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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5answers
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Terminal - copy from CLI without using mouse

While firing commands in CLI, I want to copy the command I just fired or anything I wrote in terminal and paste it somewhere else without using mouse. Like in following picture, I want to copy the ...
15
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3answers
2k views

Can I configure bash to execute “clear” before every command typed in the console?

I would like to configure bash to execute clear command every time I type some command in the terminal (before executing my command). How can I do that? I'm using Debian Linux.
0
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1answer
68 views

Terminal sandbox commands

I was wondering if there's a way to run shell commands that affect only a certain directory and its subdirectories. I'm using PHP and I want to make an app that allows the user to execute shell ...
0
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2answers
57 views

Turn off mail notification in terminal

I'm running some cron jobs on my machine and every time I fire up a terminal session I'm getting a 'You have mail' message (the job produces output on success which gets mailed to me). Any way to ...
20
votes
6answers
11k views

Removing control chars (including console codes / colours) from script output

I can use the "script" command to record an interactive session at the command line. However, this includes all control characters and colour codes. I can remove control characters (like backspace) ...
0
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1answer
134 views

How do I grep on a live log (stdout)?

I'm not sure if that what stdout is, but that's what I think. What I want to do is filter out a certain log message when running an executable. I tried this: Executable 2>&1 /dev/null | ...
10
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6answers
5k views

How can I open a new terminal in the same directory of the last used one from a window manager keybind?

I'm using a tiling window manager and I switched from gnome-terminal with multiple tabs to multiple urxvt instances managed by the window manager. One of the features I miss is the ability to open a ...
13
votes
1answer
2k views

What protocol/standard is used by terminals?

I was wondering how the "GUI" of a command line application is communicated over a network. Most of the time, it's quite simple (plain text / input) but sometimes it's more complex (aptitude). Is it ...
15
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3answers
13k views

What is stored in /dev/pts files and can we open them?

According to my knowledge, /dev/pts files are created for ssh or telnet sessions.
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1answer
164 views

Is it possible to open a terminal with specified tty/pty

(I am using Ubuntu.) In my understanding tty is just a kind of port. You input something and it should output something. And a terminal (emulator) is a software handle those input and output. ...
0
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0answers
46 views

wrong MC colors when launched via xterm -e mc

I use ini-customized color theme in Midnight Commander 4.8. [Colors] base_color=linux:normal=cyan,rgb002:input=white,cyan:inputunchanged=black,cyan:dhotnormal=red When I launch xterm and then ...
2
votes
2answers
274 views

tmux: shared session, one user in a pane, another in another pane, two different cursors

I've decided to try tmux: have been reading the docs and googling around, trying to find a way to have two users sharing a session, each with a different cursor. However, giving 777 permissions to ...
0
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2answers
213 views

Running a program (command) on terminal after login screen in Ubuntu 14.04

NOTE :- This is not a duplicate question. I have searched about 100 times on this site and several others including Ubuntuforums,askubuntu and stackoverflow. I couldn't get my work done. OBJECTIVE :- ...
1
vote
0answers
69 views

When I use zip, how can I display the overall progress without flooding the command line?

A fixed-length progress bar, a file or byte count, or better yet a timer showing the estimated time remaining would be ideal. zip's standard behavior seems to be to print a line for every file ...
12
votes
2answers
6k views

What's the difference between various $TERM variables?

I tried vt100, vt102, vt220, and xterm by using top. But I can't find their difference. Is there any other term type? What's their difference?
3
votes
1answer
119 views

How do I come by this pty and what can I do with it?

It seems that a simple shell redirect from /dev/ptmx gets me a new pseudo-terminal. $ ls /dev/pts; ls /dev/pts </dev/ptmx 0 1 2 ptmx 0 1 2 3 ptmx It disappears as soon as the process that ...
1
vote
2answers
74 views

Vim colors conflicting with terminal ones

For most vim colorschemes, they appear different than advertised when I open vim in xterm. I've been using xterm-256color and set t_Co=256. A similar thing happens when I use xfce-terminal, but the ...
0
votes
1answer
73 views

Running Linux in text mode - blank diamonds instead of Chinese/Punjabi etc. characters

While in the text mode and using, for example, Chinese/Simplified or India/Punjabi locale I get blank diamond symbols in the console in place of the characters. I am running Xubuntu with ...
1
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0answers
26 views

If I cancel when prompted for my Git password, I can no longer see anything I type, until I log back in [duplicate]

Everything still works (typing "exit", for instance, exits), but I can't see anything I type. There's not "funny characters", just nothing. Even re-running git and entering the password properly ...
0
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1answer
46 views

Problem connecting with Beagleboard through serial?

