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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CentOS 7 shell script interpretor

I am starting to write a shell script to be run in CentOS 7. Which interpreter should it call, and what should the shebang line look like? I tried this: #!/bin/sh But when I type cd /bin ...
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1answer
20 views

Background color mismatch in vim and tmux

I'm having trouble getting the full range of colors to work in vim when I'm running through tmux. I belive that it's some sort of trouble with TERM variables or 256colors, but I've done everything I ...
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4answers
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How do I exit or cancel a bad bash command?

I expect to get some flak for this, but I can't find the answer anywhere. It seems like it should be so obvious. Sometimes, when I type a bad command in a bash terminal, the cursor just jumps down to ...
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3answers
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Bash: Access parameter passed to last command [duplicate]

This is a situation I often find myself in: mkdir /Some/really/long/path/to/a/directory/ cd /Some/really/long/path/to/a/directory/ I know that ideally you would cd /Some/...etc.../a/ and then mkdir ...
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2answers
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autocomplete weirdness as a result of ugly hack for zsh prompt

I currently have the following line in my .zshrc: export PROMPT=$(printf "\e[38;5;6m")%m$(printf "\e[m")%d-%h:" " Which is supposed to show the hostname in blue and history and current working ...
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0answers
235 views

tty blinking cursor not at insertion point

I have an Ubuntu 12.04 system where I, at reboot, login a root. This morning I did the things I had to and thought about running apt-get -y upgrade I started typing this but before pressing Enter I ...
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1answer
138 views

How to display a BASH X terminal and graphics in split view window?

I created a simple education tool using BASH script which runs in an X terminal. It displays a prompt, at which users can enter choices, as described in the Bash Guide for Beginners' Catching user ...
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1answer
26 views

find out the size of open terminal

On DE we can resize terminal (gnome-terminal for example) for our convenience,how can I know the size of the terminal in terms of pixels or number of columns and rows?
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How can I disown a running process and associate it to a new screen shell?

I have a running program on a SSH shell. I want to pause it and be able to unpause its execution when I come back. One way I thought of doing that was to transfer its ownership to a screen shell, ...
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3answers
158 views

Starting a process from one terminal from another terminal

I was wondering of there is any method to start a new process or a program from one terminal into other. What I mean is: Let's say I have to run gedit abc.txt, but I don't want it to block my current ...
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31 views

What does “mouse reporting” mean?

Today I saw a description on iterm2's doc about its tmux integration. It says: To adjust split panes, you have to enable mouse reporting, even if you don't want it otherwise. What does mouse ...
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1answer
31 views

Why does my application die without nohup?

I have a simple system (running on Debian) that works by invoking a script from /etc/init.d/rc.local At the bottom of rc.local I call myScript.sh who sets up some things, and then starts a binary ...
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3answers
514 views

How to undo in spreadsheet calculator sc?

spreadsheet calculator sc is a very old console-based program. It does what the name says. I cannot find how to undo an operation in its man page. I currently use it together with RCS, ie. manually ...
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7answers
12k views

How to kill a runaway cat?

Many times I accidentally run the cat command on files that have contents up to few thousand lines. I try to kill the cat command with Ctrl+ C or Ctrl+Z, but both only take effect after the total ...
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0answers
17 views

Configure FreeBSD pf firewall (non GUI) for beginner

I am running Mac OS X 10.10, but my research has led me to the understanding that the particular flavor of pf was ported from FreeBSD. I have tried the popular GUI software (IceFloor) but it is a bit ...
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1answer
39 views

how to write a shell script to run multiple programs

I want to run two programs ssh -f mike@c15-0330-02 'cd /home && nohup Rscript L_1.R> L_1_sh.txt ' AND ssh -f mike@c15-0330-03 'cd /home && nohup Rscript L_2.R> L_2_sh.txt ' I ...
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4answers
208 views

Make tail not modify the charset of the terminal

In a linux terminal (CentOS) I am using the command tail --follow=name my-rolling-file.log in order to see the logs of my application. Sometimes in the log there is some binary data dumped (I dump ...
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4answers
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Poor TTY resolution with nVidia driver

The resolution of the TTY1-6 is poor ~ 640×480 Ubuntu 11.10 | Grub2 | nVidia | NVIDIA GT215 Board I went through the process on this site and after the edit the GRUB menu appears in the correct ...
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2answers
66 views

How are long command lines ( > $COLUMNS ) automatically wrapped to a new line?

