How to Set 644 for Files and 755 for Directories in Linux

Question: How do I set 644 for files and 755 for directories in one shot?

Try: find /var/www/site -type d -exec chmod 755 {} + && find /var/www/site -type f -exec chmod 644 {} +

Info: Uses -type d to grant directories execute permissions (755) and -type f to grant files read/write permissions (644). Using + batches executions efficiently.

Examples:

• $ find /path -type d -exec chmod 750 {} +  # Restrict directory permissions to owner/group
• $ find /path -type f -name '*.sh' -exec chmod +x {} +  # Bulk grant execute to shell scripts
• $ chmod -R u=rwX,g=rX,o=rX /path  # Apply permissions recursively with capital X

Note: Running chmod -R 644 strips directory execute permissions and prevents directory traversal. Capital X in symbolic mode, as used in chmod -R u=rwX,g=rX,o=rX /path, applies execute permission only where appropriate, such as directories and files that already have an execute bit.