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1500 questions
227
votes
8 answers

How can I normalize audio using ffmpeg?

I want the loudest peak sound in a movie clip to be as loud as the codec allows, then have every other sound amplified accordingly. What's a practical example in order to accomplish this using ffmpeg?
Jon Skarpeteig
  • 2,391
226
votes
9 answers

Is there still a reason to choose a 10,000 RPM hard drive over an SSD?

For anyone who's serious about storage performance, SSDs are always the fastest solution. However, WD still makes their 10,000 RPM VelociRaptor hard drives, and a few enthusiasts even use enterprise-grade 15,000 RPM SAS hard drives. Aside from cost,…
bwDraco
  • 46,683
226
votes
15 answers

Is there a modern browser that runs on Windows 3.1?

Simply put, is there a modern browser that runs on Windows 3.1? Sometimes there's situations that restrict the ability for an environment to be upgraded, and web browsing is a must these days. The idea is that that it can render a site such as…
Chad Harrison
  • 6,229
226
votes
9 answers

PowerShell equivalent of curl

Is there an equivalent of curl in PowerShell? Does it have some similar built-in capability or is there a 3rd party cmdlet?
Borek Bernard
  • 15,019
226
votes
12 answers

How can I change to the previous directory instead of going up?

I currently spend a lot of my working hours moving back and forth between two paths which are very far down the tree and divert from each other at root. It strikes me that my life would be a lot easier if there was an argument for cd that takes the…
Yitzchak
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226
votes
6 answers

What's different between Ctrl+Z and Ctrl+C in Unix command line?

I'm using Mac OS X Terminal. And I use Ctrl+Z or Ctrl+C to stop some programs. But I realized that I don't know what they're exactly doing. What are they and what's the difference between them? This question was a Super User Question of the Week. …
Eonil
  • 6,094
226
votes
8 answers

How to detach a tmux session that itself already in a tmux?

I've opened a tmux session on my local machine, and ssh'd into the remote machine. After this, I typed tmux attach on the remote machine, then I got a remote tmux session on my local tmux session. Now I want to detach from the remote tmux session,…
superadmin
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226
votes
4 answers

Using watch with pipes

I'd like to run this command: watch -n 1 tail -n 200 log/site_dev.log | grep Doctrine But it does not run, because "I think" that the grep tries to run on the watch instead of the tail... Is there a way to do something like watch -n 1 (tail -n 200…
Tommy B.
  • 2,609
225
votes
10 answers

How can I "group by" and sum a column in excel?

I'm trying to figure out how to "group by" values in an Excel spreadsheet. Given the following example (this is an inventory sheet I use at my restaurant:) At the far right of the spreadsheet there is a column named Cost of Goods Sold. I would like…
Ian P
  • 2,353
225
votes
9 answers

How can I find only the executable files under a certain directory in Linux?

How can I find only the executable files under a certain directory in Linux?
HaiYuan Zhang
  • 4,197
223
votes
4 answers

How to delete a file with a path too long to be deleted

I was working with some computer vision source code I found and didn't realize that it creates a cache file that has a VERY LONG name and now I can't delete the 2 of them. I tried to rename it to a shorter name but I can't do anything to the file, I…
Chris
  • 2,341
223
votes
7 answers

scp between two remote hosts from my (third) pc

I have two remote hosts. host1-> 10.3.0.1 host2-> 10.3.0.2 Both run an ssh server. The ssh server listens on port 22 in host1 and on port 6969 in host2. Now, using my local machine, I need to copy something from host1 to host2 without logging into…
uwais ibrahim
  • 2,331
223
votes
7 answers

Why does Ctrl + V not paste in Bash (Linux shell)?

When I copy something to the clipboard and press Ctrl + V in Bash, nothing happens; However, right clicking and selecting Paste does the job. Why? Is there any reasonable issue (I'm sure there is) behind this behavior in Linux?
Yasser Zamani
  • 2,727
223
votes
9 answers

Change default code page of Windows console to UTF-8

Currently I'm running Windows 7 x64 and usually I want all console tools to work with UTF-8 rather than with default code page 850. Running chcp 65001 in the command prompt prior to use of any tools helps but is there any way to set is as default…
Regent
  • 2,536
223
votes
7 answers

Is it possible to run a motherboard in distilled water?

I have read that distilled water doesn't conduct electricity. This, in other words, means that we can submerge electronic devices like PCs/laptops in it and run them without any problem. I haven't seen much information about this on the internet,…
Suici Doga
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