Introduction
This repository verifies the behavior when you run the chmod command to change the file permissions to 644.
The commands you need to install
- git
Quickstart
If you have already installed the above command, run the following command to download it from the repository, then move to the directory, run chmod to change the permissions, and run the shell script.
ubuntu
Output results
hello chmod command world
bash: ./start_chmod_checkAuthority.sh: Permission deniedmacos
MacPorts
Output results
hello chmod command world
bash: ./start_chmod_checkAuthority.sh: Permission deniedwindows
WSL2
Output results
hello chmod command world
bash: ./start_chmod_checkAuthority.sh: Permission deniedMSYS2 MINGW64
Output results
Not possibleProcedure
ubuntu
Click to open details
Advance confirmation
Enter the following command into the terminal and if command not found does not appear, it is OK.
preinstall
If the command not found appears in the terminal, please install it using the following command.
command
By executing the following shell script, you should get the following output:
detail
hello chmod command world
bash: ./start_chmod_checkAuthority.sh: Permission deniedmacos
Click to open details
Advance confirmation
Enter the following command into the terminal and if command not found does not appear, it is OK.
*MacOS uses the MacPorts package manager to manage commands. If you haven’t installed it yet, please see the MacPorts installation instructions at the link below.
It also allows you to set aliases for commands so that you can call them without conflicting with existing environments.
If you are using this blog for the first time, please refer to the following two articles to set up your environment.
preinstall
If the command not found appears in the terminal, install it using the following command and set an alias.
command
By executing the following shell script, you should get the following output:
detail
hello chmod command world
bash: ./start_chmod_checkAuthority.sh: Permission deniedwindows
Click to open details
Advance confirmation
Enter the following command into the prompt and if command not found does not appear, it’s OK.
WSL2
MSYS2 MINGW64
*Windows has been confirmed to work with WSL2 and MSYS2 MINGW64. Please install WSL2 if possible, and if you are unable to set it up, you can run it by installing MSYS2, but there may be some commands that can only be run in WSL2. Please refer to the following article for instructions on how to install WSL2 and MSYS2.
preinstall
If the command not found appears in the prompt, please install it using the following command.
WSL2
MSYS2 MINGW64
command
By executing the following shell script, you should get the following output:
WSL2
detail
hello chmod command world
bash: ./start_chmod_checkAuthority.sh: Permission deniedMSYS2 MINGW64
detail
Not possibleAfterword
If you convert the -rw-r–r– output from ls -l to numbers, rw- is 6, r– is 4, and r– is 4, then if you run chmod 644 start_chmod_checkAuthority.sh, the permissions mentioned above will be granted to start_chmod_checkAuthority.sh. It’s easier to understand if you think of r as 4, w as 2, and x as 1, and you need to add them all up. The first – indicates a file or directory, – indicates a file, and d indicates a directory.