I'm trying to connect to a BeagleBoard on Ubuntu using a Serial-to-USB adapter. It is currently being recognized as ttyUSB0 on our system. When I run "screen /dev/ttyUSB0 115200" the output just says ...
3
votes
1answer
1k views

How to change a font/background color in transparent windows?

When you select something, the color of the selection usually changes to the font color, and the font color is being set to backgroud color. So, if you have a black background in a terminal, and the ...
2
votes
1answer
71 views

Can I see remote terminal? [duplicate]

I am running a C program in a Cent OS machine. Now, the lab is locked in this weekend, but I have access to another lab of the institute. I can access the files etc. via SSH from a Mac machine in the ...
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2answers
72 views

Locked out of my own mac terminal?

So recently, some of my friends had been tampering with my files and data through terminal, so I decided to secure it by doing two things: First, I added the following to my ~/.bash_profile for ALL ...
1
vote
2answers
46 views

'Present' terminal window on shell/executable command?

Currently using Xfce and xfce4-terminal, but suggestions involving other Linux-based systems may still be helpful. I start a longish-running program in a terminal window, then alt-tab away and do ...
1
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0answers
40 views

how are runlevels from CentOS 6 chkconfig translated for CentOS 7 systemctl?

How would I translate the following command from CentOS 6 to run in CentOS 7? chkconfig --level 345 dovecot on My first guess is to type the following instead: systemctl enable dovecot But ...
13
votes
1answer
847 views

Documentation on LESS_TERMCAP_* variables?

I see these pretty colors in manpages viewed with less when setting a bunch of these variables. What do they mean, where is the documentation? Is this interpreted by less or termcap? screenshot
1
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1answer
163 views

Set default xdg-open application to terminal program

Is it possible to use terminal vim with xdg-open? I don't have a GUI text editor because I only use vim through the terminal. (I don't care very much for gvim either.) Is it possible to tell xdg-open ...
0
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0answers
46 views

Can I “hijack” a UNIX shell from another login? [duplicate]

Let's say I'm starting a job in a Unix terminal on a machine (a Mac if it matters), and this process does a lot of things and keeps printing output to the terminal. Then I go to another machine and ...
12
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2answers
901 views

Ctrl+D for ending terminal line input

If I do $cat > file.txt text<Ctrl+D><Ctrl+D> Question1: If I don't press enter, why do I have to press Ctrl+D twice? If I do $cat > file.txt pa bam pshhh<Ctrl+Z> [2]+ ...
1
vote
1answer
41 views

How does executing a file change the std input?

Imagine I have a script, which contains the goto command. The goto command will search in the std input for a line like this : jumpHere. But the std input is by default the terminal. It only makes ...
1
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2answers
89 views

Ctrl-z doesn't work in vi launched from Gnome terminal

I'm trying to switch Vi launched from Fedora Gnome terminal to background and go back to bash with Ctrl-Z but it doesn't seem to do anything.
0
votes
1answer
79 views

aterm or gnome-terminal window unresponsive to keyboard events

I try to investigate a problem: Depending on the way I launch aterm or gnome-terminal, the window may or may not be responsive to keyboard events. The cause of the problem may reside in Aterm, ...
0
votes
1answer
54 views

Selectively record commands and output from terminal to MySQL table

In some situations I would like to store complete commands and output from terminal sessions in a MySQL database. Ideally I would just copy the command and output from the terminal to my clipboard ...
3
votes
3answers
3k views

Sending message from one terminal user to another user

I have a user of name x in tty1 and y in tty2. Now x wants to write some message to y and vice-versa. Now I typed in tty1 terminal write y tty2 It is showing write:write:you have write permission ...
1
vote
0answers
82 views

