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Set environment variables from file of key/value pairs
TL;DR: How do I export a set of key/value pairs from a text file into the shell environment?
33 Answers
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How do I remove files saying “old mode 100755 new mode 100644” from unstaged changes in Git?
...y did a pull from the repository for a git project of mine,
I got a ton of files in my working copy that have no discernible changes made to them, but keep showing up in my unstaged changes area.
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How to customize ?
Is it possible to change the appearance of <input type="file"> ?
18 Answers
18...
Split code over multiple lines in an R script
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For that particular case there is file.path :
File <- file.path("~",
"a",
"very",
"long",
"path",
"here",
"that",
"goes",
"beyond",
"80",
"characters",
"and",
"then",
"some",
"more")
setwd(File)
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How can I replace a newline (\n) using sed?
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Use this solution with GNU sed:
sed ':a;N;$!ba;s/\n/ /g' file
This will read the whole file in a loop, then replaces the newline(s) with a space.
Explanation:
Create a label via :a.
Append the current and next line to the pattern space via N.
If we are before the last line, br...
How to disable text selection highlighting
...r anchors that act like buttons (for example Questions , Tags , Users , etc. which are located on the top of the Stack Overflow page) or tabs, is there a CSS standard way to disable the highlighting effect if the user accidentally selects the text?
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App Inventor 2 扩展 · App Inventor 2 中文网
...gramming the extension in Java. Extension components are packaged as aix files. Once you create an extension component, anyone can use it in their App Inventor projects. Extension component aix files can be housed anywhere on the Web. The aix files need not be stored at MIT or any other parti...
Converting newline formatting from Mac to Windows
I need a conversion utility/script that will convert a .sql dump file generated on Mac to one readable on Windows. This is a continuation of a problem I had here . The issue seems to be with newline formatting in text files, but I can't find a tool to make the conversion...
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Remove empty elements from an array in Javascript
...t even simpler arr.filter(e=>e) and this can be chained by map, reduce, etc.
– Sheepy
Feb 9 '15 at 4:32
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show 25 more comments
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How to make a Java thread wait for another thread's output?
...other (sometimes better) ways to do the above, e.g. with CountdownLatches, etc. Since Java 5 there are a lot of nifty concurrency classes in the java.util.concurrent package and sub-packages. You really need to find material online to get to know concurrency, or get a good book.
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