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How to use the Linux sed command to edit files in place (and make a backup copy)

... successfully -- or really screw things up -- all in one command. :) Yesterday I ran into a situation where I had to edit over ... editing commands I wanted to run -- a series of simple find/replace commands -- but my bigger problem was how to edit that many files ...

Blog - alvin - Apr 14 2015 - 10:09pm - 0 comments

A collection of Unix/Linux find command examples

...   Abridged examples Basic find command examples Find directories with the Unix find command ...

Blog - alvin - Apr 9 2015 - 3:23pm - 23 comments

git push after git tag problem (everything up-to-date)

... I pushed it like this: git push origin v0.1 The command the output from git looks like this: $ git push origin v0.1 ... also use this command: git push --tags You can find more information about tagging here on the git-scm.com website . ...

Blog - alvin - Feb 21 2015 - 9:46pm - 0 comments

How to start the Android command line shell

Android FAQ: How do I start the Android command line tool (so I can interact with my Android emulator or device)? ... emulator or device. Android adb commands You can find a complete list of adb commands here on the Android developer website . ...

Blog - alvin - Feb 3 2015 - 12:11am - 0 comments

Teleport - The Unix/Linux cd command, improved

... table of contents   The Teleport command Teleport command help For basic use, tp is just like ... is fantastic. Just what I was looking for. However I find that sometimes I need to list the commands and then jump to a number. This ...

Blog - alvin - Jan 22 2015 - 10:11pm - 25 comments

A Mac iTunes backup script (How I backup my iTunes music using find and tar)

... backup my iTunes music on my Mac OS X systems: find . -name '*.mp3' -type f -mtime -365 -print0 | xargs -0 tar rvf ... the Music folder on my OS X system, then run that command, and it creates the tar file shown at the end of the command. This ...

Text - alvin - Jan 19 2015 - 4:50pm - 0 comments

A Java JFileChooser example, with ActionEvent, ActionListener, Insets, actionPerformed, showOpenDialog

... applications quite a bit, and I want it to be easier to find on my website.) /** * Copyright (c) 2006 Sun Microsystems, Inc. All ... + "." + newline); } else { log.append("Open command cancelled by user." + newline); } ... } else { System.err.println("Couldn't find file: " + path); return null; } } /** * Create the GUI ...

Source_Code - alvin - Nov 24 2014 - 11:59pm - 0 comments

Converting PDF content to plain text with Scala (or Java)

... its limitations. In my Github project you’ll find a shell script to compile the application into a native Mac OS X ... include Jar files in a Scala shell script, (b) how to read command line arguments in a Scala shell script, or (c) how to precompile a ...

Blog - alvin - Nov 17 2014 - 3:26pm - 0 comments

Generating a list of URLs from Apache access log files, sorted by hit count, using Apache Spark (and Scala)

... the REPL. I start the Spark interpreter (REPL) with this command at my *nix command line: $ MASTER=local[4] ... 'bytes' field I used this next expression to find the lines that my Apache access log file parser project wasn’t ... servers. But alas, that will have to wait until I can find some more free time. Until then, if you were looking for an example of how ...

Blog - alvin - Nov 7 2014 - 5:07pm - 0 comments

Analyzing Apache access logs with Spark and Scala

... you build Spark on your system with SBT by using this command in your Spark installation directory: $ sbt/sbt assembly ... little methods to work with the data. For instance, to find out how many 404 records are in the access log, I first create this ...

Blog - alvin - Nov 7 2014 - 5:25pm - 0 comments