Function eval_expr 

pub fn eval_expr(
    expr: &TestExpr,
    shell: &mut Shell,
    params: &ExecutionParameters,
) -> Result<bool, Error>

Evaluate the given test expression within the provided shell and execution context. Returns true if the expression evaluates to true, false otherwise.

Arguments

• expr - The test expression to evaluate.
• shell - The shell context in which to evaluate the expression.
• params - The execution parameters to use during evaluation.