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Created by magnum on March 03, 2013 13:27:54 Last update: March 03, 2013 13:27:54
Suppose you have a very large log file and it's hard to load the whole file into an editor. But you know the range of lines you are interested in. You can use sed to extract the range of lines to a smaller file:
$ sed -n 2737172,2743667p proxy.log > proxy-short....The switch -n means 'quiet', suppress automatic printing of pattern space . You can also use regex to mark the start and end lines instead of absolute line numbers.
Created by Dr. Xi on February 13, 2013 19:40:08 Last update: February 13, 2013 19:40:08
According to MSDN : On Windows 7 and on Windows Server 2008 R2 with the Wireless LAN Service installed, the operating system installs a virtual device if a Hosted Network capable wireless adapter is present on the machine. This virtual device normally shows up in the "Network Connections Folder" as "Wireless Network Connection 2" with a Device Name of "Microsoft Virtual WiFi Miniport adapter" if the computer has a single wireless network adapter. This virtual device is used exclusively for performing software access point (SoftAP) connections. The lifetime of this virtual device is tied to the physical wireless adapter. If the physical wireless adapter is disabled, this virtual device will be removed as well. On Windows 7, there's no UI to start or stop SoftAP....
Created by magnum on September 11, 2012 11:59:43 Last update: September 11, 2012 11:59:43
Exerpt from bash documentation. HISTORY EXPANSION The bash shell supports a history expansion feature that is similar to the history expansion in csh. This feature is enabled by default for interactive shells, and can be disabled using the +H option to the set builtin command. Non-interactive shells do not perform history expansion by default. History expansions introduce words from the history list into the input stream, making it easy to repeat commands, insert the arguments to a previous command into the current input line, or fix errors in previous commands quickly. History expansion is performed immediately after a complete line is read, before the shell breaks it into words. It takes place in two parts. The first is to determine which line from the history...
Created by Dr. Xi on May 25, 2012 15:47:34 Last update: May 25, 2012 15:49:33
Steps to configure SSL for Apache HTTPD server on Windows: In Apache2.2/conf/httpd.conf , load mod_ssl and include httpd-ssl.conf :
LoadModule ssl_module modules/mod_ssl.so ...In Apache2.2/conf/extra/httpd-ssl.conf , make sure the paths for the cert files point to the cert and key you want to use:
# Server Certificate: # Point SSLCertificat...Start up Apache. If it fails, use the command line to see what the error is. There won't be any log in error.log if there are errors in the conf files:
C:\Program Files (x86)\Apache Software Foundation\...I corrected the previous error by using the alternative line for SSLSessionCache :
# Inter-Process Session Cache: # Configure ...
Created by Dr. Xi on February 06, 2012 12:14:11 Last update: February 07, 2012 15:39:35
Oracle sqlplus command line tools does not support command line editing out-of-the-box. But on Linux there's a handy utility that enables command line editing with any command line tool: rlwrap - readline wrapper. Install rlwrap:
$ sudo apt-get install rlwrapCreate a keywords file .sql.dict (optional, but convenient):
false null true access add as asc begin by chec...It would be nice to add the tables names also. Create an alias for sqlplus (put it in .bashrc ):
alias sqlplus='rlwrap -f $HOME/.sql.dict sqlplus'
Created by Dr. Xi on January 09, 2012 09:13:38 Last update: January 09, 2012 09:14:18
Unlike CVS, svn does not have a tag command, you create a new tag with copy :
$ svn copy http://svn.example.com/repos/calc/trunk...The -r flag may be used to create a tag from an earlier revision:
-r [--revision] ARG : ARG (some commands al...
Created by woolf on December 11, 2011 13:38:58 Last update: December 11, 2011 13:38:58
Install usb.essentials . Package usbutils is optional.
# opkg update # opkg install kmod-usb2 # opk...Install usb printer support:
# opkg install kmod-usb-printerInstall p910nd print server:
# opkg install p910ndEdit /etc/config/p910nd :
config p910nd option device /dev...Configure firewall to allow port 9100 ( /etc/config/firewall ):
# Allow printer con...If clients are connecting from wan then the first line should be:
option src wanEnable automatic start of print server when router boots:
#/etc/init.d/p910nd enableRestart router:
Created by freyo on September 09, 2011 11:43:36 Last update: September 09, 2011 11:45:45
When you run automated Android tests with Eclipse or from the command line, you get text output, which isn't good for reporting purposes. If you run a large set of test cases with automated build, the text report isn't very helpful. Fortunately, Android CTS generates test reports in XML with accompanying XSL to make it look nice in a browser. To run your own tests with Android CTS: Download Android CTS Make a new directory MyRepository under android-cts , alongside the existing repository directory. Copy host_config.xml from repository to MyRepository Create directory plans under MyRepository , add a test plan ( MyTests.xml ):
<?xml version="1.0" encoding="UTF-8"?> <TestPla...Create directory testcases under MyRepository . Copy TestDeviceSetup.apk from repository/testcases to MyRepository/testcases Under MyRepository/testcases , create a test...
Created by freyo on September 07, 2011 16:46:14 Last update: September 07, 2011 19:23:00
The Android unit test framework is based on JUnit 3 , not JUnit 4. Test cases have to extend junit.framework.TestCase or a subclass (such as android.test.InstrumentationTestCase ). Tests are identified by public methods whose name starts with test , not methods annotated with @Test (as in JUnit 4). An Android test suite is packaged as an APK, just like the application being tested. To create a test package, first you need to identify the application package it is testing. Google suggests to put the test package source in a directory named tests/ alongside the src/ directory of the main application. At runtime, Android instrumentation loads both the test package and the application under test into the same process. Therefore, the tests can invoke methods on...
Created by magnum on June 23, 2011 20:15:49 Last update: June 23, 2011 20:29:45
Linux services startup order in general: kernel runs /sbin/init /sbin/init reads /etc/inittab and runs script defined by this line:
si::sysinit:/etc/init.d/rcSswitches to runlevel defined by
id:3:initdefault:which causes /etc/init.d/rc to be called with the current run level. /etc/init.d/rc calls the scripts under the /etc/rc <current_run_level> .d directory (symbolic links to actual scripts under /etc/init.d/ ) in this order: The KILL scripts first (scripts with name starting with K, i.e., rc?.d/Knn name ): "script_name stop" then, the START scripts (scripts with name starting with S, i.e., rc?.d/Snn name ): "script_name start" Within each group (KILL or START), run scripts from lower priority number (i.e., the nn in the symlink name) to higher priority number. The Upstart init daemon does not use /etc/inittab . Instead, it...