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Bash conditional
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| File conditions | |
| -b filename - Block special file | |
| -c filename - Special character file | |
| -d directoryname - Check for directory Existence | |
| -e filename - Check for file existence, regardless of type (node, directory, socket, etc.) | |
| -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 set-group-id - 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-user-id bit is set | |
| -w filename - Check if file is writable | |
| -x filename - Check if file is executable | |
| #!/bin/bash | |
| file=./file | |
| if [ -e "$file" ]; then | |
| echo "File exists" | |
| else | |
| echo "File does not exist" | |
| fi | |
| #!/bin/bash | |
| file=./file | |
| if [ ! -e "$file" ]; then | |
| echo "File does not exist" | |
| else | |
| echo "File exists" | |
| fi |
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