-w FILE (conditional operator)

true if the file exists and is writable by you, i.e. the current user.

Links

• Bash manual
• POSIX specification of test

Examples

Different ways to test if a file is writable:

1 2 3 4

test -w ~/file && echo "writable" [ -w ~/file ] && echo "writable" # Bash [[ -w ~/file ]] && echo "writable"