Month: June 2014

Installing Chrome Extensions Without Signing in With a Google Account

Posted on by rchapin

Google requires that you login with a Google account before you can install any Chrome extensions.

The following is how to install an extension without logging in (under Windows.  The same should work under Linux and Mac):

  1. Find the ID for the extension.  When you browse the extension in the store you will see a URL similar to the following:  https://chrome.google.com/webstore/detail/cookies/iphcomljdfghbkdcfndaijbokpgddeno?hl=en.   The hash string after the ‘cookies’ string (the name of the extension) up to the ? is the
→ Continue reading “Installing Chrome Extensions Without Signing in With a Google Account”

Removing The Last N Character From a String in Bash Script with sed

Posted on by rchapin

Here is a quick one-liner for trimming a specific number of characters from the end of a string under bash:

# Remove the last 5 characters
$ echo "somestringwith12345" | sed "s/.....$//g"
$ somestringwith

# Remove the last 3 characters
$ echo "somestringwith12345" | sed "s/...$//g"
$ somestringwith12
→ Continue reading “Removing The Last N Character From a String in Bash Script with sed”

Running Multiple Instances of Notepad++ Under Windows 7

Posted on by rchapin

If you want to run multiple versions of Notepad++ under Windows 7 create a .bat file with the following:

"C:\Program Files (x86)\Notepad++\notepad++.exe" -multiInst %1

And simply run the bat file via a cmd prompt/ → Continue reading “Running Multiple Instances of Notepad++ Under Windows 7”

Splitting a String in Bash on the FIRST Occurrence of a Character

Posted on by rchapin

About a year ago I posted an article about how to split into an array of values based on a given delimiter in bash.

The following is how to take that same string and split it on the first occurrence of the same user defined delimiter.

Both use the ‘read’ command, but in a slightly different way.

Instead of passing read the -a [aname] parameter which tells it that “The words are assigned to sequential indices of the array → Continue reading “Splitting a String in Bash on the FIRST Occurrence of a Character”

BASH Script With Default Arguments Defined in The Script

Posted on by rchapin

Often times you will want to write a BASH script where you don’t want to have to keep track of all of the positional command line arguments and/or you might want to configure it with a set of environmental variables while having a default value for each in the script.

Following is the syntax for declaring them in the shell script, and then an example on how to invoke it.

#!/bin/bash

: ${ARG1:="somedefault_arg1"}
: ${ARG2:="10"}

echo "ARG1 = $ARG1"
echo
→ Continue reading “BASH Script With Default Arguments Defined in The Script”
© 2005 Ryan Chapin