bash 中有多种 for 循环变体; 我们很快就会在下面看到一些。 forinthe Range of Numbers 我们可以使用 for 循环指定一个数字列表,并可以一个接一个地迭代这些数字,如下例所示: foriin1 3 8doecho$idone 循环将迭代给定的值列表(即 1 3 8)。 在此特定示例中,输出将是: 1 3 8 for 迭代值列表 我们可以...
11. Range of numbers after “in” keyword You can loop through using range of numbers in the for loop “in” using brace expansion. The following example loops through 10 times using the values 1 through 10. $ cat for11.sh for num in {1..10} do echo "Number: $num" done $ ./fo...
The random number is 24916 This method provides a larger range of numbers and a higher level of randomness compared to$RANDOM. However, it’s more complex and might be overkill for simple tasks. 4 使用随机数案例 4.1 Random File Naming # Generate a random file name file_name="file_$RANDOM...
Write a Bash script that uses a for loop to iterate over a range of numbers from 1 to 20 and prints only the odd numbers. Code: #!/bin/bash# Iterate over a range of numbers from 1 to 20for((i=1;i<=20;i++));do# Check if the current number is oddif((i%2!=0));thenecho...
11. Range of numbers after “in” keyword You can loop through using range of numbers in the for loop “in” using brace expansion. The following example loops through 10 times using the values 1 through 10. $ cat for11.sh for num in {1..10} do echo "Number: $num" done $ ./fo...
When you are writing a bash script, there are situations where you need to generate a sequence of numbers or strings. One common use of such sequence data is for loop iteration. When you iterate over a range of numbers, the range may be defined in many different ways (e.g., [0, 1...
11. Range of numbers after “in” keyword You can loop through using range of numbers in the for loop “in” using brace expansion. The following example loops through 10 times using the values 1 through 10. $ cat for11.sh for num in {1..10} ...
We can write any number of commands inside theforbody. Multipleforloop variations are available in bash; we will quickly see some below. forin the Range of Numbers We can specify a list of numbers with aforloop and can iterate on those numbers one by one, as depicted by the following ...
A range of numbers can be used to create a one-line loop. for i in {1..3}; do echo "step: $i"; done Create Loop With Subcommand We can use subcommands to specify the values used in the loop. This method is especially useful for reading file contents. for i in `seq 1 3`;...
The random numbers are used in the programming for various purposes. The integer number or floating number can be used to generate a random number in bash. The random number of a specific range or a size can be generated using a bash script. How to gener