A terminal is an environment for text input/output. Inside the terminal, one runs command-line and text mode programs (including shells).

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5
votes
2answers
99 views

How are terminal length and width forwarded over SSH and telnet?

When I view the length and width of my terminal emulator with stty size then it is 271 characters long and 71 lines tall. When I log into another server over SSH and execute stty size, then it is also ...
0
votes
1answer
62 views

What does this ls command do? [duplicate]

what does this command do if it was executed in my current working directory that has files in it? ls 2> result I think whatever ls writes will be redirected to the result file? Is that correct and ...
-6
votes
1answer
44 views

Find Command: display the file numbers [closed]

I have a couple of questions about the find command. How to show how many files and directories(only the result numbers) within the /var directory (and below) are owned by someone other than you or ...
2
votes
1answer
54 views

What happens step by step when using “rm -rf directory”? [duplicate]

Let's assume that I have 150 GB of data in a directory and I have accidentally run this command for a directory. Suddenly I realised, I should not put "/" in the beginning of directory and I ...
5
votes
3answers
234 views

cssh: change terminal from xterm to terminator

I would like cssh to use terminator terminal emulator, instead of the default xterm. In ~/.clusterssh/config I have changed the following line: #terminal=/usr/bin/xterm terminal=/usr/bin/terminator ...
0
votes
4answers
348 views

How do I print a certain line of python code using the Linux terminal?

If I am writing some python and I only want the terminal to show a certain line, what command do I use? For example my program is: print("line one") print("line two") print("line three") And I only ...
5
votes
2answers
1k views

command line method or programtically add ssh key to github.com user account

Is there a way to identify with a username and password to github.com servers for the purpose of adding an ssh key to the github user account? So far everything I've read suggests that a users ssh key ...
6
votes
1answer
822 views

How to set a background image for urxvt?

How do I set a tiled background image in urxvt? I have tried the following alternatives in my .Xresources file: URxvt*backgroundPixmap: /home/jgg/Pictures/tiles/escheresque_ste.png;style=tiled ...
2
votes
3answers
2k views

What is the problem with the output of plink?

On my Windows7 machine, I'm traversing to the installed path of PuTTy Application and running: plink <hostname> to connect to my remote Linux host. I see some unrecognized characters in the ...
2
votes
2answers
61 views

What allows a command to be typed while the previous command is still running in foreground?

Sometimes I have seen when one program (say A) is running in the foreground and printing its output to stdout, I can type another command (say B), and when I press Enter it is run, even though I had ...
15
votes
5answers
10k views

Is there a way to lock command line?

For example, in X session, I can use Ctrl-Alt-L to lock the screen, so it would ask for password to unlock and prevent somebody from messing with mine computer. But if I have an open terminal session ...
1
vote
1answer
118 views

How do I autostart devilspie under gnome3 on fedora 21?

I am attempting to embed a gnome-terminal on my desktop using devilspie. Adding a devilspie.desktop file in the ~/.config/autostart directory does nothing. It does not execute on login. However, ...
0
votes
0answers
13 views

Changing from bash-4.3$ to [user@hostname currentfolder]# [duplicate]

I'm tring out different linux distros. I've settled on Fedora, but I'm a bit confused. On my other distros, my terminal would open up with a [user@hostname currentfolder]# before each prompt. Now I ...
536
votes
3answers
110k views

What is the exact difference between a 'terminal', a 'shell', a 'tty' and a 'console'?

I think these terms almost refer to the same thing, when used loosely: terminal shell tty console What exactly does each of these terms refer to?
4
votes
2answers
15k views

Search text in command output on a PuTTY terminal

I would like to know how to search particular text on the terminal. If I do cat of log files, I would like to find certain words like job or summary so that I don't have to read through the entire log ...
7
votes
4answers
421 views

How to read over 4k input without new lines on a terminal?

