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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3
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1answer
57 views

sudo command inside heredoc block in a ssh session is not working

When i use heredoc and put all the commands inside heredoc as, ssh -t -i master.pem cloud-user@$1 <<EOSSH sudo service x restart sudo service y restart EOSSH it throws error as, ...
0
votes
0answers
56 views

tmux doesn't resize with terminal window

When I resize a terminal window containing a tmux session, tmux doesn't detect this change, but continues to function normally within the old window boundaries. tmux ls shows no other attached ...
0
votes
0answers
8 views

Keyboard's Control key detected as Primary

I use ArchLinux 64-bit, with these apps: xfce4-panel 4.12.0-1 xfce4-session 4.12.1-2 xorg-server 1.17.1-7 xorg-server-common 1.17.1-7 xorg-server-xwayland 1.17.1-7 xorg-setxkbmap 1.3.1-1 xorg-xauth ...
5
votes
3answers
261 views

How to display commands in a different terminal?

I have a raspberry pi with a screen attached to it. It boots up to a login prompt. I have no keyboard and no mouse attached to it and would like to keep it this way. I proceed to login to it via ssh ...
0
votes
0answers
18 views

Serial Console Log Redraw Characters [duplicate]

We have a server in our infrastructure that logs all serial output of devices. One of the main issues we experience with it, is that sometimes we get output that is virtually unreadable due to the ...
3
votes
1answer
134 views

terminal color theory

TLDR: What is the theory behind terminal colors? I have a fixed value of LS_COLORS in numbers: ...
3
votes
2answers
80 views

preventing terminal prompt from being overwritten by program output

Suppose I run a command like this in the terminal: ~$ echo 'sleep 2; echo "hello!"' | sh then start typing the next line. After two seconds the words "hello!\n" will be inserted into whatever I'm ...
1
vote
1answer
22 views

keyboard shortcut for terminal opens and instantly closes terminal (konsole)

After upgrading to latest Kubuntu 15.04 my keyboard shortcut ctrl+alt+T no longer works. The konsole window opens and instantly shuts down. Different keybindings dont work either. Other shortucts like ...
5
votes
1answer
115 views

How to scroll up after a kernel panic?

While tinkering with a Linux VM I regularly get kernel panics, that push up all the helpful output with stuff I don't understand and that is probably not helpful to me. The panics mostly occur during ...
0
votes
1answer
82 views

Compile OpenBroadcaster on Debian

Trying to compile obs on debian like here described: https://github.com/jp9000/obs-studio/blob/master/INSTALL gives me this error: Linking C shared library libobs.so /usr/bin/ld: ...
3
votes
2answers
546 views

Screen blinks when unauthorized action is attempted

I'm running Fedora 16. When I'm using vim or the terminal and I mistakenly direct the cursor to an inaccessible place, eg when the cursor is all the way to the top or left of the screen, the whole ...
0
votes
0answers
40 views

How can I update or upgrade BOSS Linux by terminal?

I use EduBOSS Linux 3.0. Since installation I still not update my OS. But I want to solve some Audio, Video and Graphics problems. To solve that problems I want update my BOSS Linux. How can I ...
5
votes
2answers
170 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
71 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 ...
-7
votes
1answer
52 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
57 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
350 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
421 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
2k 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
912 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 ...
3
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
62 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
11k 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
137 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 ...
551
votes
3answers
115k 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
16k 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
492 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
202 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
52 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
169 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
52 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
46 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
1k 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
282 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
55 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
44 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
53 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
699 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
83 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
928 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
228 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
83 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
83 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
207 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
72 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
34 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
68 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 ...