Swift on Ubuntu 20.04- Need to add a path every time - swift

I am simply trying to install swift on linux
I have downloaded the files from swift.org, extracted .tar files and used export command to include the path after that when I use swift --version it correctly shows the version 5.3.3 but when I close the terminal and try to open the swift command terminal it says command not found.
What is happening here? I need to include the path every time I open the terminal.

The export command just adds the value to path for the current session. When you log out and in again, it will reset.
You need to add this to your shell resource file so that it gets added to the path every time you log in. The file you need to edit will be called .zshrc or .bash_profile or something similar. You should start by opening the command line on your computer and verifying what shell you are running by typing:
echo $SHELL
This will return something like /bin/ksh or /bin/bash or similar. Then do a little internet searching to find out what the resource file is called for that shell. Then edit your resource file to add the Swift path to your $PATH.

Related

Flutter commands not working in the Terminal

I have downloaded flutter and completed my setup am sure its good as I have checked it 5 times and put the correct file path export PATH="$PATH:/Users/KingKimani/Developer/flutter/bin". but I can't run flutter doctor or any flutter command why?
I am currently using the MAC M1 chip.
If you are using zsh do the following.
Open .zshrc file nano $HOME/.zshrc
You will see the commented $PATH variable here
# If you come from bash you might have to change your $PATH.
# export PATH=$HOME/bin:/usr/local/...
Remove the comment symbol(#) and append your new path using a separator(:) like this.
export PATH=$HOME/bin:/usr/local/bin:/Users/KingKimani/Developer/flutter/bin:$PATH
Activate the change
source $HOME/.zshrc
You're done !!!
After setting the correct path on the system.
System terminal needs to have latest environment configurations.
Restart/Reload terminal required.
If you are using zsh shell & have save path on .zshrc file.
below command will reload configurations
source ~/.zshrc
Reference

Set Permanent Flutter Path

The steps for modifying this variable permanently for all terminal sessions are machine-specific. Typically you add a line to a file that is executed whenever you open a new window. For example:
Determine the directory where you placed the Flutter SDK. You will need this in Step 3.
Open (or create) $HOME/.bash_profile. The file path and filename might be different on your machine.
Add the following line and change [PATH_TO_FLUTTER_GIT_DIRECTORY] to be the path where you cloned Flutter’s git repo:
$ export PATH="$PATH:[PATH_TO_FLUTTER_GIT_DIRECTORY]/flutter/bin"
Run source $HOME/.bash_profile to refresh the current window.
Verify that the flutter/bin directory is now in your PATH by running:
echo $PATH
In mac, you should add it as follows in ".zshrc":
export PATH="$PATH:/Users/matteo/Documents/flutter/bin"
After you have updated the ".zshrc" file, run this command to ensure changes have been notified to OS
source ~/.zshrc
Reference: https://flutter.dev/docs/get-started/install/macos
A similar concept is for Linux system using bash files
I tried a lot of methods but this one permanent solution worked for me like a charm:
open Terminal in your Mac: type:
sudo nano /echo/paths
Add the code to the file:
/users/yourUserName/flutter/bin
Save the file using Control+X and Press Y and Enter
Hope this helps! :)

Can't put MongoDB in my PATH

I'm trying to include MongoDB in my PATH on Ubuntu 14.04 by issuing this command:
export PATH=/home/<my-user-name>/mongodb-linux-x86_64-ubuntu1404-3.2.4/bin:$PATH
It seems OK but when I restart the terminal it can't find it again. Do you have any idea what's going on?
export commands only work for the current terminal window.
You should add this command to one of the files that run when you start your terminal session.
Your best choice would be to add this line to a file called ~/.profile, since it will run regardless of the shell you are using.

Script in PATH Mac OSX terminal not working

I have the following script in my /path/to/startupscripts directory, so I can open the emacs GUI with the command 'emacs':
#!/bin/sh
/Applications/Emacs.app/Contents/MacOS/Emacs "$#"
I edited my ~/.bash_profile and added the following line
export PATH=/path/to/startupscripts/emacs:$PATH
However, the script is not working because when I type in 'emacs' into the command line emacs still opens within terminal and not the GUI like I want. Also, when I am in the /path/to/startupscripts directory and I can execute and run the script with
chmod +x emacs
./emacs
but even when I type 'emacs' afterwards it still opens within terminal. I am a bit of a beginner, and I think I am missing something painfully obvious.
The PATH should contain a directory name where your script(s) can be found, not the name of your individual script.
You probably need to source your .bash_profile:
source ~/.bash_profile
No changes made in your profile will be applied unless you source the profile or log out and back in.
Aside from that every looks like it should work.
However you may want to consider just using an alias instead of a script for this. This can be done by adding this to your profile:
alias emacs=/Applications/Emacs.app/Contents/MacOS/Emacs
That's probably a cleaner way to get the functionality you want without adding more to your PATH variable.
I hope that helps! [insert obligatory comment about how you should be using vim and not emacs :P]

How to add mongo commands to PATH on Mac OSX

I'm using MongoDb 2.6.1 following the material from https://university.mongodb.com/ (great material by the way) but I am not being able to add to my path the mongo commands.
I've followed this guide http://docs.mongodb.org/manual/tutorial/install-mongodb-on-os-x/ and I modified my .bashrc like this
export PATH=/Users/jonathancaballero/bin/mongodb/mongodb_2.6.1/bin:$PATH
And there is indeed where the binaries are (checked using the finder directly)
So my question is why I am not able to use mongod from any location in my terminal?
Please put the PATH export into .bash_profile:
export PATH=/path/to/your/mongo/bin:$PATH
Edit: The reason to put it into .bash_profile is that this file will usually get executed when bash is started as a login shell while .bashrc usually is exectuted for interactive non-login-shells. What usually happens is that .bashrc gets sourced in .bash_profile. This does not seem to be the case here. On MacOS X when you start a Terminal, .bashrc does not get executed. God knows why, as the shell opened should be an interactive non-login shell and therefor should execute .bashrc.
Another, albeit more "intrusive" solution would be to add the following to .bash_profile.
if [ -f ~/.bashrc ]; then
source ~/.bashrc
fi
For those who are interested in the details: take a look into the according sections of bash's manpage