So I have a lot of data WITHOUT NEW LINES on the clipboard (it's a large SVG file on one line). I went $ cat >file.svg then tried to paste (in Gnome Terminal), but only the first 4kB characters ...
0
votes
1answer
112 views

sudo apt-get update doesn't work

I am using ubuntu 14.04 LTS. when I run sudo apt-get update command in terminal, following error will appear E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) ...
1
vote
1answer
34 views

Resizing the terminal window for ipython command prompt

I am using the OS X Terminal (I know, not Linux or Unix, but hopefully that's irrelevant here) for a number of operations, and commonly use nano to quickly edit files. In doing so I often resize the ...
6
votes
1answer
119 views

Terminal does not accept pasted or typed lines of more than 1024 characters [duplicate]

When I enter text on stdin in an OS X Terminal, a single line is limited to 1024 characters. For example, cat > /dev/null beeps after I type (or paste) a line longer than this, and refuses to ...
2
votes
0answers
44 views

Terminal pty name according to the source IP address

Is possible to have some Unix (either just in Linux) 'engine' mounting the pts'es (terminals) names according to their IP (socket) source ? In the past we could map each physical ports to its tty ...
1
vote
1answer
44 views

Why is sudo slow when I mistype my password? [duplicate]

If I'm asked for the sudo password, after typing it in correctly, the terminal moves on almost instantaneously. However, if I mistype my password, it takes a few seconds before working it out and ...
6
votes
2answers
887 views

How to draw a single pixel in a terminal?

Until now I used characters to draw images, shapes etc in a terminal. Is it possible to draw a single pixel? Let's say: foo 1 1 red This will draw a red pixel at the coordinate (1, 1). Is there ...
2
votes
2answers
238 views

How can I import new Unix commands on my OS X Terminal?

There are a number of Unix commands which do not work on my OS X Yosemite 10.10.3, Terminal Version 2.5.3. For instance, I often use this cheatsheet of Unix commands: ...
1
vote
1answer
31 views

LS_COLORS for 256-color terminal

I thought ls colors are defined as <file_type>=[<bg(40-47)>];<font_spec(0:5)>;<font_color(30-37)> but, I recently found this where there are more colors and colors are ...
1
vote
1answer
39 views

Malloc error after running chown -R on /usr/

I'm running Yosemite on a macbook air. I was following the suggestions after running brew doctor which told me that usr/local did not have write access. It told me to run chown on a bunch of ...
0
votes
1answer
42 views

page up and page down alternative for horizontal scrolling in less

In vertical scrolling using less the page up and page down keys are working. Which keys scrolls one page down/up vertically? The less was started with -S option.
2
votes
5answers
2k views

How can I run a process in a terminal window and then hide that window?

I want to run python ~/program/proxy.py in a terminal when I boot up. And then hide this terminal window (because it is just a proxy program, and I don't want to see the debug info). So how can I get ...
4
votes
1answer
508 views

Ping doesn't work, but I can browse through the internet

Pinging my default gateway is working properly and I can browse google and facebook in my browser. But, ping google.com and ping facebook.com on my terminal are not working. PING google.com ...
1
vote
2answers
74 views

Run commands “without” terminal [closed]

Months ago I saw a guy running commands from a small, text-box-like window, showing nothing else other than the text-box for you to write the command. Such text-box would popup by pressing some ...
0
votes
2answers
766 views

How to update CodeBlocks in Kali Linux?

I installed CodeBlocks on Kali Linux but I got 10.05 version and I want to update it to 13.12, preferably via terminal. Also I would like to know how to update any application this way.
1
vote
1answer
169 views

Getting Python errors whenever I try to use terminal in Linux Mint

I've had Mint installed as a dual boot on my laptop for some time. I use it as my dev environment, for desktop and web related coding. I recently started getting errors which have rendered my terminal ...
1
vote
1answer
68 views

White terminal cursor and yellow Vim searches

I have a blinking block cursor in the XTerm. The goal is to always be able to tell my current position. It usually works fine, but it fails when I place my cursor on a background similar to the cursor ...
2
votes
1answer
63 views

Bind C-i and TAB keys to different commands in terminal applications via .inputrc

For what I have tried, "TAB" and "C-i" in .inputrc seems to mean the same thing, whatever I bind to one is bound to the other. I know that originally, it was the same thing and that this behavior is ...
1
vote
4answers
200 views

