I'm having some problems working with my development environment. Specifically, after I invoke the screen utility from within Cygwin I lose the ability to do tab completion. Before I invoke screen however tab completion works just fine.
I messed around with setting different values for the TERM env variable (VT100, xterm etc) but without success. It must be something trivial but I have no idea anymore. Does StackOverflow have any suggestions for me?
when you issue 'screen' from inside cygwin it might put you in another shell like /bin/sh instead of /bin/bash (and bash is where you're getting the tab completion from).
To fix the problem you could edit your .screenrc file (found in your home directory) and add in this line:
shell bash
Then try running screen again and you should see tab completion work within this new window.
The problem is that bash needs to be run as a login shell in order to have tab completion in the default cygwin setup. If you run bash in a cygwin bash you won’t have tab completion either. To set screen to run bash in login mode, add this line to your ~/.screenrc file:
shell -bash
I had a similar problem with git autocompletion not working when using screen on a linux machine, but wasn't due to a different shell. I fixed it using this question: Git autocomplete in screen on mac os and doing the following:
Get the git autocompletion script
curl https://raw.github.com/git/git/master/contrib/completion/git-completion.bash -OL
why would you want that hanging around?
mv git-completion.bash .git-completion.bash
add this line to your ./bashrc
source ~/.git-completion.bash
Then in your terminal
source ~/.bashrc
That worked for me.
(I imagine after three years you've probably solved your problem, but I hope this helps someone else)
Related
I became very interested in Linux and wanted to customize my terminal with ZSH and powerlevel10k, but after changing and logging out, the programming tools disappears. I tried very hard to understand the reason but it did not work. I am not very familiar with the $PATH command and I do not know if it works or not. Thanks for your help.
image link => https://i.stack.imgur.com/BLeLe.jpg
Changing default shell to ZSH can help
first find the path of your ZSh shell.
type -a zsh
then change it
chsh -s /bin/zsh
now log out and log in again. One can close the Terminal app and reopen it.
After digging, I finally realized that the files that were installed with SNAP are not displayed. When I installed the file in Deb format, it became known.
With xfce4-terminal (on Manjaro): Running chromium "$(xclip -o)" will open the Chromium web browser and visit the content of the clipboard (which is assumed to be a single URL).
I want a desktop launcher to do exactly this. Creating a new launcher (right click on the desktop > create launcher) with the above command in the command field won't work: Chromium is opened, but the address bar says %24%28xclip%20-o%29.
What is happening? The tiny bit of bash knowledge I have tells me that I need to escape some characters -- which ones? I tried different things like chromium \"$(xclip -o)\" and chromium "\$\(xclip -o\)", which produce similar outcomes, but I can't figure it out.
I found this specification of launcher items, but I seemingly fail to understand it well enough to apply it to my problem. Or am I completely on the wrong track?
Another application would be this: xfce4-screenshooter -f -s "$(date +screenshot_%Y-%m-%d_%T.png)" takes a screenshot and names the resulting file with a time stamp. It works being directly run in the terminal, but not when configured as an application shortcut in the keyboard settings. Analogously, the file is named $(date +screenshot_%Y-%d_%m-%T.png).
Try:
bash -c "chromium $(xclip -o)"
in your command field. That worked for me at least. (Also using Manjaro XFCE)
I have seen many ways to launch a script like putting it in profile.D, rc.local, or creating a auto start file but none of those launch the file in a visible window if at all. I need it to be in a visible window in Ubuntu. I need to do this because I am using several emulators to stream to different services, and I don't want to have to start the script on each manually.
I am using visual box for the emulator. The sh file is on a removable drive because it is an external file. I also need it to run as sudo.
Edit: I don't actually need it to run at startup. I just need to have the script run. I can probably just sleep really long for graphic to load.
Edit 2: So I created a service that launched a sh file in /usr/bin/ which was supposed to create a gnome-terminal window that ran my script. It ran, however It didn't create a visible window for some reason. I then tried to specify a display which caused gnome to freak out. Dbus was not launching correctly. another question stated that gnome would not work because of how it was designed and stated to use konsole instead. Konsole also stated that it could not connect to a display, giving a QXcbConnection error. Konsole does not have an option to specify display. I don't know what else to try
Edit 3: So I did the thing in the comment. And the service works. However it only works after I run the file that the service runs in usr/bin manually after every restart. The important parts of the file:
#!/bin/bash
sleep 60
ufw disable
ssh nateguana#$(hostname) -X
xhost +
*launch Gnome**only works after file ran manually*
I have also tried exporting DISPLAY, and changing users with su. I have not tried importing SSHD, as another question said to do, as I think that is only for non local connections. I have also tried every single arrangement of commands possible. Xhost errors stating that it is unable to open display "".
