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 H ow do I use chmod and chown command under Linux / Unix operating systems? How to Use chmod Command Let's say we want to change Linux file permissions from rwxrwrw to rwxr–r– Simply enter this line chmod 744 file name By executing this command, the owner can read, write, and execute the file ( rwx ) To change the file permissions using chmod, run chmod , swapping in the desired file permissions and the directory or file The owner can change file permissions for any user, group or others by adding to remove or to add certain permissions How To Use The Chmod Command On Linux Chmod command in linux to change permissions