I installed Hadoop and Created a user named hduser and changes owner of hadoop folder to hduser.
After installing Hadoop i try to execute the hadoop command to check whether it is installed or not but it is giving "hadoop" command not found.
Then i had given execute privilege to hduser on all the files inside hadoop folder include bin folder
But still output is same.
When i am trying the same hadoop command with root as a user its working fine.
I think it is related to unix commands. Please help me out to give my user the privilege to execute hadoop command.
One more thing if i switch to root then hadoop commands works fine.
It is not a problem of privileges. You can still execute hadoop, if you type /usr/local/hadoop/bin/hadoop, right?
The problem is that $PATH is user-specific.
You have to add your $HADOOP_HOME/bin to the $PATH, as hduser, not as root. Login as hduser first (or just type su hduser) and then export PATH=$PATH:/$HADOOP_HOME/bin, as #iamkristian suggests, where $HADOOP_HOME is the directory in which you have placed hadoop (usually /usr/local/hadoop).
I sounds like hadoop isn't in your path. You can test that with
which hadoop
If that gives you command not found the you probably just need to add it to your path. Depending on where you installed hadoop, you need to add this to your ~/.bashrc
export PATH=$PATH:/usr/local/hadoop/bin/
And then reopen your terminal
Related
I've installed the Hadoop file and I'm trying to run the MapReduce example in the terminal, but am getting the command not found message, can someone help me with this issue, thanks.
Ismails-MacBook-Pro:mapreduce korir$ hadoop jar hadoop-mapreduce-examples-2.7.3.jar
-bash: hadoop: command not found
The Hadoop command is only recognized from within your hadoop-2.7.3/bin folder. Unless you set the PATH environment variable to include that path.
Execute the command:
export PATH=$PATH:/Users/korir/hadoop-install-hadoop-2.7.3/bin
Consider adding this to a bashrc file to make it permanent.
I followed the Software Collections Quick Start and I now have Python 3.5 installed. How can I make it always enabled in my ~/.bashrc, so that I do not have to enable it manually with scl enable rh-python35 bash?
Use the scl_source feature.
Create a new file in /etc/profile.d/ to enable your collection automatically on start up:
$ cat /etc/profile.d/enablepython35.sh
#!/bin/bash
source scl_source enable python35
See How can I make a Red Hat Software Collection persist after a reboot/logout? for background and details.
This answer would be helpful to those who have limited auth access on the server.
I had a similar problem for python3.5 in HostGator's shared hosting. Python3.5 had to be enabled every single damn time after login. Here are my 10 steps for the resolution:
Enable the python through scl script python_enable_3.5 or scl enable rh-python35 bash.
Verify that it's enabled by executing python3.5 --version. This should give you your python version.
Execute which python3.5 to get its path. In my case, it was /opt/rh/rh-python35/root/usr/bin/python3.5. You can use this path to get the version again (just to verify that this path is working for you.)
Awesome, now please exit out of the current shell of scl.
Now, lets get the version again through this complete python3.5 path /opt/rh/rh-python35/root/usr/bin/python3.5 --version.
It won't give you the version but an error. In my case, it was
/opt/rh/rh-python35/root/usr/bin/python3.5: error while loading shared libraries: libpython3.5m.so.rh-python35-1.0: cannot open shared object file: No such file or directory
As mentioned in Tamas' answer, we gotta find that so file. locate doesn't work in shared hosting and you can't install that too.
Use the following command to find where that file is located:
find /opt/rh/rh-python35 -name "libpython3.5m.so.rh-python35-1.0"
Above command would print the complete path (second line) of the file once located. In my case, output was
find: `/opt/rh/rh-python35/root/root': Permission denied
/opt/rh/rh-python35/root/usr/lib64/libpython3.5m.so.rh-python35-1.0
Here is the complete command for the python3.5 to work in such shared hosting which would give the version,
LD_LIBRARY_PATH=/opt/rh/rh-python35/root/usr/lib64 /opt/rh/rh-python35/root/usr/bin/python3.5 --version
Finally, for shorthand, append the following alias in your ~/.bashrc
alias python351='LD_LIBRARY_PATH=/opt/rh/rh-python35/root/usr/lib64 /opt/rh/rh-python35/root/usr/bin/python3.5'
For verification, reload the .bashrc by source ~/.bashrc and execute python351 --version.
