I want to make a shell script, which is executed when it is clicked on. I know you can do this with the Terminal command chmod u+x (filename) but I want to be able to send the file let's say by email or scp, and it should still be executed when clicked on by the new user.
I don't really think that is possible. The executability of the file is not an attribute within the file which tells the system to execute it. Its something you tell the system to do. I guess it is a security measure, regarding running maybe a risky command, lets say, rm -rf an important system folder.
Related
I'm trying to automate the installation of a program that needs to be run from the Terminal on MacOS. This seems simple enough but the installation script expects needs to run as root (or sudo) and find files from the root directory that it's running from and then looks for the user to provide a password as terminal input before it completes. I don't mind providing the password in a readable format as we will only be using it internally and the password will be changed soon after we're finished with this project.
I have the following so far and it's not working because it doesn't seem to accept my input from the response file. I'm using the sleep to wait the few moments that it takes to execute that first step.
do shell script "cd ~/Desktop/; ./setup; /bin/sleep 5; ~/Desktop/MyApp/Tools/RunThis_WithVarialbles -s blah.com -someOtherVaiable -u uName#blah.com < ~/Desktop/sccm/Tools/response.txt" password "passwdIDCisVisible`enter code here`" with administrator privileges
The error I get from Script Editor is:
error "/bin/sh: ./setup: No such file or directory
ERROR 2 when mkdir in CreateDirectory - No such file or directoryERROR 2 when mkdir in CreateDirectory - No such file or directory
Please enter your password.
(null)(null)(null)(null)(null)" number 8
I'll be the first to admit that I'm a total Noob! Thanks for your patience!
Ok, so I can see a couple of wrongs in your command already. And it still seems pretty unclear what you are trying to achieve. Yet, instead of asking a lot of questions and causing confusion, let's just stick to the first step.
The first part of your error message reads: error "/bin/sh: ./setup: No such file or directory. So this could indicate that:
~/Desktop/setup does not exist. (Check if it does).
~/Desktop/setup is not properly specified and you need to add a file extensions (e.g. like ~/Desktop/setup.sh)
You do not have the proper rights to execute the file. So you should execute something like chmod u+x to give execution rights to your current user. (And sudo chmod u+x for root).
See if you can get passed that first. Learning to code usually means taking baby steps at first.
Good luck.
I want to index some files and keep a registry as part of a utility I am writing in BASH. So, my tool would go to a massive directory and write some essential information about each file it finds there to another file that I would like to call "myregistry." The file would only be rewritten if the user asks it to - since going through a large file structure and "indexing" it this way would take considerable time.
I want this file to not show up when the user does ls in the directory where it is contained. In addition, I want the user to have no privileges with it at all - the user should not be able to open it up on vim or anything, not even to just look at it.
However, if the user executes my script again, I want the user to have the option of getting some information out of the file from there. I also want the script to have the permissions to look at the file and add or delete things from it, if the user prompts it to. But the user should not be able to do anything to it directly.
How can I do this? It would require using chmod but I have no idea how to put it together.
I'm thinking:
# Enable write permission
# Do Something - ensure that no one else is writing to this file
# Disable write permission
On Unix, you're more or less on an equal footing with other processes that run under the same user. Whatever you can do, they can do. If you can hide and unhide something, so can they. Interpreted scripts need read permissions to run, so it's not like you can hide any secrets in your executable. If you can however, distribute your software as a binary, you'll be able to run without being readable. Then you can hardcode a secret into the binary and use it to encrypt and decrypt files. Users will be able to run your binary, but only the superuser will be able to get the secret and decrypt your registry. That's real security (against regular (nonroot) users) (especially if you manage to create and embed the secret at installation time).
Playing with dotfiles and permissions won't fool any advanced user.
Something like this work? write_index and read_index are your work.
cd massive_dir
TFILE=$(mktemp --tmpdir=.)
write_index >$TFILE
mv -f $TFILE .index
chmod a-rw .index
To read
chmod +r .index
read_index .index
chmod -r .index
Note that no locking is needed because of the temp file. mv is atomic.
I have a unix shell script file whose owner is "xyz" when run deletes some specific files.
I want to trigger this script to delete files in some other directory where the owner for the files to be deleted is different from the owner of the script. Is this possible? Is this possible to run this script as different user so that it can delete those new files?
EDIT : I use Autosys to periodically trigger this script.
You can chmod the files that need to be deleted first if you have sufficient rights. Afterwards your script, no matter what user it executes, will succeed.
Examples : http://en.wikipedia.org/wiki/Chmod
Usually you use sudo for that:
sudo -u ANOTHER_USER /path/to/the/script.sh
However, your current account needs proper permissions to do so. You can configure those permissions using the file /etc/sudoers.
You'll find a ton of articles out there how to use sudo. This for example: http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:Ch09:_Linux_Users_and_Sudo
First off I am very very new to shell scripting. I am trying to write a script that takes in one parameter and then copies a folder in a different directory naming it using the parameter. This is the current code that I have:
#!/bin/sh
cd /var/www/html/fbplugin/chrome
sudo mkdir temp/$1
sudo cp -rf "/var/www/html/fbplugin/chrome/fbplugin" "/var/www/html/fbplugin/chrome/temp/$1"
When I run this code it says can't cd to /var/www/html/fbplugin/chrome. I'm not sure why it is saying this because I know the directory exists. I have copied the line directly and it works in terminal. If anyone could help me out that would be great.
If it matters in order to run the script I am typing "sh build.sh"
If that directory really exists, then you must have executed that script with a different user (cron, webserver, etc).
Check the rights for that directory.
I don't know why you're getting the error about cd, but it looks like you could just use absolute paths throughout. That would solve the larger problem of the script working correctly.
I have seen that i can use chmod +x command in Mac to make a shell script executable. This works fine, but i have noticed that i have to do the same thing every time this shell script file is copied to another Mac computer.
Is there a way to make the shell script executable by default when double clicked, without such command ... As the shell script file will be given to many users, and doing this will be hard for some of them ?
Best regards.
If you pack your whole program in a .tar file (or in a .tar.gz-file, which is the same, but compressed), the executable-"permission" will be preserved.
Give it the '.command' extension and it can be executed from the Finder.