I am trying to call a bash script from my php file of click of a button that simple creates a directory. However, when i run from the web it would not do anything when i run from the terminal it works fine.
Not sure what the problem is ?
test.php
header('Content-Type: application/json');
$result =shell_exec('sh /var/www/shellscriptphp/test.sh ');
exit();
test.sh
mkdir testfolder
Just to close the question, your code works as long as your uid has permissions on the server's filesystem.
You can change permissions in the filesystem using chmod (see man chmod for details).
Related
My goal is essentially to run executable(say .sh or .py) with with php code, where executable would potentially create some new files in the directory.
For example, an obvious first try (shell_exec):
<?php
$output = shell_exec('sh shell.sh');
echo $output;
?>
Where the shell file is:
#!/bin/bash
# My first script
whoami
mkdir "NewDir"
Does not fully work if executed by visiting a page. whoami command returns "daemon" (not my account name) and folder "NewDir" is not being created.
I think this is permissions problem, even though my htdocs folder has permissions 777. (What I am trying to do works on Windows).
I think if I could make this simple script create a directory then my original would be resolved.
Any suggestions?
Well actually this is quite simple. Get the .py or the .sh file and use:
<?php
Include_once 'filename';
?>
Thank you for your time
Try using the full path in your bash script
#!/bin/bash
# My first script
whoami
mkdir /tmp/testFolder
Make it executable and set permissions to Folder:
chmod +x bashscript.sh
chmod 777 /tmp/testFolder
Test to start it:
./bashscript
Then everything should woring
I'm following this tutorial.
I cannot get the gitpull.php script to execute a git pull when accessing the script through the browser.
I can manually execute a git pull from shell on my remote server.
I can manually run the php script:
<?php `git pull`;
which uses back ticks to run shell if I explicitly call the script in shell. php gitpull.php
I've checked permissions on the php file and the file belongs to www-data user. Why can I run the script through the shell but not the browser?
check path and permissions. also change owner to www-data if you are using a debian based distro.
ie: chown www-data:www-data scriptname
and check php error log for details.
It could be the permissions of your web server. The web server would need permissions to execute files.
What web server are you using?
Make sure that the file has the execute bit set.
I am trying to run a .sh file from php.
I tried doing it with shell_exec(). but its not working
I refered many questions related to this in stack overflow but could not solve
my php code is(web.php)
<?php
echo shell_exec('/var/www/project/xxe.sh');
echo "done";
?>
only done is printed. but it is working from terminal(php /var/www/project/web.php)
In xxe.sh I am calling a python file
python vin.py
I have also changed the file permission to 777 for both .sh n .py files
please help
If you say it works on the terminal and not on apache then apache's php.ini file may be disabling the use of shell_exec().
See http://www.php.net/manual/en/ini.core.php#ini.disable-functions
Your apache's php.ini file may look something like
disable_functions=exec,passthru,shell_exec,system,proc_open,popen
Remove shell_exec from this list and restart the web server, although this is a security risk and I don't recommend it.
shell_exec might not know what directory to look in for your executable's location directory. What solved it for me was this before the shell_exec:
putenv('PATH=/usr/local/bin');
Then the terminal can find the executable. Also check permissions on every part of the command to make sure apache user has read and execute permissions.
If it works well in shell, I think apache is chrooted. So php can't find /var/...
Or user of httpd user does not have permission to enter /var/...
If you are good at PHP. Open dir /var/... And readdir() and check dir exists and check file exists.
This question might help you. scanning /home/ with opendir()
The problem is usually that when you exec code from within php it is run as the webservers user www-data in alot of linux distros. Normaly this user does not have an enviroment set up, and because of that no PATH. By using full paths in your files you can usually overcome this.
xxe.sh
/usr/bin/python /path/to/script/vin.py
While trying to run a script triggered by github post-receive webhook.
Here is where my project directory is located(cloned git repo):
/var/www/html/my-repo
I create a script inside the above directory called webhook.php:
<?php
#webhook.php
$cmd = shell_exec("git pull 2>&1");
#for debugging
echo $cmd;
?>
Execute the following command inside /var/www/html
sudo chown www-data:www-data -R my-repo/
Test it by going to http://www.myserver.com/my-repo/webhook.php
Add the path to your script to github webhooks.
