ZSH: Command not found - after update macOS to 10.15.1 - bash

Yesterday I was using all my installed packages without any problem such as mysql, composer, php, brew and co...
However, today I started my MacBook and typed mysql and I got: zsh: command not found: mysql. Not even brew is working anymore and I don't know why.. this is my .zshrc config file and I don't know why it isn't working.
# If you come from bash you might have to change your $PATH.
export PATH=$HOME/bin:/usr/local/bin:~/.composer/vendor/bin:$PATH
Any ideas how to fix this?

Yuck, how did that happen? Try this:
PATH=/bin:/usr/bin:/usr/local/bin:$PATH
export PATH
Whether this works is going to depend on where you have been installing user executables. If you're using homebrew, I would expect it to be /usr/local/bin but perhaps it is something different in your case? You might want to try putting /usr/local/bin first so things installed by homebrew get picked up before the defaults in /usr/bin and /bin (this is what I do, and I'm still alive to talk about it...)
You could also change your default shell back to Bash:
brew install bash
echo '/usr/local/bin/bash' >> /etc/shells
chsh
You might need to use sudo on line 2.

Related

How to fix Mac terminal being incredibly slow after brew install tmux

I've installed tmux using brew ( arch -x86_64 brew install tmux ) on M1 Mac and since then my terminal is super slow. on lunch, after running commands and it's just incredibly slow.
I tried deleting the package using
brew uninstall pkg
it didn't work. I tried using the following commands as well.
brew remove pkg
brew rmtree tmux
I get "Error: tmux is not currently installed" since I've already uninstalled it..
and when using
sudo find / -name "*tmux*"
I still get many files including tmux.
GIFs showing the situation
any ideas/help on how to solve this?
Ok I have fixed it.
although I didn't know exactly what was the problem but it was something related to oh-my-zsh and to be more specific it was with the current oh-my-zsh theme powerlevel9k after installing tmux.
here is the steps I toke: I tried to change my shell to bin/bash it worked great. Tried a couple more shells and all worked great except zsh. then I tried to change the .oh-my-zsh directory name just for testing purposes and opened zsh, it worked great but of course without oh-my-zsh.
so I went to .zshrc and commented this line.
#ZSH_THEME="powerlevel9k/powerlevel9k"
obviously installing tmux messed things up so I'll need to reinstall the theme or oh-my-zsh all over again.

I accidentally delete zsh from /bin folder in Mac

I delete the zsh binary from bin folder , so when i try to change my shell i get this :
chsh: WARNING: shell '/bin/zsh' does not exist
I don't know how to reinstall zsh shell and MacOs come with zsh by default.
The easiest thing would be to install zsh using brew (which will install it in /usr/local/bin/zsh) and then symlink it to /bin/zsh.
There are obvious more ways to fix this, but this seems (to me) to be the simplest.
I fixed that problem using mac tools. I invested only about 30 min of my time whith the reinstall option. It's obviously there is a way to generate a zsh binary, but I find easy reinstall the osx due to Osx come by default with the zsh binary and brew install doesn't install the zsh binary. On the other hand, there must a way to install zsh from scratch but I think find the correct way would take more time

How to put psql on the path when using Postgres.app on OS X?

I've installed Postgres93 on my Mac. I can open the application, and "Open psql" through the app which opens up a command line interface with psql.
However, when I type $ which psql nothing is returned. The installation path is /Applications/Postgres93.app. How do I make $ which psql show the correct result?
Mac OS X - Mavericks
PostgreSQL package, I'm not as sure about. I went here and downloaded it - http://postgresapp.com/
I just had postgres installed and was not able to run the psql command until I ran the following command in my terminal:
export PATH="/Applications/Postgres.app/Contents/Versions/9.5/bin:$PATH"
Now the terminal knows where to find postgres when I use the psql command.
Remember to replace the version number '9.5' with your current version.
I had the same problem with nothing showing for the which psql command till I run the command below to resolve it. The command provided below is just a little tweak of what has already been provided by others here. The only difference is, instead of providing a specific postgres version number in the command, you can simply tell postgres to use the latest postgres version by simply running the following command:
export
PATH="/Applications/Postgres.app/Contents/Versions/latest/bin:$PATH"
And now my terminal was able to find the path to postgres when I run which psql.
Hope this helps.
On macOS Mojave these instructions work well:
If your Postgres has not been installed yet, I suggest you use the great "brew" package manager from here https://brew.sh/ :
$ brew cask install postgres
or you can install it usual way from the website
Put this to the bottom of your ~/.bash_profile file:
export PATH="/Applications/Postgres.app/Contents/Versions/latest/bin:${PATH}"
Restart your terminal or restart your ~/.bash_profile directly with the command:
$ . ~/.bash_profile
Verify your installation:
$ psql --version
** Edited: to include a permanent fix, not just during your current session. **
I had this same problem, and also found a clear answer lacking in the docs.
To fix:
Download the new app, and follow the instructions to move it to the Applications folder
Add the new bundle to your path by typing the following in your Terminal (version number specific - mine is 9.4):
PATH="/Applications/Postgres.app/Contents/Versions/9.4/bin:$PATH"
To fix the issue on a permanent basis, run the same line but with export in front:
export PATH="/Applications/Postgres.app/Contents/Versions/9.4/bin:$PATH"
It appears that you installed Heroku's Postgres.app, which is a tool intended for throw-away testing and development. Add the contents of the bundle to your PATH by following the instructions in the Postgres.app documentation - see "command line tools".
On macos mojave i've added the following line on my ~/.profile :
export PATH=$PATH:/Library/PostgreSQL/10/bin
the psql command line client lies into this folder. i've used the enterprisedb installer.
I just experienced the same problem, and solved it by adding export PATH=$PATH:/Applications/Postgres.app/Contents/Versions/9.4/bin to .bash_profile. Note that this line is version-specific, so be sure to check this line against your current version of Postgres.app.
Using Mac OS Monterey, the latest Homebrew (3.4.0) and postgres#13.
I was able to add psql to the path by using -
export PATH="/opt/homebrew/Cellar/postgresql#13/13.6/bin:$PATH"
Replace #13 and 13.6 with your version.
The latest homebrew install location seems to be /opt/homebrew/*
I'm using catalina 10.15.3 and I had the same issue after installing psql using homebrew. Then I noticed, homebrew mentioned
==> libpq
libpq is keg-only, which means it was not symlinked into /usr/local,
because conflicts with postgres formula.
If you need to have libpq first in your PATH run:
echo 'export PATH="/usr/local/opt/libpq/bin:$PATH"' >> ~/.bash_profile
So, I ran 'export PATH="/usr/local/opt/libpq/bin:$PATH"' >> ~/.bash_profile and psql was added to my path
In Mac, there is a SQL Shell application already under /Applications/PostgresSQL
try that
Also, you can run /Library/PostgreSQL/11/scripts/runpsql.sh
In my case, I installed Postgres12 and had the same issue. I had to look out for the location of my bin folder. It happened to be in /Applications/2ndQuadrant/PostgreSQL/12/bin. So I had to run export PATH="/Applications/2ndQuadrant/PostgreSQL/12/bin:$PATH" in my terminal and restart the terminal. That solved it.

