So I want to run source ~/.bashrc in VSCode terminal so I can load my own command to run on it. Right now I have to manually on the command line. Are there anyway I can run the command before the terminal start? (OS: Mac)
Since you are using macOS, the ~/.bashrc file is not used, instead it's ~/.bash_profile. You can do one of the following:
Put your custom commands in ~/.bash_profile, or
Source your ~/.bashrc from your ~/.bash_profile:
Create a file ~/.bash_profile with the following content:
source ~/.bashrc
Give the new file the same permissions as ~/.bashrc
Related
I'm on a Windows machine using Git 2.7.2.windows.1 with MinGW 64.
I have a script in C:/path/to/scripts/myScript.sh.
How do I execute this script from my Git Bash instance?
It was possible to add it to the .bashrc file and then just execute the entire bashrc file.
But I want to add the script to a separate file and execute it from there.
Let's say you have a script script.sh. To run it (using Git Bash), you do the following: [a] Add a "sh-bang" line on the first line (e.g. #!/bin/bash) and then [b]:
# Use ./ (or any valid dir spec):
./script.sh
Note: chmod +x does nothing to a script's executability on Git Bash. It won't hurt to run it, but it won't accomplish anything either.
#!/usr/bin/env sh
this is how git bash knows a file is executable. chmod a+x does nothing in gitbash. (Note: any "she-bang" will work, e.g. #!/bin/bash, etc.)
If you wish to execute a script file from the git bash prompt on Windows, just precede the script file with sh
sh my_awesome_script.sh
if you are on Linux or ubuntu write ./file_name.sh
and you are on windows just write sh before file name like that sh file_name.sh
For Linux -> ./filename.sh
For Windows -> sh file_name.sh
If your running export command in your bash script the above-given solution may not export anything even if it will run the script. As an alternative for that, you can run your script using
. script.sh
Now if you try to echo your var it will be shown. Check my the result on my git bash
(coffeeapp) user (master *) capstone
$ . setup.sh
done
(coffeeapp) user (master *) capstone
$ echo $ALGORITHMS
[RS256]
(coffeeapp) user (master *) capstone
$
Check more detail in this question
I had a similar problem, but I was getting an error message
cannot execute binary file
I discovered that the filename contained non-ASCII characters. When those were fixed, the script ran fine with ./script.sh.
Once you're in the directory, just run it as ./myScript.sh
If by any chance you've changed the default open for .sh files to a text editor like I had, you can just "bash .\yourscript.sh", provided you have git bash installed and in path.
I was having two .sh scripts to start and stop the digital ocean servers that I wanted to run from the Windows 10. What I did is:
downloaded "Git for Windows" (from https://git-scm.com/download/win).
installed Git
to execute the .sh script just double-clicked the script file it started the execution of the script.
Now to run the script each time I just double-click the script
#!/bin/bash at the top of the file automatically makes the .sh file executable.
I agree the chmod does not do anything but the above line solves the problem.
you can either give the entire path in gitbash to execute it or add it in the PATH variable
export PATH=$PATH:/path/to/the/script
then you an run it from anywhere
I just installed Home-brew and now I'm trying to insert the home-brew directory at the top of my path environment variable by typing in two commands inside my terminal. My questions are these:
What is a path environment variable?
Are the two codes provided me correct?
echo "export Path=/usr/local/bin:$PATH" >> ~/.bash_profile && source ~/.bash_profile
After this I am to type in brew doctor. Nothing is happening as far as I can see.
Can anyone offer me some advice or direction?
I installed brew in my new Mac M1 and ask me to put /opt/homebrew/bin in the path, so the right command for this case is:
echo "export PATH=/opt/homebrew/bin:$PATH" >> ~/.bash_profile && source ~/.bash_profile
TL;DR
echo "export PATH=/usr/local/bin:$PATH" >> ~/.bash_profile && source ~/.bash_profile
is what you want.
To answer your first question; in order to run (execute) a program (executable) the shell must know exactly where it is in your filesystem in order to run it. The PATH environment variable is a list of directories that the shell uses to search for executables. When you use a command that is not built into the shell you are using the shell will search through these directories in order and will execute the first matching executable it finds.
For example when you type: mv foo bar the shell is almost certainly actually using an executable located in the /bin directory. Thus fully the command is
/bin/mv foo bar
The PATH environment variable therefore saves you some extra typing. You can see what is in your PATH currently (as you can with all environment variables) by entering:
echo $<NAME OF VARIABLE>
So in this instance:
echo $PATH
As I mentioned earlier, ordering is important. Adding /usr/local/bin to the beginning of PATH means that the shell will search there first and so if you have an executable foo in that folder it will be used in preference to any other foo executables you may have in the folders in your path. This means that any executables you install with brew will be used in preference to the system defaults.
