Bash File Testing
| -b filename |
Block special file |
| -c filename |
Special character file |
| -d directoryname |
Check for directory existence |
| -e filename |
Check for file existence |
| -f filename |
Check for regular file existence not a directory |
| -G filename |
Check if file exists and is owned by effective group ID. |
| -g filename |
true if file exists and is set-group-id. |
| -k filename |
Sticky bit |
| -L filename |
Symbolic link |
| -O filename |
True if file exists and is owned by the effective user id. |
| -r filename |
Check if file is a readable |
| -S filename |
Check if file is socket |
| -s filename |
Check if file is nonzero size |
| -u filename |
Check if file set-ser-id bit is set |
| -w filename |
Check if file is writable |
| -x filename |
Check if file is executable |