All Questions
14
questions
0
votes
1
answer
71
views
When is useful use "silent" for tty?
If the tty --help command is executed it shows
tty --help
Usage: tty [OPTION]...
Print the file name of the terminal connected to standard input.
-s, --silent, --quiet print nothing, only return ...
- 1,774
9
votes
1
answer
2k
views
What does >&- do in a unix / linux terminal?
I'm not too knowledgeable in the Unix command line. I found this SO answer for using the tee command without outputting to stdout, by "closing stdout" with >&- like this:
echo 'hello ...
- 191
-2
votes
2
answers
4k
views
How to turn off colors for a specific command?
Is it possible to turn off colors for a specific command like ls, but without using the api of the command itself? Is there an env variable kind of thing that will turn off coloring for a command like ...
- 99
-1
votes
2
answers
201
views
What is com command in linux?
I saw in a video on Youtube :
$ sudo com /dev/ttyUSb0 115200
[sudo] password for xt003:
setting speed 115200
C-a exit, C-a modem lines status
[status]: RTS DTR
What is com command?
I searched for ...
- 109
16
votes
3
answers
59k
views
Execute command without terminal output [duplicate]
Let me give a bit of background to my question. I am using a terminal RSS reader newsboat which allows for the usage of macros to operate on links. For example, I have a macro running cd ~/videos &...
user302940
-2
votes
4
answers
512
views
Manipulate terminal input
Is there any way to manipulate terminal input before it gets executed? Example:
apt-get update is entered in the terminal. Now I want to change it to sudo apt-get update before it gets executed.
...
- 488
0
votes
1
answer
194
views
Delete file returned by "mpc search" with single command
using the mpc search command I can find a the filename of a song like so:
mpc search title 'Two Weeks'
The output would look like this: Grizzly Bear - Two Weeks.mp3
Since I also know the location ...
- 103
3
votes
2
answers
1k
views
How can I type a command to execute when the current command completes?
I have a function (not) that displays a notification. Hence, I can use it to show when a command is complete.
sleep 5; not
However, sometimes I forget to add ;not. In OS X's terminal (a few years ago)...
- 20.1k
15
votes
5
answers
18k
views
How to recall a previous command (without execution) in order to change it?
I can't remember the trick where I could get the last command without running it:
let's say I want to be be able to access the command !1255 when pressing the up arrow key and modify the command. So ...
- 254
5
votes
1
answer
51k
views
command to clean up old log files
I was trying to automate some auto cleaning of my Ubuntu System, with Cron Jobs
I tryed to simplify this:
sudo find /var/log -type f -name "*.1.gz" -delete
sudo find /var/log -type f -name "*.2.gz" -...
- 485
0
votes
2
answers
314
views
What are the meanings of different Unix commands? [closed]
I am running Ubuntu 14.04 on my machine. I am feeling lost when I see different command line commands (or what exactly are they called?) like sudo, apt-get, mkdir, -R, -n etc. while installing ...
- 3
-5
votes
1
answer
74
views
In what directory can I find the list of terminal commands or the set of scripts that give each one its purpose/power?
Is it hidden or accessible?
Also, can you create a new script and define a new command to execute system-wide by adding it to this directory and giving it the same privileges?
- 107
1
vote
1
answer
565
views
Mysql import the most recent file from a directory
I have a directory with daily backups of my entire MySQL database.
I want to import the most recent backup into the database.
I know to import a backup I need to use mysql -u root -ppasswordhere &...
- 205
2
votes
3
answers
2k
views
Using globbing/wildcards when Opening Files from Terminal
I have a folder A. Inside the folder, there are some files a,b,c,d and there is a subfolder, B, containing files e,f,g.
Suppose I want to open files a,b,c,d: then I just type xdg-open *. However, ...
- 1,092