bar=2if[[$foo-ne$bar]]thenecho"The integers are not equal"fiCopy This example will print the result“The integers are not equal”: The integers are not equalCopy 3. String Comparison Likewise, we can compare strings. Note thatfooandbarare holding strings now, instead of numbers: foo=Hel...
The very first example in this guide demonstrates integer comparison. There are more ways to compare integers. <integer_a> -eq <integer_b>: Integer_a is equal to integer_b. <integer_a> -ne <integer_b>: Integer_a is not equal to integer_b ...
is not equal to[[ $x -ne $y ]] or [ $x -ne $y ]This evaluates to true if both the integers in comparison are not equal. is greater than[[ $x -gt $y ]] or [ $x -gt $y ]This returns true if the integer value in the variable x is greater than the integer value in ...
This problem involves writing a Bash script that defines a function named "factorial()" to calculate and return the factorial of a given number. The factorial of a non-negative integer n is the product of all positive integers less than or equal to n. The script should include a recursive ...
compare two values, or they ask a question about one value. Conditional expressions are always between double brackets ([[ ]]), and they either uselogical flagsorlogical operators. For example, there are several logical flags you could use for comparing two integers. If we wanted to see if...
It iterates over each item of an array using a bash for loop and until loop to compare adjacent items with a bash if statement and swap them if they are in the wrong order. The algorithm iterates until all the items are sorted.
“-eq” comparison operator is only designed and used for the comparison of string values or variables. To compare the numbers of integers in bash, we need to utilize the “=” assignment operator to check whether the two values are equal or not. Let’s save this updated code to see ...
Not only integers; you can alsocompare strings in bashwith the test command. Let me share some examples. String comparison with test Command Here are some string comparison examples using the test command. Check if the string is not empty ...
Ctrl + d : if you've type something, Ctrl + d deletes the character under the cursor, else, it escapes the current shell. Ctrl + e : move to the end of line. Ctrl + k : delete all text from the cursor to the end of line. Ctrl + l : equivalent to clear. Ctrl + n : ...
Failure codes must be positive integers between 1 and 255.Another handy command we can use when writing a script is exit. This command is used to terminate the current execution and deliver an exit code to the shell. Running an exit code without any arguments, will terminate the running ...