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sniff network traffic on a given interface and displays the IP addresses of the machines communicating with the current host (one IP per line)

perl insert character on the first line on your file

Retrieve the size of a file on a server
- Where $URL is the URL of the file. - Replace the $2 by $3 at the end to get a human-readable size. Credits to svanberg @ ArchLinux forums for original idea. Edit: Replaced command with better version by FRUiT. (removed unnecessary grep)

Execute a command before display the bash prompt
For example, if you are the type who type ls very often, then $ PROMPT_COMMAND=ls will ls after every command you issue.

Change your swappiness Ratio under linux
This command allow you to set the swappiness var at 50 (default is 60). The value interval must be set between 0 and 100. If swappiness is high=Swap usage is high, if swappiness is low=Ram usage is high.

Best kayak chiang
Just how to best outfit your fishing kayak can rely upon they type of fishing you're performing and the conditions you'll encounter. Little streams and seas need different concerns than offshore huge game fishing for instance. Whatever form of fishing you want to do, kayak fishing has some distinctive factors as the space is limited. It will be vital that you prioritize the most crucial things that you'll require to gain access to most regularly, and have them within simple reach. Some fishermen like to help keep it simple and hold the minimal level of gear: some like to hold something that they might probably need. There are several standard components that will raise the fish-ability of a kayak, or ensure it is more angler-friendly. Seats: Different than the usual exercise and your fishing equipment I'd claim that a high quality seat are at the the top of priority list. If you intend to spend your day fishing in comfort, you need to purchase a kayak with an excellent seat, or install one yourself. Pole Members: These are easy and useful areas to carry your rods securely while paddling, fishing or trolling. Some kayaks result from the factory with flush mounted rod slots or rod cases mounted on variable brackets. Some kayak retailers may modify your kayak by rigging pole cases for you really to match the wants of one's fishery: you may prefer to platform your own. There are numerous different models and types of rod holders from which to choose 1. Remove support rod holders are reduced in profile and give you a clear deck, so are not as likely becoming a range catcher (especially when travel fishing). There are plugs readily available for travel rods, and extensions for mainstream rods. Both could be removed when not in use. 2. Flexible pole members that are attached to the terrace are fully variable up and down, and provide 360-degree rotation. They come in types for spin/bait throwing or fly rods. Some may be removed when maybe not in use, which really is a great function if you are fly fishing. 3. There many other choices for mounting pole cases to seats, dairy crates and several other custom rigs. 4. Whatever the kind of pole holders you utilize, you ought to connect a pole lead therefore you may not lose them overboard. When you have to create a surf entry or exit, you must keep or secure your supports so they're maybe not lost in case of Best kayak chiang. Point Programs: These let you not just to stay in one spot where you would like to fish, but and also to fish a big area in an organized way. If you are sight fishing, blind throwing, or trolling you will need to cover the location as thoroughly that you can, and the correct anchor system will enable you to do so. You need to begin with an point basket as the base for the point system: a constant line working via a pulley on your own bow to a pulley on your stern with a snap land on each conclusion, and mounted on a band in the middle. You are able to fix your anchor line to or through the band, allowing you to modify your anchor point from any stage along the entire length of the kayak.

Continually monitor things
You can use this one-liner for a quick and dirty (more customizable) alternative to the watch command. The keys to making this work: everything exists in an infinite loop; the loop starts with a clear; the loop ends with a sleep. Enter whatever you'd like to keep an eye on in the middle.

list block devices
Shows all block devices in a tree with descruptions of what they are.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

extract plain text from MS Word docx files
Tested on MacOS X


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