We use chmod command to change the permissions of a file in Unix In this command we can pass the file permissions in the form of a threedigit number In this number 755, first digit 7 is the permissions given to owner, second digit 5 is the permissions of group and third digit 5 is the permissions of all othersWhat does 'chmod 755 file' accomplish?1Makes the file read by the owner, execute by group and other, 2Makes the file execute by the owner, execute/read by group and other, 3Makes the file read/write/execute by the owner, read/execute by group and other, 4Makes the file write/read by the owner, execute by group and other, 5Makes the 755 means read and execute access for everyone and also write access for the owner of the file When you perform chmod 755 filename command you allow everyone to read and execute the file, owner is allowed to write to the file as well Chmod 755 Command What Does It Do Codefather Chmod 755 example