chmod Permission Comparisons
Direct side-by-side technical comparisons between frequently confused Linux permission modes.
chmod 755 vs 644
rwxr-xr-x vs rw-r--r--
The fundamental rule in Linux administration is simple: use chmod 755 for directories and executable scripts, ...
chmod 755 vs 775
rwxr-xr-x vs rwxrwxr-x
The difference between chmod 755 and chmod 775 centers entirely on group write permissions. In a 755 directory...
chmod 644 vs 664
rw-r--r-- vs rw-rw-r--
Choosing between chmod 644 and chmod 664 depends on whether team members sharing the same Unix group need writ...
chmod 600 vs 400
rw------- vs r--------
Both chmod 600 and chmod 400 represent highly restrictive file permissions that completely isolate a file from...
chmod 700 vs 755
rwx------ vs rwxr-xr-x
The choice between chmod 700 and chmod 755 represents the boundary between private administrative directories ...
chmod 777 vs 755
rwxrwxrwx vs rwxr-xr-x
There is virtually no legitimate scenario on a production Linux server where chmod 777 is justified. Mode 777 ...
chmod 644 vs 600
rw-r--r-- vs rw-------
Mode 644 and mode 600 separate public operational files from confidential system secrets. Under mode 644, the ...
chmod 750 vs 755
rwxr-x--- vs rwxr-xr-x
The distinction between chmod 750 and chmod 755 revolves around public visibility. Both modes grant full permi...