Conditionals condition ? actionA : actionB # equivalent multi-branch form: if (cond1) { stmt1 } else if (cond2) { stmt2 } else { stmt3 } Looping Constructs While loop: while (cond) statement Do-while loop: do statement while (cond) For loop: for (init; test; step) statement Filter Lines by Field Val...
Introduction In shell scripting, several operaotrs are used to test the state of files and dircetories. The -f operator checks if a path is a regular file, -d checks for a directory, -e verifies existence, and -s determines if a file has a non-zero size. Checking if a Variable is Empty You can use a...
Comparison operators evaluate the relationship between two operands and return a boolean result. Java supports <, <=, >, >=, ==, and !=. The outcome of any comparison is strictly true or false. These states are stored using the boolean primitive type. Both true and false are reserved lit...