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1500 questions
538
votes
15 answers
How to enable execution of PowerShell scripts?
When I try to execute my PowerShell script I get this error:
File C:\Common\Scripts\hello.ps1 cannot be loaded because the execution of scripts is disabled on this system. Please see "get-help about_signing" for more details.
At line:1 char:13
…
Pavel Chuchuva
- 13,107
530
votes
18 answers
How to clear the contents of a file from the command line?
I have a log file that has a bunch of stuff in it that I don't need anymore. I want to clear the contents.
I know how to print the contents to the screen:
cat file.log
I know how to edit the file, line-by-line:
nano file.log
But I don't want to…
Andrew
- 15,494
527
votes
16 answers
How to fix warning about ECDSA host key
I'm trying to setup password-less SSH on an Ubuntu server with ssh-copy-id myuser@myserver, but I'm getting the error:
Warning: the ECDSA host key for 'myserver' differs from the key for the IP address '192.168.1.123'
What's causing this, and how…
Cerin
- 9,652
520
votes
12 answers
Create/rename a file/folder that begins with a dot in Windows?
Many programs needs folder names that starts with a dot, like .emacs.d, .gimp-2.2, .jedit etc. How do I create such a folder?
When using the Windows Explorer in Windows 2000 (and other versions), I get an error message saying "You have to enter a…
Adventure10
519
votes
10 answers
Can I delete the folder C:\ProgramData\Package Cache\?
There is a new folder full of installers located at C:\ProgramData\Package Cache\. I believe this is from Visual Studio 2012 RC.
Can I delete these gigabytes of data without consequences? Are they all temporary files? It's a beta product so I'm not…
Ben L
- 5,560
519
votes
32 answers
How to check if a binary is 32- or 64-bit on Windows?
Is there an easy way to check if a binary is 32- or 64-bit on Windows? I need to check before I move the program to a 32-bit machine and experience a spectacular failure.
Septagram
- 5,678
519
votes
11 answers
What is the home directory on Windows Subsystem for Linux?
When I start bash on Windows Subsystem for Linux, it drops me in the directory
/mnt/c/Users/
When I ls this directory, I see the directories Desktop, Documents, etc. that I can see are in C:\Users\ using the Windows File…
bcf
- 5,333
516
votes
19 answers
Is there any 'sudo' command for Windows?
I always work on a non-administrator account on my Windows computer. Sometimes I need to install programs which requires administrator access. As I mostly use the Windows command prompt, is there a Windows command to escalate privileges, similar to…
ukanth
- 10,800
510
votes
16 answers
Test if a port on a remote system is reachable (without telnet)
In the old days, we used telnet to see if a port on a remote host was open: telnet hostname port would attempt to connect to any port on any host and give you access to the raw TCP stream.
These days, the systems I work on do not have telnet…
Steve HHH
- 7,430
509
votes
7 answers
How does a computer restart itself?
How can a computer restart itself? After it's off, how does it tell itself to come back on again? What kind of software is it that can do this?
Seth Carnegie
- 4,189
507
votes
6 answers
How do I exit telnet?
I start telnet by telnet host port. How do I stop it in Windows? Shockingly, Ctrl+C doesn't work.
Val
- 6,535
505
votes
9 answers
Did I just get hacked?
I am developing a consumer product, and it is supposed to be connected to the Internet, so as expected, it is connected to the Internet so that I can properly develop it.
I went away for an hour or two, and when I came back to my office I noticed…
vaid
- 3,569
502
votes
7 answers
What is the difference between executing a Bash script vs sourcing it?
What is the difference between executing a Bash script like A and sourcing a Bash script like B?
A
> ./myscript
B
> source myscript
Scottie T
- 5,221
501
votes
2 answers
How do I rename a session in tmux?
When I first started using tmux, I didn't give my first session a name. Then, as I started creating different sessions for different tasks (work, play, etc), I started naming my sessions.
Now I have a bunch of different sessions, but the first one…
Richard Jones
- 5,928
- 3
- 20
- 14
501
votes
21 answers
How can I make Chrome stop caching redirects?
I am working on a web application that is using redirects (for pretty URLs).
I am trying to debug logic in the way the redirects are working. However Google Chrome keeps remembering the redirects and even after I change the code, redirecting the…
JD Isaacks
- 8,674
- 12
- 42
- 41