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Category Archives: tip
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Example Bash Script which Monitors if a Program has Died, and Restarts it
Background
Here’s a quick script that might prove useful if you need to watch if a program is running and restart it if it stops for whatever reason. It is by no means fault tolerant, but could be adapted to be more so if needed.
Solution
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#!/bin/bash
# NAME: check_dropbox.bash
# DESC: watch if dropbox is running
check_process() {
[...] Continue reading
Posted in bash, monitoring, script, Syndicated, tip, tutorials
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[one-liner]: Commenting out a block in an XML file using sed
Background
This issue came up recently where I needed to programmatically comment out a section of tags in an XML file.
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<login-module code="org.dcm4chex.archive.security.TrustLoginModule"
flag = "required" >
[...] Continue reading
Posted in one-liner, sed, Syndicated, tip, tips & tricks, XML
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[one-liner]: Calculating & Sorting Disk Usage Using du
Background
Occasionally I want to calculate how much disk space is being consumed with a directory. Here are a couple of simple yet powerful one-liners that achieve this.
Solutions
method #1
This first choice is inefficient in the sense that it basically runs du twice. Once to generate a sorted list of the directories & files by size and [...] Continue reading
Posted in bash, one-liner, shell, Syndicated, tip, tips & tricks
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[one-liner]: Adding the Oracle/Sun Java Plugin to Firefox on Ubuntu 11.04
Background
If you’d like to add the Oracle/Sun Java plugin to Firefox under Ubuntu here’s a quick tip on how to do it.
NOTE: If you need help installing Java see my previous post, Howto Install/Setup Oracle/Sun Java 1.6.X on Ubuntu 10.10.
Solution
Simply run the following command, which creates a link to the Java plugin, thus “installing it” [...] Continue reading
Posted in firefox, java, one-liner, Syndicated, tip, tips & tricks, Ubuntu
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[one-liner]: Fixing Favicons on Google Chrome’s Bookmark Toolbar
Background
I maintain a couple of blogs and on one of them I changed the favicon.ico file associated with it. I also keep a link to the blogs in Google Chrome’s bookmark toolbar. However after updating the favicon.ico file on the blog, I noticed that Chrome wasn’t getting this updated version of the .ico file. Here’s [...] Continue reading
Posted in chrome, favicon, Google, one-liner, Syndicated, tip, tips & tricks
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[one-liner]: Getting Thunderbird 5 to Play Nice on CentOS 5
Background
I’ve been using the Thunderbird 2.x & 3.x series for a while on CentOS 5 without issue for the last couple of years. Recently I received a dialog from Thunderbird saying that version 5 was available so I figured what the heck move up. The upgrade seemed to go smoothly but then I noticed that [...] Continue reading
Posted in centos, one-liner, Syndicated, Thunderbird, tip, tips & tricks
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[one-liner]: Command-line Fu … Useful Linux Commands (repost)
Background
Came across these commands on another blog and wanted to create my own personal copy of these useful command-line examples.
Commands
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% sshfs name@server:/path/to/folder /path/to/mount/point
# Mount folder/filesystem through SSH
# Install SSHFS from http://fuse.sourceforge.net/sshfs.html
# Will allow you to mount a folder security over a network.
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% !!:gs/foo/bar
# Runs previous command replacing foo by bar every time that foo appears
# [...] Continue reading
Posted in linux, one-liner, shell, Syndicated, sysadmin, tip, tips & tricks
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Improving the WordPress Plugin Statpress Reloaded’s Performance
Since setting up this blog some 2+ years ago I’ve been using the WordPress plugin, Statpress Reloaded, to keep tabs on how much traffic it receives. It’s purely just for vanity sake. Now for anyone that’s used Statpress Reloaded, you’ll know that it’s a nice plugin for what it shows, mainly real-time stats, but it’s [...] Continue reading
Posted in monitoring, performance, Syndicated, tip, tips & tricks, wordpress, wordpress plugin
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Getting the BlogTNG plugin working in Dokuwiki under CentOS 5
Background
BlogTNG is a blogging plugin that provides a pretty basic though usable blog within the wiki software, Dokuwiki. I wanted to try this out on one of the sites I support but when I installed the BlogTNG plugin my Dokuwiki install just started displaying blank pages. The only hint of a problem was in the [...] Continue reading
Posted in centos, dokuwiki, package management, PHP, plugins, redhat, rpm, Syndicated, tip, tips & tricks
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[one-liner]: Can’t Connect to VMware Server 2.x from Internet Explorer 8
Background
Recently I ran into a problem where I wasn’t able to connect to a VMware Server from IE 8. I was getting an error message that didn’t give me much to go on. Basically IE displayed a blank page and there was a little yellow exclamation point in the lower left corner of IE.
<p [...] Continue reading
Posted in one-liner, Syndicated, sysadmin, tip, tips & tricks, vmware
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