Trying to set up bash command - path

I was trying to set up a bash command in Terminal on a Mac.
The scripts run correctly when I execute them directly.
I set up symlinks in /usr/local/bin/ to the current location of the scripts. When I try to run it off the symlink, it doesn't work. I don't believe the issue is the $PATH, because pip, git, ipython all exist in this location. When I edit the $PATH setting, these fail.
Suggestions?

ls -l /usr/local/bin/foo and see where your symlink is actually pointing. Betcha it's broken.
If not, try running /usr/local/bin/foo. If that works, it was your PATH that's wrong, despite what you said in the OP.
The only other thing that would cause this behavior is if the script is reading $0 (its own name as executed). With a symlink, that will have a different value.

I found my own answer... The symlinks were created by an automated file which was gabbing my pwd. I was also using virtualenv, so to get it to work, I had to activate the virtualenv and be inside the folder that had the script that created the symlinks.

I install my commands in $HOME/bin instead of /usr/local/bin, but it does not matter much. As hinted in the comments, one question is whether the symlinks are set correctly.
Check which command the shell thinks you should execute: which command
Check that the link in /usr/local/bin points to the correct file (and has execute permission, etc):
ls -l /usr/local/bin/command
ls -lL /usr/local/bin/command
Check that the interpreter path in the shebang is correct:
file /usr/local/bin/command
Check that /usr/local/bin is actually on your PATH: echo $PATH
If none of that shows up a problem, show us the results of the commands above.

Related

nix-env and nix-build not found after installation (debian buster)

after the installation following the instructions with
curl https://nixos.org/nix/install | sh
and logout/login, nix-env and nix-build are not found.
I had the problem with debian stretch and now with buster. What am I doing wrong?
The nix manual instructs to execute
source ~/.nix-profile/etc/profile.d/nix.sh
but the instructions printed after the execution say to do (I do not remember exactly)
./~/.nix-profile/etc/profile.d/nix.sh
and the same command is inserted into ~/.profile. The cause of the problem is the difference between . and source (see this superuser question). The script is setting up the $PATH variable in the environment and has the desired effect wtih source but no effect with . (which operates in its own shell and closes it at the end).
Cure:
change the line in .profile (or better move it to .bashrc) to
if [ -e /home/xxx/.nix-profile/etc/profile.d/nix.sh ]; then source /home/xxx/.nix-profile/etc/profile.d/nix.sh; fi
(xxx is your user name),
You need to add this recommended script.
For me only setting $PATH like this worked (in .profile)
export PATH="$PATH:/nix/var/nix/profiles/default/bin"

where the $PATH is created in ubuntu (16.04) and how to change it

when checking my $PATH on ubuntu (16.04)
I get a long list of directories, few of which even do not exist in my file
system, and some of them I just don't need:
echo $PATH
.../usr/games:/usr/local/games:/snap/bin
where they are created and how can I remove them?
I wnant to control the creation of the $PATH, rather than
correct it later by the tricks described in
https://unix.stackexchange.com/questions/108873/removing-a-directory-from-path
Some typical places where $PATH can be set when starting up a bash shell on Ubuntu include:
/etc/profile
~/.profile
~/.bashrc
where ~ represents your home directory.
Also look at any scripts called by those scripts.
There may be other things that get called when starting up a bash shell, depending on various conditions. For details, take a look at the INVOCATION section from the command:
$ man bash
See this answer from askubuntu.com to edit the path either using a text editor or the command line.
I found the answer to your question today. The path you want to edit is in /etc/environment.

