Skip to main content

playing with VI editor

This might be helpful to you:

How to remove ^M characters (they are end of line DOS's characters) from a file in vi:

type this
:%s/^V^M//g

where ^V is control-v and ^M is control-m.

:%s
is the basic search and replace command in vi and the command you typed will look like this
:%s/^M//g. It will replace what is between the first and second / with what is between the 2nd and 3rd /. Between the first and second slash, we have ^M and between the second and third we have an empty string since we are replacing with an empty string.

g:
means to replace all occurences.

Comments

Popular posts from this blog

HTML5 Dev Conf and IOTAConf

Next week is going to be really fun. I have the opportunity to attend the HTML5DevConf and IOTAConf again and also go to a new conference hosted by Twitter: Twitter Flight Here's the schedule of the talks I intend to go for the HTML5DevConf: http://www.iotaconf.com/schedule.html http://html5devconf.com/schedule.html Monday: 7:30-9:00 Registration 9:00-9:50 1. The Web of things - Leveraging the web for the internet of things, E-135 2. Design patterns for an internet of things, N-123 3. Dump SASS and Less CSS for JS powered CSS, Michael Mikowski, Qualaroo, E-131 10-10:40 Break 10-40-11:30 1. How to create native-like experience in the mobile web, E-131 2. Bringing Web content to the big screen with google cast, E-130 11:40-12:30 1. Virtual Reality & the future of the web, E-135 2. The new meteor platform, web and native mobile from a single reactive javascript codebase, E-133 1:30-2:20 1. Engaging Apps: Service Workers, Push an

Run python inside python and capture output

This is taken from http://techkr.blogspot.com/2007/02/python-how-to-get-output-from-ossystem.html: How to execute python inside python and capture output: A quick solution using popen : import os result=os.popen('command').read() print result where command is your command (expl. on windows: dir,ipconfig,...) If you expect more than a line and want each word in a list: import os,string result=string.split(os.popen('dir/w').read())