Unable to create a configuration directory for [FishShell] Please set the $XDG_CONFIG_HOME variable

I'm getting this error when starting fishshell: melanie:~ melanie$ fish fish: Unable to create a configuration directory for fish. Your personal settings will not be saved. Please set the ...
0
votes
0answers
33 views

Errors on start of iTerm in Mac

I am getting two errors on startup of iTerm terminal on Mac OS X Yosemite. They are: bash: 1.25.32: command not found bash: Welcome: command not found I am unable to find a definitive resource on ...
5
votes
11answers
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How do I run the same linux command in more than one tab/shell simultaneously?

Is there any tool/command in Linux that I can use to run a command in more than one tab simultaneously? I want to run the same command: ./myprog argument1 argument2 simultaneously in more than one ...
3
votes
2answers
11k 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 ...
2
votes
0answers
37 views

What are the benefits of using Tmux at all times? [closed]

I have been using the terminal for all of my local work, and have only been using tmux when I am ssh'd onto another machine and want to make sure I don't lose work if the connection closes. A software ...
1
vote
2answers
55 views

How to get a positive signal upon the successful completion of a command

For each of the following commands (four in total) I would like get an exception if one of them throws an exception if case of an error. Ultimately, I will run this through Python using os.system(). ...
0
votes
0answers
96 views

How to disable “Warning: Program '/bin/bash' crashed” message?

I'm using Kubuntu 14.04. When I exiting terminal emulator (konsole or yakuake) by doing something like kill -9 $$ it doesn't close, and saying: Warning: Program '/bin/bash' crashed. How could I ...
2
votes
2answers
3k views

Command not found problem in Linux-Ubuntu terminal

My friend is having problem in trying to call make to compile an application which both me and a second friend have previously successfully compiled. The file uses a "linux-devkit" pack that possess ...
0
votes
1answer
106 views

Sudo command not working on Intel Galileo Gen 1

I have an Intel Galileo Gen 1 Arduino board and I am using it over SSH with Ethernet. When I try to use the sudo commands the bash terminal reports this, a missing command! I am using the bigger Linux ...
4
votes
0answers
125 views

Change Zsh theme in Android Studio

I've recently jumped ship to zsh and I'm using the Oh my Zsh! theme blinks. It looks very nice in the OSX Terminal, but it looks very bad in Android Studio's terminal. So my question is is there a ...
8
votes
2answers
590 views

Are there any linux terminals which can handle all key combinations?

I like to use emacs in terminal mode (-nw), but it seems most (all?) terminals can't handle some key combinations - for example, C-<RET> or C-M-%. I know this is because most terminals emulate a ...
1
vote
1answer
65 views

Is there a /dev/pts alternative on Mac OSX?

I'm attempting to determine how many terminal windows are open, as described in this Q&A answer. However there doesn't seem to be a /dev/pts on Mac OSX. Is there an alternative to this?
4
votes
1answer
654 views

Untar a specifc folder within tar.gz

How do I untar/uncompress a specific folder within a tar.gz using the terminal/commandline (Ubuntu 14.04 (Trusty Tahr))? Precise: -file.tar.gz -- folder1 -- folder2 How to extract... ... ...
2
votes
3answers
1k views

console vim in screen session: remap Ctrl-Shift-Left, Ctrl-Shift-Right to not delete lines

I have my gvim setup so that I can select word-wise with Ctrl-Shift-Right, Ctrl-Shift-Left etc. (yes, I know it's a bad habit, but it works for me..). Unfortunately, these key combinations delete ...
13
votes
1answer
240 views

What is the name of this terminal window graphical trick, which shows accented edges around highlighted text?

I've noticed a few screenshots of terminal windows online which show thin highlighted edges around status bars or highlighted lines. In the following example, note the light grey edging around lines ...
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votes
4answers
4k views

Arch Linux terminal not starting

I just installed Arch Linux following a video tutorial from youtube for the first time. However, when I try starting the GNOME terminal it won't start. It will say Terminal at the top of my screen for ...