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What's the difference between HEAD^ and HEAD~ in Git?
When I specify an ancestor commit object in Git, I'm confused between HEAD^ and HEAD~ .
15 Answers
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How do I install the OpenSSL libraries on Ubuntu?
I'm trying to build some code on Ubuntu 10.04 LTS that uses OpenSSL 1.0.0. When I run make, it invokes g++ with the "-lssl" option. The source includes:
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How to insert a newline in front of a pattern?
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This works in bash and zsh, tested on Linux and OS X:
sed 's/regexp/\'$'\n/g'
In general, for $ followed by a string literal in single quotes bash performs C-style backslash substitution, e.g. $'\t' is translated to a literal tab. Plus, sed wants your newline literal to be escaped with...
Check if a value exists in pandas dataframe index
I am sure there is an obvious way to do this but cant think of anything slick right now.
6 Answers
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Commenting in a Bash script inside a multiline command
How can I comment on each line of the following lines from a script?
7 Answers
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Linux command to print directory structure in the form of a tree
...sh script that will print the directory structure in the form of a tree, e.g.,
7 Answers
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Remove commas from the string using JavaScript
I want to remove commas from the string and calculate those amount using JavaScript.
2 Answers
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What to do Regular expression pattern doesn't match anywhere in string?
I am trying to match <input> type “hidden” fields using this pattern:
8 Answers
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How to install a previous exact version of a NPM package?
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If you have to install an older version of a package, just specify it
npm install <package>@<version>
For example: npm install express@3.0.0
You can also add the --save flag to that command to add it to your package.json dependencies, or --save --save-exact f...
Python equivalent of D3.js
Can anyone recommend a Python library that can do interactive graph visualization?
15 Answers
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