How to set the process won't be terminated when the terminal stops

[Edit] Make it simple. I invoked java xxx... on Machine A using putty to connect from Machine B. However I cannot reach Machine B. How can I connect Machine A from Machine C to set the running ...
4
votes
0answers
62 views

rm -rf ~/.Trash/* doesn't work, Mail Attachment.eml:OECustomProperty unable remove

I'm on OSX10.10.3, I've had a file in my trash for about 6 months or so. I have a file in my trash, 2 actually. That are from my mail cache that I dumped since I don't have the space on my SSD for my ...
2
votes
3answers
4k views

Endless data loop from dev/ttyUSB while sending AT commands

I have problem sending AT commands to my USB modem. At first I tried php-serial class, but when i was reading data, I got endless loop with strange data. Then I tried to debug problem and opened putty ...
0
votes
2answers
33 views

Where can I find the speciation that a terminal emulator must meet?

I'm interested in writing a terminal emulator for fun. I roughly understand the division of labor between the shell and the terminal emulator from this post: What is the exact difference between a ...
1
vote
1answer
58 views

Nautilus to open in the foreground

From the terminal I can open the file manager using nautilus ., but the window opens behind the current terminal window (on my Ubuntu 14.04). Is there a way to call nautilus from the terminal and ...
2
votes
4answers
189 views

Recovering Invisible screens and dropdowns on linux

The terminal has gone invisible , although I can type commands and they get executed: Even some firefox download dropdowns are invisible, I can click the items in the drop down list but the list ...
3
votes
2answers
152 views

Center Mutt pager horizontally

Is there a way to horizontally center emails when reading them in a larger terminal using mutt? I'm not interested in centered justification of the text in the email, but I am interested in forcing ...
2
votes
1answer
150 views

Can't open Gajim

When I try to open Gajim using terminal on gnome I get the following: Traceback (most recent call last): File "gajim.py", line 106, in <module> import common.configpaths File ...
2
votes
1answer
55 views

change terminal appearance according to server

I have 2 different serves (all running Linux) to which I connect via ssh . After login all terminal background looks same. I want to have different color theme or background for different servers. For ...
0
votes
1answer
55 views

csh: Terminal inherits environment variables from an unknown location

I'm on a shared machine running CentOS 5.10 that I log onto using VNC from Windows 7. Our default and official shell is csh. Every time I open a new terminal, I have three particular environment ...
1
vote
2answers
76 views

Show output of a command run inside screen if it exits with errors

I am using the screen command for starting server running in foreground. But in case there is an error when starting server I am not able to see the output of command. I have to run it again without ...
6
votes
2answers
754 views

bash - why does \x0d\x20 erase the line

This is the view from gedit editor: and the view from vim editor: I then try to grep it, it did grep successfully if i put Log instead of Tog, but the output is corrupted: [xiaobai@xiaobai grep]$ ...
1
vote
1answer
33 views

Spawn another terminal running tmux (from a terminal running tmux)

I'm currently using urxvt with tmux, run as such: urxvt -e tmux I wish to start up a completely separate instance of urxvt -e tmux (another urxvt, also running tmux) using the terminal. (More ...
0
votes
1answer
38 views

Build gdal with mrsid plugin on fedora 21 server

I've been having an issue for over a week now. The problem is, I can't build gdal source with MrSid DSDK on Fedora 21 Server. I have built and installed gdal with MrSid on Fedora 21 without any ...
1
vote
1answer
91 views

Save all the terminal output to a file

Is there some way of saving all the terminal output to a file with a command? I'm not talking about redirection command > file.txt Not the history history > file.txt, I need the full terminal ...
-2
votes
1answer
64 views

I am using Kali Linux, but however, I want to know how to switch my normal user account into root admin?

I want to know how to switch my normal user account into root admin? For example, when I log into my account I cannot modify and save sources.list from etc/apt/folder nor can I get an update for ...
4
votes
5answers
590 views

Only output most recent 10 (or n) lines of a lengthy command output

I have a command that outputs thousands of lines. I actually need these lines in order to see the progress of the command. But I do not need to see more than the 10 most recent lines. How can I do ...