The function of if-else in shell script is an important asset for shell programmers. It is the best tool to use when you need to execute a set of statements based on pre-defined conditions. The if-else block is one, if not the most essential part of conditional programming. By regulatin...
If / elseif /else functionality PowerShell In the above examples, we have seen that if and else conditions are not satisfied if we have multiple if conditions, so it checks every If condition and when they are not true then else statement is executed. Here, to meet execution time criteria...
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Let's review the 5 words in this group that I mentioned earlier. $ type if; type then; type else; type elif; type fi if is a shell keyword then is a shell keyword else is a shell keyword elif is a shell keyword fi is a shell keyword ...
'Else if'in bash scripting, often written as'elif', is used to check multiple conditions in your code. It is used with the syntax,if [firstStatement]; then... elif [secondCondition]; then... else. It’s a powerful tool that allows your scripts to make decisions based on various scen...
Linux shell programming : loop control - for, while, break, and break n Linux shell programming : string Linux shell programming : for-loop Linux shell programming : if/elif/else/fi Linux shell programming : Test Managing User Account - useradd, usermod, and userdel Linux Secure Shell (...
Theif, if-else, if-elif-else statementsare used inBash scriptsfor executing blocks of code based on a condition outcome, just like they work in any other programming language. This article will go through the fundamentals of theBash if-else Statementand will show you how to utilize these co...
shell的基本语句(for循环,while循环,嵌套循环,if 的多重循环,case语句) 1.for循环(遍历) 练习1:检测当前172.25.254网段主机的状态 练习2:写一个10秒的倒计时 练习3:写一个用户自定义分秒的倒计时 2.while循环 练习1:批量创建用户,并非交互式修改用户密码 3.嵌套循环 练习:打印9*9乘法表 4.if-else 循环 ...
8.Shell Programming and Scripting Awk if elseif syntax error Below is the code. nawk -F "|" 'FNR==NR{a=$3 OFS $4 OFS $5 OFS $6;next} {\ if ($5 in a)\ {print $1,"ABC",$5,"I",a, $2,$3,$4 OFS OFS OFS OFS OFS OFS OFS OFS $2"-"$3"-"$4} ; \ elseif ($...
Using the shell, we can code the logic above as follows: 使用shell,我们可以编码上面的逻辑,如下所示: x=5 if [ $x = 5 ]; then echo "x equals 5." else echo "x does not equal 5." fi 1. 2. 3. 4. 5. 6. or we can enter it directly at the command line (slightly shortened...