#!/bin/bashn=9999for(( i =1; i<=100;i++))do/root/testProgram$nsleep5 n=$((n+1))done REFER:How to increment a variable in bash?
A‘while’ loop will continue to execute as long as the condition in the loop remains true. When working with arrays, you can use a counter and increment it in each iteration until you’ve gone through all the elements. Here’s an example: fruits=('apple''banana''cherry')index=0while[...
Incrementing a variable: In this example, I haveused a while loopwhich will iterate will the value of theithe variable is less or equal to 5: i=1 while [ $i -lt 5 ] do echo i: $i let "i+=1" done And here's the output: ...
We checked the current number is 4 so we will increment once We checked the current number is 5 so we will increment once We checked the current number is 6 so we will increment once We checked the current number is 7 so we will increment once We checked the current number is 8 so w...
[zexcon@fedora~]$./learnToScript.shnumberTwelvevariableisequalto12 1. 2. 你所看到的是 if 语句的第一行,它在检查变量的值是否真的等于 12。如果是的话,语句就会停止,并发出 numberTwelve is equal to 12 的回显,然后在 fi 之后继续执行你的脚本。如果变量大于 12 的话,就会执行 elif 语句,并在 fi...
for((initialization;condition;increment/decrement))doShell command[s]done Example: Assume we want to write a script that may help us print a table of any user-provided number. We can do that using the following code. #!/bin/bashecho"Enter a Number: "readnumberfor((j=1;j<=10;j++))...
/bin/bash## Name: test-bucket-1## Purpose:# Performs the test-bucket number 1 for Product X.# (Actually, this is a sample shell script,# which invokes some system commands# to illustrate how to construct a Bash script)## Notes:# 1) The environment variable TEST_VAR must be set# (...
Line 7states a condition check using anifstatement. When the variableiequals9, the program proceeds tolines 9-11. In all other cases, the code jumps toline 13. Lines 9-11print a message to the console, incrementi, and thecontinuestatement resumes the loop atline 5. ...
Theevalcommand inBashis a powerful tool that allows you to evaluate and execute strings as shell commands dynamically. It is helpful when dealing with complex or dynamically generated commands stored in variables or strings. Next, learnhow to increment or decrement a variable in Bash, how tocompa...
A counter variable is used in the script to print the argument number with the argument value.#!/bin/bash #Initialize a counter counter=1; #Iterate the read argument values for val in "$@" do #Print each argument value echo "Argument $counter: $val"; #Increment the counter ((counter...