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1500 questions
136
votes
4 answers
Throttle the download speed of wget or curl while downloading
Is it possible to throttle (limit) the download speed of wget or curl ?
Is it possible to change the throttle value while it is downloading ?
Gautam
- 2,295
- 5
- 18
- 18
136
votes
1 answer
Why eval the output of ssh-agent?
In order to run ssh-agent I have to use:
eval $(ssh-agent)
Why is it necessary to eval the output of ssh-agent? Why can't I just run it?
jx12345
- 1,570
- 2
- 10
- 12
136
votes
7 answers
journalctl: how to prevent text from truncating in terminal
How can I keep long strings from truncating in terminal? For example if I run
journalctl -xn
There's a lot of text that I cannot read. I am open to using other programs/tools.
P.Brian.Mackey
- 1,691
- 3
- 15
- 20
136
votes
23 answers
Is there a way to get the min, max, median, and average of a list of numbers in a single command?
I have a list of numbers in a file, one per line. How can I get the minimum, maximum, median and average values? I want to use the results in a bash script.
Although my immediate situation is for integers, a solution for floating-point numbers…
Peter.O
- 32,426
- 28
- 115
- 163
136
votes
8 answers
Long line wrapping in Nano
When editing an authorised_keys file in Nano, I want to wrap long lines so that I can see the end of the lines (i.e tell whose key it is). Essentially I want it to look like the output of cat authorised_keys
So, I hit Esc + L which is the meta key…
codecowboy
- 3,362
- 7
- 23
- 29
135
votes
17 answers
Easy way to determine the virtualization technology of a Linux machine?
I have command line access to a Linux machine which may or may not be virtualized. I want to determine what kind of virtualization technology it runs on, if any (VMWare, VirtualBox, KVM, OpenVZ, Xen, ). This isn't a hostile environment: I'm not…
Gilles 'SO- stop being evil'
- 807,993
- 194
- 1,674
- 2,175
135
votes
4 answers
What's the difference between $@ and $*
According to this page, $@ and $* do pretty much the same thing:
The $@ holds list of all arguments passed to the script.
The $* holds list of all arguments passed to the script.
After searching all the top hits in google, I'm not able to find…
spuder
- 17,643
- 36
- 91
- 119
135
votes
12 answers
List packages on an apt based system by installation date
How can I list installed packages by installation date?
I need to do this on debian/ubuntu. Answers for other distributions would be nice as well.
I installed a lot of stuff to compile a certain piece of code, and I want to get a list of the…
Elazar Leibovich
- 3,131
- 5
- 27
- 28
135
votes
4 answers
How to insert text after a certain string in a file?
Right now I'm using
echo "Hello World" >> file.txt
to append some text to a file but I also need to add text below a certain string let's say [option], is it possible with sed?
EG:
Input file
Some text
Random
[option]
Some stuff
Output file
Some…
Javier Villanueva
- 1,657
- 2
- 16
- 16
134
votes
8 answers
How do I kill all screens?
I accidentally created over 1000 screens. How do I kill them all with one command? (Or a few)
BrainStone
- 3,534
- 12
- 32
- 53
134
votes
10 answers
How to determine CentOS version?
How do I determine the version of a CentOS server without access to any graphical interface? I've tried several commands:
# cat /proc/version
Linux version 2.6.18-128.el5 ([email protected])
(gcc version 4.1.2 20080704 (Red Hat…
Philippe Blayo
- 1,949
- 4
- 18
- 23
134
votes
4 answers
What is the difference between ~/.profile and ~/.bash_profile?
What is the difference between ~/.profile and ~/.bash_profile?
lakshmen
- 6,071
- 5
- 17
- 9
134
votes
10 answers
How to unzip a multipart (spanned) ZIP on Linux?
I need to upload a 400mb file to my web server, but I'm limited to 200mb uploads. My host suggested I use a spanned archive, which I've never done on Linux.
I created a test in its own folder, zipping up a PDF into test.zip.001, .002, and .003. How…
Tim
- 1,443
- 2
- 10
- 5
134
votes
6 answers
Sorting the output of "find -print0" by piping to the "sort" command
I need to be able to alphabetically sort the output of find before piping it to a command. Entering | sort | between didn't work, so what could I do?
find folder1 folder2 -name "*.txt" -print0 | xargs -0 myCommand
Industrial
- 1,771
- 4
- 13
- 12
134
votes
4 answers
Unlimited history in zsh
In zsh, I want to have unlimited history. I set HISTSIZE=, which works in bash. Now I import an old history
mv old_history .history
which is pretty big
wc -l .history
43562 .history
If I now close and start zsh again, I see
wc -l .history
32234…
pfnuesel
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