Well, there you go, now whenever you login again, you have got python351 to welcome you.
This is not just limited to python3.5, but can be helpful in case of other scl installed softwares.
When I create a new project and select to create a new Git repository, or when I try to change the version control system in project options I receive a RStudio error stating "Incorrect function" with a big X and no extra information.
The below link has a similar issue, but their solution of changing the path for git.exe has not helped (i have tried all three paths)
https://support.rstudio.com/hc/en-us/community/posts/200632528-Git-Error-Incorrect-Function
Some extra notes:
RStudio allows me to clone repository to set new working directory
Also git works in bash, so i feel this is an RStudio issue.
I encountered the same error. For me it also had to do with using a network path not a local directory for the project location (as for lewis1211).
Workaround: Map the network drive. E.g. Map your //server/share to some drive, say Z: (using map network drive, if you are using windows). If you set your project up under Z: then, it works.
If you have already chosen "git.exe" in RStudio --> Tools --> Global Options --> Git/SVN, then try to open Rstudio shell and type git init. In my case it showed "Permission denied", and after running as administrator the problem has gone.
This is only a partial answer if it fixes your problem: I reproduced this when trying to use a network path for a project location. When using a local directory no error occurs. Could indeed be an RStudio issue.
Run you R studio as Project administration.
This solves my issue.
SOLVED.
I had the same problem. The Git-RStudio-Connection fails but git is working perfectly in the CMD. When running the git init command in CMD it works and creates a .git folder. But running the git init command in the RStudio terminal fails with a message Warning: unable to access 'C:/Users/%username%/.gitconfig': Permission denied ... fatal: unknown error occured while reading the configuration files.
The Version Control Sytem (VCS) or git-Panel does not appear in RStudio and selecting it in the projects options leads to the same message Error: Unzulässige Function (eng. Error: Incorrect function).
A closer look into the .gitconfig file should give you a new solution approach hopefully without having administration rights. Comparing the installation on the integration worksation with a productive workstation shows, that on the Test-Machine an incomplete .gitconfig file is on C:/Users/%username%/.gitconfig and on the Productive-Machine a complete gitconfig file is on Z:/.gitconfig. By the way, Z is a mapped drive which is linking to the company's user-profile settings (see CMD > echo %HOMEDRIVE%).
According to this analysis there should be multiple possible solution approaches:
(1) delete the corrupt .gitconfig and hope the the system is correctly looking into your profiles directory
(2) complete the .gitconfig file that all necessary information are there. The message fatal: unknown error occured while reading the configuration files could actually be a hint, that the first message access... permission denied is false and the problem lies in the incomplete file.
(3) Be aware that there can be a confusion between ".gitconfig" as FILE and ".gitconfig" as FOLDER. Check this with changing directory with cd to folder and cat to show the file content. It will tell you that you cannot display a folder as file-content.
(4) Change the location of the config file with git config --file FullnameToGitconfig. e.g. git config --file %USERPROFILE%/.gitconfig or git config --file %USERPROFILE%/.gitconfig/gitconfig or git config --file %HOMEDRIVE%/.gitconfig etc.
[user]
name = DOE John
email = john.doe#acme.com
[merge]
tool = kdiff3
[mergetool "kdiff3"]
path = C:/Program Files/KDiff3/kdiff3.exe
[diff]
guitool = kdiff3
[difftool "kdiff3"]
path = C:/Program Files/KDiff3/kdiff3.exe
[core]
editor = \"C:/Program Files (x86)/GitExtensions/GitExtensions.exe\" fileeditor
I downloaded Instant Oracle Client Version 11.2.0.4.0(basic, sqlplus, devel .rpm file) by Oracle website in Ubuntu.
After converting .rpm into .deb using alien, I installed it, basic first and sqlplus and last devel.
And then I tried to run sqlplus.
But It is saying sqlplus64: error while loading shared libraries: libsqlplus.so: cannot open shared object file: No such file or directory
Even though my PATH contains the PATH.
The below shows my PATH and the location of libsqlplus.so.
