File Test Operators

File Test Operators

Returns true if

• -e and -a file exists
• -s file is not zero size i.e. not empty
• -f file is a regular file i.e. not a directory
• -d file is a directory
• -h and -L file is a sympbolic link

Check if a file exists

1if (-e foo.txt ); then
2    echo "foo.txt already exists!"
3else
4    // Do something
5fi

Links

• Advanced Bash-Scripting Guide: 7.2. File test operators