Check to see if a file exists, and create it if it doesn't
1949
How do I check whether a file exists without exceptions?
13985
How to determine which process is creating a file?
6958
How can I check if a program exists from a Bash script?
10074
In C# check that filename is *possibly* valid (not that it exists)
132793
Create new file but add number if filename already exists in bash
32830
Waiting for a file to be created in C#
35245
How do I check if file exists in jQuery or pure JavaScript?
28774
How to Check Path is existing or not in java?
147324
JavaScript: Create and save file
91447
Check if a method exists
111030
How do I create a file AND any folders, if the folders don't exist?
1798
PHP - How to create a file dynamically?
97868
Checking for a file and whether it is readable and writable
73550
Checking if a URL exists or not
113311
Can I make `find` return non-0 when no matching files are found?
25534
Checking if a directory exists in Unix (system call)
39834
Check whether files in a file list exist in a certain directory