What does chmod 555 mean? What Does Chmod 555 Mean? Setting a file’s permissions to 555 makes it so that the file cannot be modified at all by anyone except the system’s superuser (learn more about the Linux superuser).
What is chmod 744? sets read and write permissions for owner and group, and provides read to others. chmod 744 file1. sets read, write and execute for the owner and read only for the group and all others. chmod 777 file1. sets read, write and execute for everyone.
What does chmod 764 do? ‘764’ absolute code says the following: Owner can read, write and execute. Usergroup can read and write. World can only read.
What does chmod 664 do? chmod 664 is equivalent to only owner and his group members can write, others are only allowed to read. chmod 644 means only the owner are allowed to write/modify, read-only for others (group) included. There is no number 7 or 5 in the chmod number, which means no one are allowed to execute the file.