How to Determine If a File Exists in Bash
A common action that comes up frequently while working in Linux is determining whether or not a file exists before taking action.
In Bash, there are two ways this can be completed.
The first way to check if a file exists in Bash is with the
test command with the
test compares an element against another and returns true or false.
test command can be expressed in three different syntaxes:
Let's say we want to figure out if the file
By combining the
test command with an
if statement, this can be easily accomplished.
If the file exists, this command will return a
File exists. If the file does not exist, it will return
File does not exist.
In this example we used the
test command in the
[ ] syntax; however we can accomplish the same goal with the other syntaxes as shown below.