Why Do I Get 'Permission Denied' After Using ./File2 in Linux

Why do I get 'permission denied' after using ./file2 in Linux?

You are trying to execute a file and you do not have the right permissions for this. When you create a new Bash script with your text editor (let's say Vim), you should have the following permissions: -rw-r--r--. As a user, you can then read and write this file, but you cannot execute it with ./.

1. If you want to execute a file without changing permissions, you can use the following command: bash myFile.sh.

2. If you want to execute a file with ./, you will have to modify permissions. Something like that is OK: chmod +x myFile.sh.

3. If you do not want to struggle with ./ and prefer to call myFile.sh from anywhere like other built-in commands, move the executable file in a directory that is in your PATH. /usr/local/bin should be a wise choice. Check your PATH with echo $PATH, just in case...

Getting permission denied while creating a directory and how to add suffix to .exe to each files in a directory

I used mkdir source_dir -> But getting error cannot create directory. Permission denied.

It seems you do not have permission to create a fodler here. You might use sudo mkdir source_dir, but is likely a better idea to make the folder in a directory where you have write access EG. $HOME.

Once error is resolved and files are created in source_dir then I will use mv .* source_dir destination_dir -> To move all the files at once but for this command I am not sure whether this will work or not

For moving use mv .* destination_dir from withing the source_dir. (IE, first cd source_dir then run the move command from above)

Then how to suffix all the files with .exe is also challenging to me and got stuck.

You will have to loop over the files and move them one by one.

for i in * ; do mv "$i" "${i}.exe" ; done 

Running my program says bash: ./program Permission denied

chmod u+x program_name. Then execute it.

If that does not work, copy the program from the USB device to a native volume on the system. Then chmod u+x program_name on the local copy and execute that.

Unix and Unix-like systems generally will not execute a program unless it is marked with permission to execute. The way you copied the file from one system to another (or mounted an external volume) may have turned off execute permission (as a safety feature). The command chmod u+x name adds permission for the user that owns the file to execute it.

That command only changes the permissions associated with the file; it does not change the security controls associated with the entire volume. If it is security controls on the volume that are interfering with execution (for example, a noexec option may be specified for a volume in the Unix fstab file, which says not to allow execute permission for files on the volume), then you can remount the volume with options to allow execution. However, copying the file to a local volume may be a quicker and easier solution.

Permission denied for read pickle-file under scheduler and bash script

It was fixed by usage approach with Path:

from pathlib import Path
example_pickle = Path('logs/example_pickle'+datetime.now()+'.pickle')

Thanks everyone for the inspired ideas:)

How to solve permission denied error in cron?

you must give execute permission to your script before executing.

chmod u+x shellScript.sh

Can't run shell script from other shell script

have you something like #!/bin/sh in file2.sh? If not, use sh file2.sh $kinstead of ./file2.sh $k

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