I have been stuck in this problem for several hours.
I have thought about a solution.
1. move your script to a python file "script.py" and place this file to your server root.
2. shell_exec("python script.py");
Any way, it works for me.
On my host I had to give a different path for my php file to be executed from shell_exec().
This didn't work shell_exec('/usr/bin/php backgroundtask.php');.
While this did shell_exec('/opt/php/php-5.5.0/bin/php backgroundtask.php');.
You can visit this Reference.
I had the same issue because PHP backslashes.
PHP escapes the backslashes, so the command that reaches the shell
'COPY E:path1\path2\file.prn /B \127.0.0.1\"PRINTER NAME"'
so I gave command like this
'COPY E:\\path1\\path2\\file.prn /B \\\\127.0.0.1\"PRINTER NAME"'.
You have to double-escape the backslashes: once for PHP and once for the shell.
I have to automate a process using php in which I have to append content in a file.
The file does not have any specific permissions specified but the folder 'abc' has read only permissions, so fopen() prompts permission denied when I try to append a file.
But I can edit the file manually and also from the command prompt. So I tried the following:
When I try
echo exec("echo Testing>>\\xx.xx.x.x\C$\abc\test.txt");
in my script, it does not work.
If the same command
echo Testing>>\xx.xx.x.x\C$\abc\test.txt
is run on cmd it works.
I even tried psexec:-
echo exec('C:/psexec \xx.xx.x.x cmd /c \"echo Testing>>C:\abc\test.txt\"');
again when i run
C:/psexec \xx.xx.x.x cmd /c "echo Testing>>C:\abc\test.txt"
on cmd it works fine.
Is it anything to do with exec() that I am doing wrong?
OR Is there any other way I can edit file, because I should not change the folder permissions but still get the process automated.
I assume you are using Windows. On Debian Linux, I would tell you to give write permissions to user www-data on the appropriate directory.
You probably need to give the local IIS worker account write permissions on the directory. The local IIS worker account is likely named something like IUSR_[SERVERNAME].
Some webhosts decides to remove the function exec for security reasons.
view your php info and check if yours is disabled.
HI there!
I've run into some problem while learning to combine .sh files and PHP. I've create a file test.sh and in that file I call a PHP file called test.php.
If I double click on the .sh file then it runs perfectly but when I try to run it from the terminal I get "command not found". I'm in the exact folder as my .sh file but it wont work. Here's my test.sh:
#!/bin/bash
LIB=${0/%cli/}
exec php -q ${LIB}test.php one two three
exit;
When I doubleclick on the test.sh file then it returns the argv array like it suppost to. But why can't I run it from terminal?
use ./filename.sh
no matter if your are in the same folder or not, without giving ./ the system is searching the path variable. (/bin/, /usr/bin and so on)
Is execute bit enabled?
chmod +x test.sh
Your $PATH variable may not include '.' - so the shell may not be able to find the command to run.
As others have said, sh ./file.sh will work...
It is possible that your environment is different when launching from the Terminal and when launching via a double-click. Try executing which php and echo $PATH from the Terminal to see what the deal is.
EDIT 1
As others have noted, if your "command not found" is referring to the shell script and not php, then you probably forgot to include the "./" before the name of the script (i.e. ./test.sh). Also, don't forget to make it executable by invoking chmod a+x test.sh. The reason for this is that PATH does not include the current directory (i.e. "."), because doing so would be a security risk (e.g. folders with a ton of files in them including a fake "ssh" which could then intercept your password or the like).
EDIT 2
Also, I don't know about you, but ${0/%cli/} is evaluating to -bash from within my Terminal. Are you sure that's what you wanted it to expand to? Perhaps you should specify the exact filename.
Another option is to run it with sh (or bash, if sh on your machine isn't bash and the script uses bashims)
sh filename.sh
bash filename.sh
This will work whether or not the file is executable or in $PATH