Commands tagged host (15)

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One liner to kill a process when knowing only the port where the process is running
-k (kill option ) . To kill all processes accessing this port

Two command output
Summarize established connections after netstat output. Using tee and /dev/stderr you can send one command output to terminal before executing wc so you can summarize at the bottom of the output.

Repeat a portrait eight times so it can be cut out from a 6"x4" photo and used for visa or passport photos
Yes, You could do it in the GIMP or even use Inkscape to auto-align the clones, but the command line is so much easier. NOTE: The +clone and -clone options are just to shorten the command line instead of typing the same filename eight times. It might also speed up the montage by only processing the image once, but I'm not sure. "+clone" duplicates the previous image, the following two "-clone"s duplicate the first two and then the first four images. NOTE2: The -frame option is just so that I have some lines to cut along. BUG: I haven't bothered to calculate the exact geometry (width and height) of each image since that was not critical for the visa photos I need. If it matters for you, it should be easy enough to set using the -geometry flag near the end of the command. For example, if you have your DPI set to 600, you could use "-geometry 800x1200!" to make each subimage 1⅓ x 2 inches. You may want to use ImageMagick's "-density 600" option to put a flag in the JPEG file cuing the printer that it is a 600 DPI image. BUG2: ImageMagick does not autorotate images based on the EXIF information. Since the portrait photo was taken with the camera sideways, I made the JPEG rotate using jhead like so: jhead -autorot 2007-08-25-3685.jpg

Pronounce an English word using Merriam-Webster.com
The original was a little bit too complicated for me. This one does not use any variables.

List empty any directories

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

files and directories in the last 1 hour
added alias in ~/.bashrc alias lf='find ./* -ctime -1 | xargs ls -ltr --color'

generate random mac address

cpu process limitation for specific processname like java,kibana
apt-get install cpulimit

Ping xxx.xxx.xxx.xxx ip 100000 times with size 1024bytes


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