After executing the above Bash script, you will get an output like the one below: 0123Number 4! We are going to stop here.We are stopped!!! Break Out of theforLoop in Bash The keywordbreakalso can be used to stop theforloop at a specific condition. To do this, see the below examp...
Line 7performs a check using anifstatement. When the variable equals two ("$i" == 2), the program exits thewhileloop using the Bashbreakstatement online 10. In that case, the code jumps toline 16. If the variable is a different number, the script continues as expected online 12. Exec...
If you don’t specify the keyword “in” followed by any list of values in the bash for loop, it will use the positional parameters (i.e the arguments that are passed to the shell script). $ cat for3.sh i=1 for day do echo "Weekday $((i++)) : $day" done $ ./for3.sh ...
If you don’t specify the keyword “in” followed by any list of values in the bash for loop, it will use the positional parameters (i.e the arguments that are passed to the shell script). $ cat for3.sh i=1 for day do echo "Weekday $((i++)) : $day" done $ ./for3.sh ...
第一个Bash-Script LINUX shell的种类非常之多,但是目前用得最为广泛的还是Bash,本文也是基于Bash的Shell环境。 下面是一个简单的示例: #! /bin/sh echo 'hello world!' 这就是一个最简单的shell脚本了。 第一行的#!用来告诉系统,这个脚本用什么解释器来执行(说明:sh和bash本身是不同的Shell,但是在我目前用...
If the input is not a number, it prints an error message "Invalid input. Please input a number:" and the loop continues, prompting the user for input again. 4. Check for Required Arguments: Write a Bash script that requires two arguments to be passed. If the required arguments are not...
--- for 循环 [ES1] JavaScript 中的 for 循环很古老,它在 ECMAScript 1 中就已经存在了。...它用途广泛,但是当我们要遍历数组时也很麻烦。如果我们不想从第一个数组元素开始循环时它仍然很有用,用其他的循环机制很难做到这一点。...for-in循环 [ES1] for-in 循环与 for 循环一样古老,同样在 ECMAScrip...
break 2 ## break out of both while and for loops elif [ $RANDOM -lt 10000 ] then printf '"' break ## break out of the while loop fi done done echo continue Inside a loop, the continue command immediately starts a new iteration of the loop, bypassing any remaining commands: ...
# Break out of loop break else echo"Invalid Scan Status: Aborting" # Clean Up and Exit script cleanup exit1 fi sleep30 done # Obtain the Scan Session ID MyScanSessionID=`echo"$MyScanStatus"| grep -Po'"scan_session_id": *\K"[^"]*"'| tr-d'"'` ...
BASH script under linux supports the for loops. There are quite a few ways to write for loops. 1. List the Values for I in 1 2 3; do echo $I; done 2. Use 'SEQ' to list the values (but depreciated) for I in $(seq 1 3); do echo $I; done # or seq(1 1 3) 3.