You can use gnome-terminal -e <command> to spawn a new bash terminal which runs the command.
You could use something like
gnome-terminal -e /path/to/bashfile
Bear in mind, this will end the terminal after the bash scipt is done executing.
To avoid this,in a newline add $SHELL to the end of your bash script.
PS: the -e argument is deprecated and might be removed in later versions
While installing a new RHEL on KVM host I am displaying a text file using more command. Problem is more is behaving like cat in virt-manager i.e. not displaying page-by-page and directly scrolling to the end of the page. I tried using less instead of more but it is displaying the same behavior.
Can anyone suggest what could be the reason for this?
Edit Based on comments I tried changing TERM to xterm during first boot. But that didn't have any effect. I tried this command export TERM=xterm
I got the env variables printed. I am pasting it hoping this might be a clue.
Edit I couldn't get it working. I noticed that before the script is executed, some other script is running and this might be setting some environment variable because of which more isn't working. I am now calling more command before this script start executing. And now it is working.
I suspect your environment is not correct. Specifically your $TERM environment variable may not be set. See here for the more manual entry.
The more command respects the following environment variables, if
they exist:
MORE This variable may be set with favored options to more.
SHELL Current shell in use (normally set by the shell at login
time).
TERM The terminal type used by more to get the terminal
characteristics necessary to manipulate the screen.
VISUAL The editor the user prefers. Invoked when command key v is
pressed.
EDITOR The editor of choice when VISUAL is not specified.
After help from a senior dev, I found out what was happening behind the scenes.
Suppose A.sh is executing more command like below:
more pathtofile
A.sh is being called by some other script like below:
pathtoA.sh | tee
Because of this tee command, more command in child script was not behaving as it should have been.
whenever I run eclipse from the shortcut I am unable to correctly build some of my projects because the PATH variable that I configured in .bashrc doesn't get used.
When I run eclipse from my terminal, I can build all my projects perfectly fine because it's running through the correct shell.
The problem is that I want to use the PATH variable from my .bashrc without permanently having a terminal open. I tried this before, but every day I accidentally close the terminal that's running eclipse by accident and lose all my unsaved code.
Can anyone help me?
Your tooling probably utilizes the embedded eclipse terminal. This terminal does not start providing your login/user shell. So you need to set the eclipse terminal in your Eclipse preferences to start as --login shell:
Go to:
Preferences -> Terminal -> Local Terminal
and set
"Arguments" to "--login"
restart Eclipse and your users $PATH should be used from now on.
Edit /usr/share/applications/eclipse.desktop with write privileges, i.e. sudo gedit /usr/share/applications/eclipse.desktop
Change the setting Exec=/usr/bin/eclipse to Exec=bash -ic "/usr/bin/eclipse" and save
The underlying issue is that .bashrc is not loaded in a non-interactive shell. When you start Eclipse normally clicking on its symbol, .bashrc quits early. This solution applies to all programs that are defined by a .desktop file.
In contrast, bash -i opens an interactive shell, -c "" runs a command in that shell.
I can think of two options for this problem:
write a small script, export those vars or source your .bashrc before you start your eclipse.
define those variables in /etc/environment. then they are not user-scope any more.
I prefer the 1st option.
Create simple script
#!/bin/bash
source /home/user/.environment_variables
/home/user/eclipse_cpp/eclipse -Duser.name="My Name"
2.
Next put your all system variables in file /home/user/.environment_variables (any file you want)
My looks like:
export COCOS_ROOT=/home/user/Projects/edukoala
export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64/
3.
Now you can delete your variables in .bashrc and put line
source /home/user/.environment_variables
Everything works fine :)
Well, this is already answered and the answer has been accepted. But this will also work for running your code using Eclipse. You can edit the Run Configurations and set the environment variable there. Then, Eclipse will pick up the variable from this setting while building.