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How do I rename the extension for a bunch of files?

...o external calls), see one of the other answers. The following would do and does not require the system to have the rename program (although you would most often have this on a system): for file in *.html; do mv "$file" "$(basename "$file" .html).txt" done EDIT: As pointed out in the comme...
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Difference between static STATIC_URL and STATIC_ROOT on Django

I am confused by static root and want to clarify things. 3 Answers 3 ...
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Associative arrays in Shell scripts

... To add to Irfan's answer, here is a shorter and faster version of get() since it requires no iteration over the map contents: get() { mapName=$1; key=$2 map=${!mapName} value="$(echo $map |sed -e "s/.*--${key}=\([^ ]*\).*/\1/" -e 's/:SP:/ /g' )" } ...
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How can I use pickle to save a dict?

...ort pickle a = {'hello': 'world'} with open('filename.pickle', 'wb') as handle: pickle.dump(a, handle, protocol=pickle.HIGHEST_PROTOCOL) with open('filename.pickle', 'rb') as handle: b = pickle.load(handle) print a == b ...
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Shuffling a list of objects

I have a list of objects and I want to shuffle them. I thought I could use the random.shuffle method, but this seems to fail when the list is of objects. Is there a method for shuffling objects or another way around this? ...
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CSS force image resize and keep aspect ratio

I am working with images, and I ran across a problem with aspect ratios. 23 Answers 23...
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How to align checkboxes and their labels consistently cross-browsers

...stantly. How do folks around Stack Overflow vertically align checkboxes and their labels consistently cross-browser ? Whenever I align them correctly in Safari (usually using vertical-align: baseline on the input ), they're completely off in Firefox and IE. Fix it in Firefox, and Safari a...
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How do I find which rpm package supplies a file I'm looking for?

... : base Matched from: Filename : /bin/grep You may prefer the output and speed of the repoquery tool, available in the yum-utils package. sudo yum install yum-utils repoquery --whatprovides '*bin/grep' grep-0:2.5.1-55.el5.x86_64 grep-0:2.5.1-55.el5.x86_64 repoquery can do other queries such...
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Replace whitespaces with tabs in linux

... Use the unexpand(1) program UNEXPAND(1) User Commands UNEXPAND(1) NAME unexpand - convert spaces to tabs SYNOPSIS unexpand [OPTION]... [FILE]... DESCRIPTION Convert blan...
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Named string formatting in C#

... There is no built-in method for handling this. Here's one method string myString = "{foo} is {bar} and {yadi} is {yada}".Inject(o); Here's another Status.Text = "{UserName} last logged in at {LastLoginDate}".FormatWith(user); A third improved method p...