MongoDB installed via Homebrew not working

I installed MongoDB via Homebrew (following http://docs.mongodb.org/manual/tutorial/install-mongodb-on-os-x/) but it's not working.
Typing mongod at shell prompt gives me:
-bash: mongod: command not found
Not sure if I need to add something for Homebrew to my PATH env var?
I can see Mongo is installed under /usr/local/Cellar/mongodb – but am assuming I don't need to add everything I install via homebrew to the path? Also, assuming I can run mongod from any directory or am I actually meant to be in install directory?
When I run brew doctor I get:
Warning: You have unlinked kegs in your Cellar
Followed by a list of 3 items which includes MongoDB – but I'm not sure how I'm meant to link them?
Works perfectly
brew update
brew tap mongodb/brew
brew install mongodb-community#4.2
For latest version, check https://docs.mongodb.com/manual/release-notes/
You're getting this error because your 'brew' install failed to create the correct symlinks in /usr/local/bin. As a result, the shell can't find the mongo executables in your $PATH. You can fix this using the following steps:
Check the permissions on /usr/local/bin and make sure that you own that directory and have write permissions on it
$ ls -ld /usr/local/bin
Once you've fixed that, run 'brew link' to fix the symlinks
$ brew link mongodb
If you are on mongodb-community#4.0. You can try to reinstall with brew reinstall mongodb-community#4.0.
Then I get the following hint:
==> Caveats
mongodb-community#4.0 is keg-only, which means it was not symlinked into /usr/local,
because this is an alternate version of another formula.
If you need to have mongodb-community#4.0 first in your PATH run:
echo 'export PATH="/usr/local/opt/mongodb-community#4.0/bin:$PATH"' >> ~/.bash_profile
So you can just copy the echo command and restart your shell!
Copied from a different channel running these commands in the terminal updated the installation/configuration issues as described in OP
brew tap mongodb/brew
brew install mongodb-community
brew services start mongodb-community
I faced the same problem and this solution seemed to work for me. I had previously uninstalled mongodb and reinstalled it through homebrew which gave me a bunch of problems. This solution seemed to work just fine.
brew uninstall --force mongodb
brew cleanup -s mongodb
brew cleanup --prune-prefix
brew install mongodb
It works from the directory since the sh searches the ENV path and then the cwd for a program named mongod. I have been looking around a little and it seems that the default install of MongoDB (I am not a Mac user) does not install a rc or init script for which sh to understand it's running behaviour as stated here:
http://docs.mongodb.org/manual/tutorial/install-mongodb-on-os-x/#using-mongodb-from-homebrew-and-macports
The packages installed with Homebrew and MacPorts contain no control
scripts or interaction with the system’s process manager.
If you have configured Homebrew and MacPorts correctly, including
setting your PATH, the MongoDB applications and utilities will be
accessible from the system shell. Start the mongod process in a
terminal (for testing or development) or using a process management
tool.
So you must actually define (as you said) MongoDBs path, here is an example: https://snipt.net/sido/installing-mongodb-on-os-x/
Edit: the example is not mine. I just stole it from it's user: https://snipt.net/sido/

Ruby Version Manager broke my $PATH

I installed RVM on OSX and now my $PATH variable is totally changed. I tried to change it in .bashrc and .profile but it doesn't seem to have any effect. Any ideas what I'm doing wrong?
It looks like you have some misuse in your RC files, have a read here: https://rvm.io/support/faq/#shell_login
basically .profile should not be used as bash login RC script, there is .bash_login or .bash_profile which are better choice for it.
to fix your profile files you need to run:
rvm get stable --auto-dotfiles
and restart computer - yes restart the machine, it's only a minute on mac
I ran into this problem when I had an rvm binary in /opt/local/bin (a macport called 'rsync vault manager'). After uninstalling that, rvm stopped removing /opt/local/bin from my path.

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