Extend $PATH variable in git bash under Windows

I'm trying to extend my $PATH variable in git bash (MinGW shell) by adding the following to the file ~/.bashrc
PATH=$PATH':/c/Program Files/maven/apache-maven-3.2.5/bin'
After I did this and restarted the bash it seems like that the $PATH variable was extended like expected:
$ echo $PATH
MANY_OTHER_PATHS:/c/Program Files/maven/apache-maven-3.2.5/bin
But I still cannot execute the programms in the given directory:
$ mvn
bash: mvn: command not found
What went wrong here? How do I extend the PATH variable correctly?
Here are two ideas.
You can have your path with double quote mark.
export PATH=$PATH:"/C/Program Files (x86)/apache-maven-3.3.3/bin"
Or, You can also make symbolic link for the directory.
ln -s "/C/Program Files (x86)/apache-maven-3.3.3/bin" ./mvnbin
export PATH=$PATH:/your-path/mvnbin
It works for me in mingw32 environment.
I needed to add something to my Git Bash path permanently each time I open it. It was Meld.exe path which can be added with:
export PATH=$PATH:"/C/Program Files (x86)/Meld/lib"
In order to execute this command each bash session, you need a ~/.bashrc file. Check if it already exists or create it using notepad ~/.bashrc or touch ~/.bashrc.
You can check where it is with:
echo ~
Open it and add the command that adds the PATH (first command in this response).
I hope you found this useful.
According to this SO post, you need to escape Program Files with quotes. git-bash $PATH cannot parse windows directory with space
Add PATH in Git Bash Permanently | Windows Only
Just in case you are still wondering how to add a path permanently in git bash here is the step-by-step process for Windows users:
Create .bashrc in user's root folder using the below command. It will open notepad and ask you to create the file, click yes.
notepad ~/.bashrc
Put the directory you want to add as below, for more than 1 items repeat the same format in next line:
export PATH=$PATH:"/c/folder/folder/"
Save the file and relaunch the bash.
Next launch will give you a warning like WARNING: Found ~/.bashrc but no ~/.bash_profile, ~/.bash_login or ~/.profile. but git bash will handle it by creating the required files.
SOME INSIGHTS
Git Bash doesn't fetch Window's environment PATH, it maintains its PATH separately in more like a Linux way.
You can run export PATH=$PATH:"/c/folder/folder/" in cmd to add a directory to path, but it will be only for the current session once you close the bash, it will be gone.
.bashrc is a shell script file that will be executed every time you launch a new git bash window. So you can add any type of bash command here. We simply added the export command to add our desired directory to PATH.

Having trouble running "mate .rspec"

I'm trying to run mate .rspec in my command prompt in order to open the .rspec configuration file. However, I get the error -bash: mate: command not found. Any ideas?
Though Brandon's answer is correct, there's a far simpler way to set up the mate command through TextMate itself.
In the menu bar, select Help > Terminal Usage..., choose /usr/bin from the dropdown, and it will create the link for you.
You might have to open a new Terminal window for it to take effect, but then you should be all set.
[Update]
T.J.'s answer is much better than mine. :)
[Original Answer]
TextMate installs the mate command to /usr/local/bin/mate. First, I would check to see if the mate command is in that directory:
ls -lah /usr/local/bin/mate
If you get ls: /usr/local/bin/mate: No such file or directory, then you can install the mate command by creating a symbolic link to the binary, which lives in the TextMate.app folder:
sudo ln -s /Applications/TextMate.app/Contents/Resources/mate /usr/local/bin/mate
At this point, you should be able to run mate from the command line.
If you got output other than No such file or directory from the ls command, it means that /usr/local/bin is not on your path.

Cygwin make can't find cygwin commands

While trying to install a build server I've run into a funny problem where all cygwin commands can be run from a DOS box but sometimes do not work when called from make. What's even more weird is some make targets, like 'clean', work and others, like 'all', do not.
Here's a representative makefile extract. The quoting has hosed the formatting but tabs are where they should be, trust me:
.PHONY: all
all: update_autoconstants
/usr/bin/rm -f $(OBJ_DIR)/myfile1.txt
rm -f $(OBJ_DIR)/myfile2.txt
.PHONY: clean
clean:
rm -f $(OBJ_DIR)/*.*
Notice that in 'all' one rm call has a full path and one has no path. Also notice that clean's rm call has no path.
To this the response to a 'make -C makefile all' is:
/usr/bin/rm -f ../../obj/myfile1.txt
rm -f ../../obj/myfile2.txt
make: rm: Command not found
make: *** [all] Error 127
ie. the full path works, the no-path does not. What then starts my head spinning is the 'clean' target in make with no path works fine. it's not just cygwin commands, make can't find the compiler either. It seems pretty clear that somewhere the path has been hosed, although the environment variable PATH is set, but only in make - this works fine from a DOS prompt.
C:\>cygpath --unix c:\programme\cygwin\bin\rm
/usr/bin/rm
The machine is running Windows Server 2003 German language in a virtual machine on VMWare ESX, the cygwin install was done yesterday, installed in c:\programme\cygwin\ and everything else is clean vanilla Windows installation.
Any ideas? Thanks in advance.
Not really so much of a solution as a workaround - we made all the makefiles use absolute paths to the exe files they need which is in any case a bit nicer than searching a path and taking what you find.
To perhaps save someone some Googling commands in cygwin's bin directory can best be called:
CYGWIN_EXE_PATH = /usr/bin
RM = $(CYGWIN_EXE_PATH)/rm.exe
.PHONY: clean
clean:
$(RM) -f $(OBJ_DIR)/*.*
And similarly files in the program files directory like this:
COMPILER_DIR = "$(PROGRAMFILES)/TASKING/c563 v3.6r1"
Hope that helps.
I've had the exact same thing.
rm not being found by make from within a makefile.
My workaround was to run the makefile from within bash. Previously I was just running make from a windows cmd box. This cured the problem for me, but created new issues. The permissions of some files that were created during the make had very odd permissions being set.

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