no console commands works from nowhere

jag1 · 11-12-2019, 06:04 PM

I wanted to install react native + android studio so i followed this guide on how to do that.
https://shift.infinite.red/painless-...x-39e2e4d58d89

Then from nowhere all these commands stopped working

npm list -g | head -n 1

bash: head: command not found
bash: npm: command not found

bash: apt-get: command not found
bash: sudo: command not found

bash: ls: command not found

how do i fix this?

Firerat · 11-12-2019, 08:20 PM

pro tip blogs are usually poor quality

but seriously, your problems appear to be related to PATH

what do you get from

Code:

echo $PATH

does it contain /usr/bin:/bin ?

my guess is no
something must have gone wrong with the ~/.bash_profile and/or ~/.bashrc edits

first lets fix the PATH

Code:

PATH="/usr/bin:/bin:$PATH"

that "guide" seems to be a bit broken

Pro Tip: a keyboard typically contains three or more locks

one part

Code:

export JAVA_HOME="$HOME/jdk1.8.0_181" // Or your version of the jdk
export PATH=$PATH: "$JAVA_HOME/bin"
export ANDROID_HOME=$HOME/Android/Sdk export
PATH=$PATH:$ANDROID_HOME/tools export
PATH=$PATH:$ANDROID_HOME/tools/bin export
PATH=$PATH:$ANDROID_HOME/platform-tools export
PATH=$PATH:$ANDROID_HOME/emulator


#

the exports at the end of the lines *should* be at the start of the next line
( like the first 3 lines )

Pro Tip: water is wet

also , I don't like the look of

Code:

export PATH=$PATH: "$JAVA_HOME/bin"

there should be no space between : and "

Code:

export PATH=$PATH:"$JAVA_HOME/bin"

but I don't see how any of those would break the PATH, so I guess some typo crept it
maybe a missing $PATH or just a $
will know more once I see the output of that echo

EDIT:
it also asks you to edit /.bash_profile
I suspect that should be ~/.bash_profile
~ is shorthand for $HOME

ondoho · 11-13-2019, 01:58 AM

Quote:

Originally Posted by Firerat

but I don't see how any of those would break the PATH

I can see how that last one could break PATH.

Firerat · 11-13-2019, 02:19 AM

Quote:

Originally Posted by ondoho

I can see how that last one could break PATH.

I don't see how it would break PATH
it would be a bit screwy
tagging : on the end effectively adds the Working Directory to PATH
some people do that on purpose ( too lazy to type ./ )

ondoho · 11-14-2019, 12:56 AM

Quote:

Originally Posted by Firerat

tagging : on the end effectively adds the Working Directory to PATH
some people do that on purpose ( too lazy to type ./ )

Not on my system (bash 5.0.11):

Code:

$ export PATH=$PATH: "$JAVA_HOME/bin"
bash: export: `/bin': not a valid identifier
$ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/jvm/default/bin:

and I was not in /usr/lib/jvm/default/bin when I did this.

Yes, that random blog post seems to contain many outright errors.

Firerat · 11-14-2019, 01:33 AM

Quote:

Originally Posted by ondoho

Not on my system (bash 5.0.11):

Code:

$ export PATH=$PATH: "$JAVA_HOME/bin"
bash: export: `/bin': not a valid identifier
$ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/jvm/default/bin:

and I was not in /usr/lib/jvm/default/bin when I did this.

Yes, that random blog post seems to contain many outright errors.

: got tagged on the end

now make some script, make exec. and see if you can run it without ./

jag1 · 11-16-2019, 07:59 AM

Thanks for the reply guys.

echo $PATH gives me usr/local/lib

it probably broke when i was editing .bashrc i think but now I can not even find it in the UI. All i find is
bash.bashrc - etc
dot.bashrc - usr/share/base-files
bash.bashrc - usr/share/doc/adduser/examples ... ...
dot.bashrc - usr/share/docadduser/examples ... ...

I am so very new with linux so I have no idea what I am doing

Firerat · 11-16-2019, 08:13 AM

bash is in the root of your home dir
~/.bashrc

files that begin with a . are "hidden"

if you are using gui you may need to configure the file manager to show hidden files
( I would have to research it, I don't use GUI file managers )

on the command line

Code:

nano ~/.bashrc

nano is a basic text editor

I won't expose you to vim just yet

you can launch a GUI text editor from the command line
I don't know what distro/DE you are using, so I can only guess.

gedit might be available ( I don't use GUI text editors either

)

ondoho · 11-17-2019, 01:56 AM

Quote:

Originally Posted by jag1

echo $PATH gives me usr/local/lib

You have to show us the full output.
And use CODE tags for output (see my signature).