I am trying to install sqlplus on my mac following the tutorial here: https://tomeuwork.wordpress.com/2014/05/12/how-to-install-oracle-sqlplus-and-oracle-client-in-mac-os/comment-page-1/#comment-6
I have downloaded the two packages (basic and sqlplus) and created all the directories as it says, I moved the necessary files inside the directories.
I created and copied the tnsnames.ora file with the contents:
MYDB=
(DESCRIPTION=
(ADDRESS=
(PROTOCOL=TCP)
(HOST=*********)
(PORT=1521)
)
(CONNECT_DATA=
(SERVER=dedicated)
(SID=MYDB-SID)
) )
And i created the .bash_profile as it says in the tutorial.
But what im stuck on is making the sqlplus run.
typing in sqlplus returns command not found.
in the tutorial it says i should use $ sqlplus username/password#database
where do i get the username and database name from?, I haven't created one yet.
Thanks in advance.
According to your article, you should do the following:
$ vi ~/.bash_profile
Add the following line to the end of the file.
alias sqlplus=’rlwrap sqlplus’
Now reload the .bash_profile:
$ source ~/.bash_profile
Looks like you missed these steps.
You can try to execute:
$rlwrap sqlplus
According to the comments below you do not have sqlplus in the $PATH.
The value of $PATH looks wrong to me: duplicates, quotes.
Option 1
Execute:
export PATH=/Applications/oracle/product/instantclient_64/11.2.0.4.0/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
Then execute in the same console:
$ sqlplus (or $ rlwrap sqlplus)
It will set value only for the current shell. The main idea is to have full path to the sqlplus binary in the $PATH.
Option 2
Modify ~/.bash_profile.
To save as a permanent environment variable edit ~/.bash_profile. There are some details about setting PATH in the source article.
Top down troubleshooting approach
Look for binary - use type
[bbrandt] ~/ $ type sqlplus
sqlplus is aliased to `rlwrap sqlplus'
Where is my binary.. hidden behind an alias, let's unalias
[bbrandt] ~/ $ unalias sqlplus
[bbrandt] ~/ $ type sqlplus
sqlplus is /u01/app/oracle/product/11.2.0/xe/bin/sqlplus
Found it! What happens if I modify my binary search-path?
[bbrandt] ~/ $ echo $PATH
/u01/app/oracle/product/11.2.0/xe/bin:/home/bbrandt/bin:/usr/lib64/ccache:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin
[bbrandt] ~/ $ export PATH=/home/bbrandt/bin:/usr/lib64/ccache:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin
Now, where is my binary?
[bbrandt] ~/ $ type sqlplus
bash: type: sqlplus: not found
[bbrandt] ~/ $
This is where you are... look in your $PATH variable
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=$PATH:/path/to/the/script
then you an run it from anywhere
I'm trying to create a bash script to change the titles of my terminal windows so I can identify what they are doing. I spent a few hours on this and cant figure it out. The idea is to be able to execute settitle NewTitle. Thank you.
This is my echo:$PATH. It looks like Users/klik/bin is there twice. Maybe that is the issue?
~ klik echo $PATH
/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/Users/klik/bin:/Users/klik/bin
This is the script which was created in textedit in plain text format.
#!/bin/bash
# settitle: set the Mac Terminal title
# usage: to set the titlebar to 'PLAY', type: settitle PLAY
echo -e "\033]0;${1}\007\c"
This is my bash_profile and bin file.
if [ -f ~/.bashrc ]; then
source ~/.bashrc
fi
export PATH=$PATH:$HOME/bin
alias desk='cd ~/Desktop/'
alias down='cd ~/Downloads/'
alias github='cd ~/github/'
This is my ls -a output
Current directories
~ klik ls -l $HOME/bin | pbcopy
total 8
-rwx--x--x# 1 klik staff 147 Mar 9 21:39 settitle.sh
Try this:
echo -e "\033]0;FreddyFrog\007\c"
You need to use -e to turn on interpretation of escape characters. You can also use printf.
printf '\033]0;%s\007\015' "Hippo Croco Horror Pig"
This issue above was that the file was saved with .txt extension. I dont know why this was the case given the ls command showed a .sh ext. At any rate, this is the process I used for creating this script and and executing it.
Open Finder -> Applications->TextEdit in Mac.
Select New Document at bottom left.
From menu select Format -> Make Plain Text
Paste in this code:
#!/bin/sh
# settitle: set the Mac Terminal title
# usage: to set the titlebar to 'PLAY', type: settitle PLAY
echo "\033]0;${1}\007\c"
Thanks to Alvin Alexander for the code.
