w html --toc -p /PATH/to/output.html /var/log/*log

ncaio · 2009-06-04 13:36:02 5
resolve hostname to IP our vice versa with less output

inverted version: resolveip -s 216.34.181.xxx freshmeat.net Show Sample Output
This is sample output - yours may be different.
```
root@zappa:~/Music# resolveip -s www.freshmeat.net
216.34.181.xxx
```
1

resolveip -s www.freshmeat.net

ncaio · 2009-06-02 14:25:53 7
Check wireless link quality with dialog box

The variable WIRELESSINTERFACE indicates your wireless interface
This is sample output - yours may be different.
1

while [ i != 0 ]; do sleep 1 | dialog --clear --gauge "Quality: " 0 0 $(cat /proc/net/wireless | grep $WIRELESSINTERFACE | awk '{print $3}' | tr -d "."); done

ncaio · 2009-05-31 16:09:23 12
Get pages number of the pdf file
This is sample output - yours may be different.
7

pdfinfo Virtualization_A_Beginner_Guide.pdf | awk /Pages/

ncaio · 2009-05-31 15:45:38 7
Alternative way to get the root directory size in megabytes
This is sample output - yours may be different.
-1

expr $(fdisk -s ` grep ' / ' /etc/mtab |cut -d " " -f1`) / 1024

ncaio · 2009-05-21 17:25:38 6
get a process list by listen port
This is sample output - yours may be different.
2

netstat -ntlp | grep -w 80 | awk '{print $7}' | cut -d/ -f1

ncaio · 2009-05-20 20:29:56 9
find string into one pdf file
This is sample output - yours may be different.
2

find / -iname '*.pdf' -print -exec pdftotext '{}' - \; | grep --color -i "unix"

ncaio · 2009-05-20 20:23:34 4

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Install pip with Proxy

Installs pip packages defining a proxy

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Synchronize both your system clock and hardware clock and calculate/adjust time drift

Do not run this command if you already have ntpd running! This needs to run as root, for example with sudo: $ sudo ntpdate pool.ntp.org && sudo hwclock --systohc && sudo hwclock --adjust This command will fetch accurate time from NTP servers and synchronize your system clock, then it will use the system clock to synchronize your hardware clock, and will calculate the time drift.

Polkit: Force KDE apps to always recognize your display

KDE apps expect certain variables to be set, and unfortunately pkexec doesn’t set them by default. So, by setting this alias, it becomes possible to run, e.g. “pkexec kate” or “pkexec dolphin” and it’ll actually run.

Get list of servers with a specific port open

Change the -p argument for the port number. See "man nmap" for different ways to specify address ranges.

Burn CD/DVD from an iso, eject disc when finished.

cdrecord -scanbus will tell you the (x,y,z) value of your cdr (for example, mine is 3,0,0)

Optimize PDF documents

Calculate pi to an arbitrary number of decimal places

Change the scale to adjust number of decimal places prefix the command with "time" to benchmark the computer (compare how long it takes to calculate 10000 digits of pi on various computers).

for all flv files in a dir, grab the first frame and make a jpg.

This is handy for making screenshots of all your videos for referring to in your flv player.

Record your desktop

That will capture 200 seconds of video at fullscreen 1680x1050 resolution, but scaled down 25 percent, with 15 frames per second. http://fusioncast.blogspot.com/2007/09/infobyte-how-i-record-my-desktop.html

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