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Get current time in seconds since the Epoch on Linux, Bash

I need something simple like date, but in seconds since 1970 instead of the current date, hours, minutes, and seconds ... Is there an easy way? See Question&Answers more detail:os...

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git - How do I pull files from remote without overwriting local files?

I am trying to set up a new git repo to a pre-existing remote repo. I want my local files to overwrite ... are not overwritten by the remote? See Question&Answers more detail:os...

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formatting - The shortest possible output from git log containing author and date

How can I show a git log output with (at least) this information: * author * commit date * change I want it ... but that does not show the date) See Question&Answers more detail:os...

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c - What do pty and tty mean?

I noticed many mentions of pty and tty in some open source projects, could someone tell me what do they ... is the difference between them? See Question&Answers more detail:os...

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vim - How do I fix the indentation of an entire file in Vi?

In Vim, what is the command to correct the indentation of all the lines? Often times I'll copy and paste code ... fix this in one fell swoop. See Question&Answers more detail:os...

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python - Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?

I've been hearing a lot about the PyPy project. They claim it is 6.3 times faster than the CPython ... from switching to PyPy right now? See Question&Answers more detail:os...

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functional programming - Why are side-effects modeled as monads in Haskell?

Could anyone give some pointers on why the impure computations in Haskell are modelled as monads? I mean monad ... side-effects in it? See Question&Answers more detail:os...

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linux - Remove a symlink to a directory

I have a symlink to an important directory. I want to get rid of that symlink, while keeping the directory ... the baby with the bathwater? See Question&Answers more detail:os...

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What exactly is OAuth (Open Authorization)?

What exactly is OAuth (Open Authorization)? I have gleaned some information from OAuth Twitter Tutorial: What is OAuth And ... (e.g. ASP.NET)? See Question&Answers more detail:os...

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linux - How to set proxy for wget?

I want to download something with wget using a proxy: HTTP Proxy: 127.0.0.1 Port: 8080 The proxy does not need ... password. How can I do this? See Question&Answers more detail:os...

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version control - Difference between GIT and CVS

What is the difference between Git and CVS version control systems? I have been happily using CVS for over 10 ... is better than the other? See Question&Answers more detail:os...

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django - AADSTS50011: The reply URL specified in the request does not match the reply URLs configured for the application: '******-*****-*****-*****-*********'

I am trying to allow o365 login in my Django project using "Django Microsoft Authentication Backend (https:// ... (multi-tenant) login option See Question&Answers more detail:os...

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sql - Is it possible to see the structure of mulitple table with a single "desc".

Is it possible to see the structure of multiple table with a single "desc". i have created following table ... Is it possible in anyway? See Question&Answers more detail:os...

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vi - Replace tabs with spaces in vim

I would like to convert tab to spaces in gVim. I added the following line to my _vimrc: set tabstop=2 It ... make gVim convert tabs to spaces? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Rails server says port already used, how to kill that process?

I'm on a mac, doing: rails server I get: 2010-12-17 12:35:15] INFO WEBrick 1.3.1 [2010-12-17 12:35: ... port, but I want to kill this process. See Question&Answers more detail:os...

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zsh completion - zsh compinit: insecure directories

What does it mean and how can I fix it? zsh compinit: insecure directories, run compaudit for list. Ignore ... /local/share/zsh/site-functions See Question&Answers more detail:os...

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linux - What does "rc" mean in dot files

In my home folder in Linux I have several config files that have "rc" as a file name extension: $ ls -a ~/| ... the "rc" in these names mean? See Question&Answers more detail:os...

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automation - How can you automatically remove trailing whitespace in vim

I am getting 'trailing whitespace' errors trying to commit some files in Git. I want to remove these trailing whitespace ... this? If so, how? See Question&Answers more detail:os...

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git - How can I keep my fork in sync without adding a separate remote?

Let's assume there is a repository someone/foobar on GitHub, which I forked to me/foobar. How do I pull new ... to send everything to my fork See Question&Answers more detail:os...

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eclipse - How to fix error "Updating Maven Project". Unsupported IClasspathEntry kind=4?

I have imported maven project in STS, when I run update update project I receive: "Updating Maven Project". ... there a workaround for this? See Question&Answers more detail:os...

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How to show math equations in general github's markdown(not github's blog)

After investigating, I've found mathjax can do this. But when I write some example in my markdown file, ... symbols in github markdown pages. See Question&Answers more detail:os...

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compilation - Cross compile Go on OSX?

I am trying to cross-compile a go app on OSX to build binaries for windows and linux. I have read everything what I ... it can be done at all)? See Question&Answers more detail:os...

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What is database pooling?

I just wanted to know the concept of database connection pooling and how it is achieved. See Question&Answers more detail:os...

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vi - Find and replace strings in vim on multiple lines

I can do :%s/<search_string>/<replace_string>/g for replacing a string across a file, or :s/<search_string>/< ... 18 but not from 11-13. See Question&Answers more detail:os...

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haskell - Why not be dependently typed?

I have seen several sources echo the opinion that "Haskell is gradually becoming a dependently-typed language". The ... s the problem. (?) See Question&Answers more detail:os...

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java - ArrayList not updating inside onChildAdded function

public class DataService { private static DataService ourInstance = new DataService(); private DatabaseReference mDatabase; ... in advance! See Question&Answers more detail:os...

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javascript - How to make a button execute a php script?

How to make a html button execute a php script ? I am working on a login system where only one user can ... don't want anything to happen. See Question&Answers more detail:os...

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How can a time function exist in functional programming?

I've to admit that I don't know much about functional programming. I read about it from here and ... current time in functional programming? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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