Linux file permission calculator (chmod 755, 644)
Tick read, write and execute for owner, group and others to get the chmod number and rwx — or type a number to decode it.
About Chmod calculator
Tick permissions for the owner, group and others to get the octal number, the rwx string and a chmod command to copy — or type a number such as 644 to see what each class can do.
Common values: 644 for web files, 755 for folders and scripts, 600 for secrets such as SSH keys. Avoid 777 on servers.
FAQ
755 vs 644?
755 lets everyone read and execute (folders, scripts); 644 lets everyone read but not execute (regular files).
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