ZGREP
NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep is used to invoke the grep on compressâed or gzipâed files. All options specified are passed directly to grep. If no file is
specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if neces-
sary and fed to grep.
If zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep
uses it as the grep program to be invoked. For example:
for sh: GREP=fgrep zgrep string files
for csh: (setenv GREP fgrep; zgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO
grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)
-----------------
Example:
zgrep "ERROR" *.gz
Performance Tuning for firefox
Firefox has Memory issues. If the browser is kept open for a while, even if I close all tabs except one Firefox doesn't clear the memory that it occupied. In my case I kept the browser open for more than a day; 2 windows with 4 tabs each. From the second day onwards it takes up more than 512Mb of memory and even typing becomes slow.
I found this article that explains how to fix the memory leak issue in firefox. Its basically tuning for better performance.
Hope this helps you.
Auto Generate JUnit Test Cases
If you are starting fresh with using JUnit and writing Unit Testcases, then this tool will be very handy.
We currently already use JUnit, however we didnt write testcases for the POJOs. Now the code had grown so much we now have lot of POJOs and our coverage looks very dull.
The advantage of this tool is it not only generates skeleton test cases, for POJOs with just setter and getters, it actually generates Testcases also.
JUnit Code generation tool: http://www.junitdoclet.org/
Eclipse plugin using this doclet: http://sourceforge.net/projects/e-junitdoclet/
Example:
Very cool tool and I am gonna use this a lot. Thanks to JUnitDoclet Team.
We currently already use JUnit, however we didnt write testcases for the POJOs. Now the code had grown so much we now have lot of POJOs and our coverage looks very dull.
The advantage of this tool is it not only generates skeleton test cases, for POJOs with just setter and getters, it actually generates Testcases also.
JUnit Code generation tool: http://www.junitdoclet.org/
Eclipse plugin using this doclet: http://sourceforge.net/projects/e-junitdoclet/
Example:
JUnitDoclet.1.0.2>junitdoclet.bat -d out -sourcepath C:\mymodule\src -package com.my.packageVery cool tool and I am gonna use this a lot. Thanks to JUnitDoclet Team.
JS: Calculate Browser window Height
Calculating browser window size using Javascript is not straight forward. There are many properties to check for and each property behaves differently in each version of Browser.
Following are various properties available to get Browser window width and height:
- window.innerHeight/window.innerWidth
- window.outerheight/window.outerwidth
- document.body.clientHeight/document.body.clientWidth
- document.documentElement.clientHeight/document.documentElement.clientWidth
Now if you want to calculate the window width and height you'll have to write javascript that checks the browser type and gets the width and height.
Fortunately for us Mark has already written a script that works in any browser. Here it is... http://www.howtocreate.co.uk/tutorials/javascript/browserwindow
Thank you Mark!
Eclipse Shortcuts
Eclipse shortcuts for everyday development.
Ctrl+Shift+R
Open any Resource in the workspace.
Ctrl+Shift+T
Open a Java Class. Also supports abbreviations, example: BIS gives BufferedInputStream, NPE gives NullPointerException
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