安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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- What is the purpose of . bashrc and how does it work?
My comment is just a stronger statement of Ilmari Karonen's 2014 comment It is factually incorrect to say " bashrc runs on every interactive shell launch" A login shell is an interactive shell, and it's the counterexample: a login shell does not run bashrc It would be correct to say " bashrc is run by every interactive non-login shell" Bash Reference Manual, section 6 2, "Bash Startup FIles"
- How can I reduce a videos size with ffmpeg?
How can I use ffmpeg to reduce the size of a video by lowering the quality (as minimally as possible, naturally, because I need it to run on a mobile device that doesn't have much available space)?
- How to make netcat use an existing HTTP proxy
Note: I'm using RHEL 5 3 version of netcat that has the following options: $ nc --help nc: invalid option -- - usage: nc [-46DdhklnrStUuvzC] [-i interval] [-p source_port] [-s source_ip_address] [-T ToS] [-w timeout] [-X proxy_version] [-x proxy_address[:port]] [hostname] [port[s]] Excerpt from the man page of nc: EXAMPLES <snip> Connect to port 42 of host example com via an HTTP proxy at 10 2
- Unable to detect Python kernels in VS Code Jupyter notebooks after . . .
Based on your solving attempt log the reason can be in version of VS code Jupyter extension that periodically breaks this feature E g for me 2025 5 2025051601 kernels are shown and 2025 7 2025072101 gives empty list The solution is to "install specific version" under uninstall drop down menu to try some more stable not the latest version
- What is the difference between . . and source? [duplicate]
When the script is done, any changes that it made to the environment are discarded script The above sources the script It is as if the commands had been typed in directly Any environment changes are kept source script This also sources the script The source command is not required by POSIX and therefore is less portable than the shorter
- How can I make a script in etc init. d start at boot?
I think I read something a while back about this, but I can't remember how it's done Essentially, I have a service in etc init d which I'd like to start automatically at boot time I remember i
- bash - read only TMOUT variable - Unix Linux Stack Exchange
You'll need to complete a few actions and gain 15 reputation points before being able to upvote Upvoting indicates when questions and answers are useful What's reputation and how do I get it? Instead, you can save this post to reference later
- Is there a way to stop having to write sudo for every little thing in . . .
source ~ bashrc Or visudo then add Defaults timestamp_timeout=360 #minutes This works also: echo 'Defaults timestamp_timeout=360 #minutes' | sudo EDITOR='tee -a' visudo EDIT3: A problem is that even as after adding a user to the sudo group, they still have to type sudo for things like cat etc shadow
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