Graphical vi/vim functional keys sheet

vi is a free software screen-oriented text editor written by Bill Joy in 1976 for an early BSD release.Vim, which stands for Vi IMproved, is an open source, multiplatform text editor extended from vi. It was first released by Bram Moolenaar in 1991. Since then, numerous features have been added to Vim, many of which are helpful in editing program source code. Vim and vi are very popular editors for […]

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Google is 9 years old now

PageRank 10 page google.com, turned 9 years old at 27th of September 2007, according to the special logo put up for the occasion yesterday. wikipedia.org: Google was co-founded by Larry Page and Sergey Brin while they were students at Stanford University and the company was first incorporated as a privately held company on September 7, 1998. Through a series of new product developments, acquisitions and partnerships, the company has expanded […]

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Dump ipcad output into sqlite3

ipcad is IP accounting daemon with Cisco-like ip accounting export. It runs in background, listens traffic on the specified interfaces, and records the traffic for later retrieval and analysis. Here is a piece of shell code that allows to export ipcad output into sqlite3 database format: echo “create table traffic (src, dst, pkt, bt);” | sqlite3 /tmp/throttle.db rsh 127.0.0.1 show ip accounting | grep “^ ” | grep -vi source […]

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Apache web server benchmark tool ab

ab is a tool for benchmarking your Apache HTTP server. It is designed to give an impression of how Apache installation performs. This especially shows how many requests per second certain Apache installation is capable to serve. Manual of ab is rather extensive, so here is just useful example of it’s usage: ab -n 100 ubuntu.com/ will send 100 requests to Apache server of Ubuntu’s web site. Here it’s output: […]

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Testing system validity

IBM: Systems Administration Toolkit: Testing system validity The typical UNIX® administrator has a key range of utilities, tricks, and systems he or she uses regularly to aid in the process of administration. There are key utilities, command-line chains, and scripts that are used to simplify different processes. Some of these tools come with the operating system, but a majority of the tricks come through years of experience and a desire […]

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