ssh/scp are convenient and handy tools on Linux. Is is possible to further improve its speed/performance? Please check this post for how to improve ssh/scp performance: https://www.systutorials.com/5450/improving-sshscp-performance-by-choosing-ciphers/
How to change the mode for simplified Chinese or Traditional Chinese mode in ibus-libpinyin?
Posted onHow to change the mode for simplified Chinese or Traditional Chinese mode in ibus-libpinyin? What is the shortcut like “Ctrl+.” for switching full width or half width punctuation. Use shortcut “Ctrl + Shift + F”. In ibus-pinyin version 1.3.7, this shortcut is added: 2010-05-28 ibus-pinyin 1.3.7 stable release Add Ctrl + Shift + F to
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Good introductions to Hadoop 2.0 (YARN)?
Posted onWhich ones are recommended introductions to Hadoop 2.0 (YARN)? Pointers to webpages are good. Those are good ones that I find: The SoCC13 paper “Apache Hadoop YARN: Yet Another Resource Negotiator” by Vinod Kumar Vavilapalli et al.: http://www.socc2013.org/home/program/a5-vavilapalli.pdf The introduction from Hortonworks by Arun Murthy:http://hortonworks.com/blog/apache-hadoop-yarn-concepts-and-applications/ The “Official” one from Apache Hadoop website (very brief):https://hadoop.apache.org/docs/r2.2.0/hadoop-yarn/hadoop-yarn-site/YARN.html
Hadoop 2 (YARN) default configuration values
Posted onWhere to check the default Hadoop 2 (YARN) configuration values for: HDFS: hdfs-site.xml YARN: yarn-site.xml MapReduce: mapred-site.xml Default Hadoop 2 (YARN) configuration values for Hadoop 2.2.0 from Apache Hadoop website: HDFS: http://hadoop.apache.org/docs/r2.2.0/hadoop-project-dist/hadoop-hdfs/hdfs-default.xml YARN: https://hadoop.apache.org/docs/r2.2.0/hadoop-yarn/hadoop-yarn-common/yarn-default.xml MapReduce: https://hadoop.apache.org/docs/r2.2.0/hadoop-mapreduce-client/hadoop-mapreduce-client-core/mapred-default.xml
How to convert a latex document with figures to a HTML file?
Posted onHow to convert a latex document with figures to a HTML file? htlatex (On Fedora, it is in the package texlive-tex4ht) can generate the html from a latex doc better than latex2html. From my experience, it can produce a better html file.
How to rearrange Alt, Ctrl and Win keys on Linux: Win as Alt and Ctrl/Alt as Ctrl
Posted onHow to rearrange Alt, Ctrl and Win keys on Linux: Win as Alt and Ctrl/Alt as Ctrl? On Linux, the Win key is seldom used. Mapping the Alt keys which are close to my thumb is damn convenient for Emacs users. Hence, the keyboard at the bottom line would look like: ———————————————————— |Ctrl|Alt|Ctrl| Space Bar
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Add header footer in directory listing in Apache (httpd)
Posted onHow to add header footer in directory listing in Apache (httpd)? In the web directory’s .htaccess file: Options +Indexes IndexOptions FancyIndexing VersionSort NameWidth=* HTMLTable Charset=UTF-8 HeaderName /header.html ReadmeName /footer.html IndexIgnore header.html footer.html .htaccess header.html and footer.html are under the website root directory (not the Linux root).
How to map Win key to Ctrl on Linux?
Posted onHow to map the Win key to another Ctrl on Linux? You can set it in gnome-tweak-tool in Gnome 3 by setting the “Alt/Win key behavior”:
How to split a text file by lines on Linux?
Posted onHow to split a text file by lines on Linux? For example, to split a file content.txt into many files and each split contains 1024 lines. You can use the split command on Linux: split -l 1024 content.txt splitted-content.txt- It will generate splitted-content.txt-{aa,ab,….}
Classpath for compiling MapReduce jobs on Hadoop 2.2.0
Posted onHow to get the correct classpath for compiling MapReduce jobs on Hadoop 2.2.0 (YARN)? The yarn command from Hadoop 2 can find it out for you: yarn classpath You may add the full path to yarn which is under bin directory of the Hadoop distribution pachage, if it is not in your $PATH.
How to reset the keyboard set by xmodmap on Linux?
Posted onHow to reset the keyboard set by xmodmap on Linux? You can reset your keyboard settings by: setxkbmap or setxkbmap -option depending on the way the keyboard was set by xmodmap.
How to detect memory leaks of C programs in Linux?
Posted onHow to detect memory leaks of C programs in Linux? I also have access to the source code of the program. There are many posts related to this: Easy and quick tools on Linux (while not very accurate): http://blog.thewebsitepeople.org/2011/03/linux-memory-leak-detection/ Valgrind: manual and a tutorial. gperftools has the Google Heap Profiler which can checks for memory
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How to swap alt and ctrl on Linux for Emacs?
Posted onHow to swap alt and ctrl on Linux for Emacs? It will be more easier to press the ctrl keys which is a very important key for Emacs. You can make of xmodmap. Save this as a file modmap: clear control clear mod1 keycode 64 = Control_L NoSymbol Control_L keycode 37 = Alt_L Meta_L Alt_L
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How to turn the space bar to another ctrl key?
Posted onHow to turn the space bar to another ctrl key? It will be dam useful especially for Emacs users and also useful for normal usage like for tab changing in Chrome or Gnome terminal. You may try 2 tools in userspace: Space2Ctrl: https://github.com/r0adrunner/Space2Ctrl xcape: https://github.com/alols/xcape Note that the limitation of these solutions: the space will
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How to change default OS for windows dual boot manager in Windows 7?
Posted onHow to change default OS for windows dual boot manager in Windows 7? The c:/boot/ in older Windows does not exist anymore. Open the Control Panel and click on the System icon. In the left pane, click on the Advanced system settings link. Under the Advanced tab, click on the Settings button under Startup and
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How to remap the Caps Lock key to Control for Emacs
Posted onHow to remap the Caps Lock key to Control for Emacs? My left little finger is just so tired… You can either change it in gnome-tweak-tool on Gnome 3: Or: You can make use of 2 tools: xev to find out the key code for Caps Lock and xmodmap to modify key maps. First, run
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How to make Alt-Tab switch among windows instead of applications in Gnome 3?
Posted onThe default Alt-Tab in Gnome 3 switches among applications and windows are grouped by application. How to make Alt-Tab switch among windows instead of applications in Gnome 3? Check the Alternate Tab Gnome 3 extension and you will love it. Substitute Alt-Tab with a window based switcher that does not group by application. This extension
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How to @import a css file only for wide screens
Posted onHow to @import a css file, such as for an open fonts hosted by Google, only for wide screens, such as with px of larger than 846? A piece of css that you can use: @import url(http://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,700italic,300,400,700,900) (min-width:846px) This import Open Sans fonts for only screens of at least 846 px.
gthumb hangs at startup on Fedora
Posted ongthumb hangs at startup on Fedora when I plugged my iPhone on the USB. How to solve this? You need to unmount the iPhone: Open nautilus. Press F9 (may need twice) to open the side panel if it is not opened yet. Find your iPhone on the side panel and unmount it by click the
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How to dd on Windows?
Posted ondd is a handy tool on Linux. But is it possible to run it on Windows? I find the dd in cygwin works very well for me. It provides as almost (if not the same) functions as the dd on Linux. The disks are specified in /dev/ as on Linux. This solution means: you need
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