There are several points where I/O is passed through, some of which (to my knowledge) are the shell, pty, tty, termios, terminal emulator application. In most terminal emulators, long command lines ...
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2answers
41 views

how to use ssh command to connect to multiple computers and send different commands to each computers at same time

I need to connect multiple computers to run different programs. For different computers, I need to send them different command. How to use ssh command to connect to multiple computers and send ...
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1answer
74 views

Using the grep filter

I have a text file with the name "hello.txt" that contains the following two lines: Hello WORLD! Hallo world! When I wrote the following grep -i h[ae]llo hello.txt in the terminal, the output ...
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2answers
86 views

Passing a bash command line arguments containing #

I am trying to pass pound sign as a command line argument then echoing the argument. When I pass for example 2 # 2 then I echo $1 $2 $3, I assume the terminal will output 2 # 2 but it outputs just 2. ...
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1answer
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How to redirect output of a 'xterm -hold -e' command

I know you can use tee to log output from a command in a terminal, e.g.: df -h | tee ~/log.txt However, how can I do this with a more complex command like this: xterm -hold -e program arg1 arg2 ...
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726 views

Log file visualizer in a Terminal (UNIX) (terminal logging replay)

I need to log in to various servers via ssh, and its a useful thing to log the terminal (even things in smitty menus/AIX and with correct/exact date/time). I already have a solution for this: 0) # ...
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228 views

Modify .inputrc to fix Mac Terminal bug with vi mode

I currently have a bug in my Mac's Terminal (I actually use iTerm2 but it's still there), where once I press left arrow after typing, I can't go past the last character. Is there a way I can modify ...
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513 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.
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30 views

Start a single color full screen from the terminal

For testing displays, I need to show a single color fullscreen, and quickly switch from one to the next color. Can this be done from the terminal? Something like this: DISPLAY=:0 color #ff0000
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2answers
2k views

How to install most recent version of Eclipse via the Terminal

I'm new to Linux and have just been given a VM of Oracle Linux to work with. I need to install Eclipse on it and, after a bit of research, discovered that this could most easily be done with the ...
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23 views

What Does the Output of “--help” Mean? [duplicate]

When using the --help option of a terminal program, a lot of output is produced. It usually starts with Usage: and then a bunch of things and brackets and parentheses. My question is, what doe the ...
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0answers
3k views

I can't open the terminal in Cinnamon

I have Linux Mint 13 with Cinnamon installed, but I can't open a terminal using right click nor using CtlrAltt this is just an issue with Cinnamon, why is that happening? Update I tried to solve the ...
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4answers
2k views

How to know the “level” of shells I am in?

If I open a terminal like xterm I will have a shell. Then if I use ssh or zsh I will have another "level" of shell. Is there a way to know how many times I have to Ctrl+D or type exit to exit all of ...
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How can I see if termcap or terminfo was used and how to change between them?

When I login to a remote machine (Debian Wheezy in my case) using SSH with Putty (in my case with default xterm), how can I check if the terminal defintion from termcap or from terminfo was used? What ...
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1answer
120 views

What terminal emulators support tmux control mode?

tmux has its control mode, activated with -CC, to allow the terminal emulator to control tmux. iTerm2 uses this to great effect for allowing tmux windows to appear as separate iTerm windows. Are ...
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2answers
33k views

How to display `top` results sorted by memory usage in real time?