A#ubuntu:~$ sudo find / -name libsqlplus.so
/usr/lib/oracle/11.2/client64/lib/libsqlplus.so
A#ubuntu:~$ echo $PATH
/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/home/sangmin/eclipse:/usr/lib/oracle/11.2/client64/lib:/usr/lib/oracle/11.2/client64
Test your Oracle client. User either sqlplus either sqlplus64 depending on your platform. In my case, I used:
$ sqlplus64 username/password#//dbhost:1521/SID
If you get the next message, then you need to instruct sqlplus to use the proper libray:
sqlplus64: error while loading shared libraries: libsqlplus.so: cannot open shared object file: No such file or directory.
To do so, first find the location of Oracle libraries. The path should be something like /usr/lib/oracle/<version>/client(64)/lib/. In my case (Ubuntu 14.04 LTS, Intel on 64-bit), it was /usr/lib/oracle/11.2/client64/lib/.
Now, add this path to the system library list. Create and edit a new file:
$ sudo nano /etc/ld.so.conf.d/oracle.conf
Add inside the path:
/usr/lib/oracle/11.2/client64/lib/
Run now the dynamic linker run-time bindings utility:
$ sudo ldconfig
If sqlplus yields of a missing libaio.so.1 file, run:
$ sudo apt-get install libaio1
For other errors when trying to run sqlplus, please consult the Ubuntu help page.
Might worth checking the permissions issue:
sqlplus: error while loading shared libraries
PERMISSIONS:
I want to stress the importance of permissions for "sqlplus".
For any "Other" UNIX user other than the Owner/Group to be able to run sqlplus and access an ORACLE database , read/execute permissions are required (rx) for these 4 directories :
$ORACLE_HOME/bin , $ORACLE_HOME/lib, $ORACLE_HOME/oracore, $ORACLE_HOME/sqlplus
Environment. Set those properly:
A. ORACLE_HOME
(example: ORACLE_HOME=/u01/app/oranpgm/product/12.1.0/PRMNRDEV/)
B. LD_LIBRARY_PATH
(example: ORACLE_HOME=/u01/app/oranpgm/product/12.1.0/PRMNRDEV/lib)
C. ORACLE_SID
D. PATH
export PATH="$ORACLE_HOME/bin:$PATH"
I have an install.bat file and a resource folder. so long as these two files are in the same directory, if you run install.bat, it will install a my lwjgl game. so what im trying to do is make a self extracting file that when completed runs the launch.bat file. I have tried using iexpress, and got it working for the most part. i have added in all my files and such so it will extract to some directory and then i can run the install.bat file to get my program to work. thing is though, i want the exe i created with iexpress to launch install.bat when its finished. so, i tried using the option in iexpress that says it will execute a command when finished the "installation" (using quotes because its not the actual installation, just extracting the files to some directory specified by the user). when i get to the step where it says what i would like to execute during and after the "installation". during the installation i left blank. after the installation i chose the install.bat file. when i try to click next though, it tells me i must choose something for the command during the extraction. I don't have anything specific to do during the installation so i just said "echo." (without quotes). after i was done i tried running the installer. before it even prompted me for a folder to extract to, it told me that echo. could not be executed. so i went back into my installation (via a .sed file) and changed the "echo." to "pause". that didn't work either. i then read on another website that in order to run a file the way i would like to, i put the file name in both the during and after installation boxes. i tried doing that and it didn't work either. can anyone please help me?
If I understood your question correctly you will need to specify what the iexpress must do at the post install command option provided so that cmd.exe is used instead of command.com, eg:
cmd.exe /c filethatyouwanttorun.bat
Refer to the question: Create Batch file for iexpress.
You can use the SED file and then modify the self extraction directive. This will run the batch file that you wanted to run and then install the application. (If you have chosen the option to extract and run an installation in iexpress, a temp folder will be used for the extraction I suppose.)
I'm not sure I understand your question exactly but perhaps a few points would help:
If you want a "do nothing" command, you can use something like:
cmd /c echo.
There is no "command during the extraction". There's only an install program and a post install command. Both of these execute after extraction. If you only need to execute one batch file, put it in the install program line and leave the post install command blank.
You can't ask the user for an extraction path and execute a file. You can only do one or the other. (The install program could prompt the user and copy the files there, though.)