On to your second question. What the command you have provided is trying to do is add a line to your .bash_profile and then source it. The .bash_profile is a text file stored in your home directory that is sourced (read) every time bash (your shell) starts. The mistake in the line you've provided is that only the first letter of PATH is capitalised. To your shell Path and PATH are very different things.
To fix it you want:
echo "export PATH=/usr/local/bin:$PATH" >> ~/.bash_profile && source ~/.bash_profile
To explain
echo "export PATH=/usr/local/bin:$PATH"
simply prints or echoes what follows to stdout, which in the above instance is the terminal. (stdout, stderr and stdin are very important concepts on UNIX systems but rather off topic) Running this command produces the result:
export PATH=/usr/local/bin:/opt/local/sbin:/opt/local/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin
on my system because using $PATH within double quotes means bash will substitute it with its value. >> is then used to redirect stdout to the end of the ~/.bash_profile file. ~ is shorthand for your home directory. (NB be very careful as > will redirect to the file and overwrite it rather than appending.)
&& means run the next command is the previous is successful and
source ~/.bash_profile
simply carries out the actions contained in that file.
As per the latest documentation, you need to do this:
echo 'eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"' >> /home/dhruv/.bashrc
eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
Now you should be able to run brew from anywhere.
When you type in a program somewhere and click enter, it checks certain locations to see if that program exists there.
Linux brew uses locations different from the normal linux programs, so we are adding these locations to the ~/.profile file which sets the paths.
Run this in your terminal, and it will place the correct code in the .profile file, automatically.
echo "eval \$($(brew --prefix)/bin/brew shellenv)" >>~/.profile
Don't use .bash_profile because when you use something different from bash, like zsh, it may not work. .profile is the correct location.
I have installed several times the package GI-1.9.4-preview20140611.exe on my Windows 8. When I try to open the git bash command window, the window opens, but it is empty, no showing the usual welcome message and the git prompt.
I have tried changing the command for the sh.exe file, which usually has the format
"sh.exe --login -i" into just "sh.exe". The shell opens then, the PS1 variable shows only the sh.exe file name and version, nothing more. Is there something wrong with my installation?
Thanks!
Your installation is fine.
The git executable(sh.exe) for Command Line Tool is a script that in order to work will be based on the your windows Command Prompt (cmd.exe)
You will need the following string to refer to Git correctly as an executable:
C:\Windows\SysWOW64\cmd.exe /c ""C:\Program Files (x86)\Git\bin\sh.exe" --login -i"
Or you can always 'right-click' and SELECT 'Git Bash Here' or 'Git GUI Here'
My default login shell is bash. From a few online forums, I configured my terminal to auto load my .bashrc file whenever I open the terminal by adding:
source ~/.bashrc in .bash_profile OR
by adding the following code snippet in .profile:
if [ -n "$BASH_VERSION" ]; then
if [ -f "$HOME/.bashrc" ]; then
. "$HOME/.bashrc"
fi
fi
With either of the two, my .bashrc loads automatically, but with this I am unable to see the process status using ps command.
Note: If I disable the auto loading of my .bashrc and manually load it by typing bash, I am still able to see process status using the ps command.
Please help me out.
You can see what ps is mapped to by typing type ps. Compare before and after the source and you should be able to re-alias it what you're expecting.
I've been developing with rails for a year now, and although rails is pretty well automated, I'd like to take it one step further.
Every time i start working on a project, i open the terminal, cd to a project folder, than new tab in the terminal, then start the server with "rails s" then back to the first tab to run "sublime ." so that i load the folder in my text editor, Sublime Text.
What i would like is to create a .sh script that would do all that for me, but so far i haven't been able to make it start the server.
So, how to start rails server with a .sh script in a directory of choice?
#Manolo gave me an idea, so I've come up with this:
I modified my .bashrc as the following answer illustrates:
https://superuser.com/a/198022
Basically i added
eval "$BASH_POST_RC"
At the end of my .bashrc so i could run arbitrary commands after it was executed.
Next, i made a following script:
#launch_project.sh
#/bin/bash
cd <PROJECT DIR GOES HERE>;
firefox -P "development";
sublime . &;
gnome-terminal \
--tab --title="Server" -e 'bash -c "export BASH_POST_RC=\"rails s\";exec bash"' \
--tab -e 'bash -c "export BASH_POST_RC=\"git s\"; exec bash"';
That launches my development profile on firefox, my editor with a project root, and terminal window with two tabs - one that runs a WEBrick server, and another one which runs git status for me.
I made a desktop shortcut to the script so i have my own custom IDE of sorts :)
Try this:
#!/bin/sh
cd your_project_folder
nohup rails s > /tmp/rails_server.log 2>&1 &
sublime .
you can see the ouput of your rails server at the /tmp/rails_server.log file