How can I display the top results in my terminal in real time so that the list is sorted by memory usage?
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2answers
70 views

Mac Terminal - rename *.png.png to *.png

I have a bunch of images that I'd like to rename as follows: *.png.png --> *.png *.jpeg.jpg --> *.jpg *.JPEG --> *.jpg The only thing I've tried thus far is mv *.png.png *.png, but I knew ...
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35 views

Local system doesn't forward to intended port defined in OpenShift proxy app

I've set up a proxy server via OpenShift based on this tutorial and used a few days by forwarding my local system's ports to remote app's ports: $ rhc port-forward AppName The result in the proper ...
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3answers
770 views

Terminal change keys

Is it possible in the Unix terminal to change some of the keyboard keys? For example: when I press , then _ gets printed? If this is indeed possible, how do I go about doing that? I'm on Ubuntu.
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command line tool group chat utility under linux

I am working on mac osx Yosemite. I want to reach to a user under a certain IP address. (It might be local network or thru internet). I want to do it thru terminal using the default tools that ...
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6answers
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Best way to use a shell with Cygwin in Windows 7

I installed Cygwin, to be disappointed that bash by default runs within "cmd.exe". I googled around and found Console2. It's not a particularly well-designed application, as doing adjustments is ...
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Swap OS X Command/Control keys without changing bash shortcuts

I originally asked this on Ask Different, but I think since my issue is probably more with bash this would be a more appropriate site. First of all, I know that you can use the System Preferences to ...
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1answer
49 views

Using ps and watch to observe parent and child process

I got a parent and a child process running, I know their IDs. How do I utilize 'ps' and 'watch' to filter them out, so that I can see their used CPU times? I tried 'watch ps -u USERNAME', but as you ...
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1answer
54 views

Source Bash automatically in terminal

How can I automatically source a particular bash script when I open a terminal window by right clicking somewhere and choosing "open in terminal"? For example, every time I open a terminal I need to ...
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2answers
65 views

Can I recover my .bash_profile from an open Terminal tab?

I'm actually using a Macbook Pro, and am quite new to non-Windows OS' (I know, for shame!), and I've made the mistake of overwriting my bash profile, instead of appending to it... (n00b!). What I do ...
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1answer
50 views

Orphan process's parent id is not 1 when parent process executed from GNOME Terminal

I start a new process from GNOME Terminal and then this process fork a child. But when I killed the parent process the orphaned process's parent id became something other than 1 which represent init ...
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4answers
551 views

How can I turn the behavior of `gedit sOmEtHiNg & disown` into the default behavior when calling gedit from the command line?

When I gedit files from the command line, it's always locking the terminal, and I'm tired of explicitly commanding a detached process for it. I tried to alias gedit as something like gedit $* & ...
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3answers
14k views

Scroll inside Screen, or Pause Output

I use screen for my command-line tasks while managing the servers where I work. I usually run small commands (mostly file-system tasks) but sometimes I run more extensive tasks (like DBA). The output ...
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1answer
30 views

top not working in batch mode: 'dumb': unknown terminal type

I can't get top (top: procps version 3.2.8) to run in batch mode. root@zenitel063a52:~ top -b 'dumb': unknown terminal type. It will run normally in interactive mode (just when calling top). How ...
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1answer
43 views

Add a static text layer/bar in terminal

I have a script that I use to automatically generate port forwards for SSH, since I am working in several terminal windows across different servers all day, and this checks whether or not the port has ...
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1answer
45 views

I'd like to run a few terminal commands from inside vim

There are two common things I do when I code something. I either open that file in the browser or run it in node. So I'd like to create a couple of shortcuts inside vim to that effect. I'd like F5 to ...
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2answers
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How can I select and copy file names in the command line without using the mouse?

Typically, when I want to perform an action on a file I discovered in the terminal after calling [ls], I would have to - with my mouse - highlight, left click, copy file name, type the command in then ...