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Date: 2018-01-01
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How do I delete (unset) an exported environment variable?
tags: linux, environment-variables, unset
967 votes, 3 answers and 547486 views
\r\n Before installing gnuplot I set the environment variable GNUPLOT_DRIVER_DIR = /home/gnuplot/build/src.\n\nDuring the installation something went wrong; now I want to remove the GNUPLOT_DRIVER_DIR ...\r\n
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How can Python iterate over dictionaries with 'for' loops using only the dict keys?
tags: python, python-2.7, dictionary, key, iteration
1657 votes, 12 answers and 2233477 views
\r\n I am a bit puzzled by the following code:\n\nd = {'x': 1, 'y': 2, 'z': 3} \nfor key in d:\n print key, 'corresponds to', d[key]\r\nWhat I don't understand is the key portion. How does Python recognize ...\r\n
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SQL query to select dates between two dates
tags: sql, sql-server, tsql, datetime, sql-server-2005
184 votes, 19 answers and 1195748 views
\r\n I have a start_date and end_date. I want to get the list of dates in between these two dates. Can anyone help me pointing the mistake in my query.\n\nselect Date,TotalAllowance \nfrom Calculation \nwhere ...\r\n
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How to get the current URL within a Django template?
tags: django, templates
218 votes, 7 answers and 161712 views
\r\n I was wondering how to get the current URL within a template.\n\nSay my URL was\n\n/user/profile/\r\nHow do I return this to the template?\r\n
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What's “tools:context” in Android layout files?
tags: android, xml, android-layout, android-context, android-tools-namespace
780 votes, 7 answers and 178030 views
\r\n Starting with a recent new version of ADT, I've noticed this new attribute on the layout XML files, for example:\n\n<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"\n xmlns:...\r\n
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getWidth() and getHeight() of View returns 0
tags: java, android, android-layout, getter
330 votes, 8 answers and 216966 views
\r\n I am creating all of the elements in my android project dynamically. I am trying to get the width and height of a button so that I can rotate that button around. I am just trying to learn how to work ...\r\n
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send/post xml file using curl command line
tags: xml, command-line, curl
301 votes, 8 answers and 438625 views
\r\n How can I send/post an xml file to a local server http://localhost:8080 using curl from the command line? \n\nWhat command should I use?\r\n
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What is the quickest way to HTTP GET in Python?
tags: python, http, networking
370 votes, 9 answers and 444809 views
\r\n What is the quickest way to HTTP GET in Python if I know the content will be a string? I am searching the docs for a quick one-liner like:\n\ncontents = url.get("http://example.com/foo/bar")\r\nBut all I ...\r\n
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Converting a date string to a DateTime object using Joda Time library
tags: java, datetime, jodatime
199 votes, 9 answers and 261548 views
\r\n I have a date as a string in the following format "04/02/2011 20:27:05". I am using Joda-Time library and would like to convert it to DateTime object. I did:\n\nDateTime dt = new DateTime("04/02/2011 20:...\r\n
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What are the uses of the exec command in shell scripts?
tags: shell, unix, exec
182 votes, 2 answers and 204064 views
\r\n Can anyone explain what are the uses of the exec command in shell scripting with simple examples?\r\n