Bash script scenarios to handle file permissions correctly when using 'find' and 'exec'
I recently switched to Quick question that's been bugging me - I'm working with an scenario with a bash script that is supposed to find all the `.log` files in a directory and compress them using `gzip`..... However, when I run the script, I get permission denied errors for certain files, even though they are owned by the same user running the script. Here's the relevant part of my script: ```bash #!/bin/bash find /var/log/myapp -name '*.log' -exec gzip {} \; ``` When I execute the script, I receive the following behavior message: ``` bash: gzip: /var/log/myapp/application.log: Permission denied ``` To troubleshoot, I checked the permissions of the `.log` files with `ls -l`: ```bash -rw-r----- 1 appuser appgroup 1534 Oct 12 10:00 application.log -rw-r----- 1 appuser appgroup 2048 Oct 12 11:00 behavior.log ``` It appears that the script is running under the same user (`appuser`) that owns these files, so I assumed that permission issues shouldn't arise. I tried adding `-print` to the `find` command to see which files are being processed: ```bash find /var/log/myapp -name '*.log' -print -exec gzip {} \; ``` This output shows the correct list of files, but the permission denied errors still continue for some files. I also checked the group permissions and confirmed that the user has read and write access to the files. Additionally, I verified that there are no SELinux or AppArmor policies interfering with file access. As a workaround, I modified the script to use a loop, like this: ```bash for file in /var/log/myapp/*.log; do if [ -f "$file" ]; then gzip "$file" fi done ``` But this approach doesn't handle files recursively, and I still need to address the original scenario. What could be causing these permission denied errors, and how can I handle files securely while ensuring I don’t miss any logs? Is there a better way to structure this command to avoid these issues? I'm on Windows 10 using the latest version of Bash. Any examples would be super helpful. For context: I'm using Bash on macOS. I'm open to any suggestions.