Still in TextEdit select menu File -> Save
Uncheck "If no extension is provided, use ".txt" "
When I chose my file name I saved it with no extension so i could just type the command settitle NewTitle without having to type the extension every time.
Note the folder the file is being saved to. It defaults to desktop on my machine.
Open Finder -> Go -> Go to Folder
Type in the path to your User Bin folder: mine was /Users/klik/bin
You can check to see if you have a User/bin folder by running: ls -l from your home directory.
If you don't have a bin folder in this directory you can create one by going to your $HOME directory and executing:
mkdir bin
To find out what is your home directory see this
You can then open the directory by executing:
open bin
This will open the folder in Finder.
Drag the script file you created into this folder.
Make sure the script is executable by executing the following command from the folder the file is in or by including the path to the file in name of file:
chmod +x <name of file>
Make sure that the script is in your executable $PATH by executing:
echo $PATH
You will get something like this:
/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/Users/<you>/bin
If you dont see the path of your script, ie /Users/''/bin, then the script file is not in your executable path and you need to put it in your .bash_profile. Execute ls -l to see if you have a .bash_profile file.
ls -l
If you don't have one, make sure your are in your $HOME directory then create one by executing:
mkdir .bash_profile
Open your .bash_profile file in your default editor:
open .bash_profile
Or open with nano (to save and close nano see this link):
nano .bash_profile
Add the following line to the .bash_profile then save/close:
export PATH=$PATH:$HOME/bin
Exit the terminal to reset by executing:
exit
Open the terminal then type:
settitle <whateveryouwant>
I hope this saves someone some time. Thanks to Mark Setchell for his constructive help.
What does this mean?
--- ~ » $PATH
zsh: no such file or directory: /Users/Reed/.rvm/gems/ruby-2.2.1/bin:/Users/Reed/.rvm/gems/ruby-2.2.1#global/bin:/Users/Reed/.rvm/rubies/ruby-2.2.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/sbin:~/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/Reed/.rvm/bin:/Users/Reed/.rvm/bin:/usr/local/bin:/usr/local/sbin:~/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/Reed/.rvm/bin
What is wrong? I think zsh is working?
zsh is operating just fine. $PATH is a variable and when you type $PATH it is the same as typing what $PATH is equal to. In your case $PATH equals:
/Users/Reed/.rvm/gems/ruby-2.2.1/bin:/Users/Reed/.rvm/gems/ruby-2.2.1#global/bin:/Users/Reed/.rvm/rubies/ruby-2.2.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/sbin:~/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/Reed/.rvm/bin:/Users/Reed/.rvm/bin:/usr/local/bin:/usr/local/sbin:~/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/Reed/.rvm/bin
The $PATH variable is great! It contains multiple directories separated by colons. This is used by your shell to let you run commands nicely without having to use the full path all the time.
So, when you typed --- ~ » $PATH you are really just typing ALL of these directories with colons in between.
And - as you may have guessed - this is not a command that your shell recognizes, so your shell responds with: zsh: no such file or directory:
bash does the same thing!
I just installed Home-brew and now I'm trying to insert the home-brew directory at the top of my path environment variable by typing in two commands inside my terminal. My questions are these:
What is a path environment variable?
Are the two codes provided me correct?
echo "export Path=/usr/local/bin:$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 pig in my system by using following steps -
first i have downloaded pig-0.14.0.tar.gz
then i have extracted
tar xvzf /home/impadmin/Downloads/pig-0.14.0.tar.gz
sudo mv pig-0.14.0 /usr/local/pig
sudo chown -R hduser:hadoop pig
nano ~/.bashrc
then added the following lines in bashrc file
# PIG binary paths
export PIG_INSTALL="/usr/local/pig"
export PATH="${PATH}:${PIG_INSTALL}/bin"
touch ~/.pigbootup
nano /usr/local/pig/conf/pig.properties
then added the following code in pig.properties
pig.logfile=/home/hduser/hadoop/pig/logs/
after insatllation when i am executing pig version command
then its giving me error -
Cannot locate pig-core-h1.jar. do 'ant jar', and try again
there is a jar file named pig-0.14.0-core-h1.jar so i copied the same file and renamed it as pig-core-h1.jar but still its giving me the same error .
have i done anything wrong during installation?
~/.bashrc should look like this
# PIG binary paths
export PIG_INSTALL="/usr/local/pig"
export PATH="$PATH:$PIG_INSTALL/bin"
No need for the curly brackets
additionally you need to (this or reboot the machine):
$source ~/.bashrc