The syntax of the if statement in Bash is: if first-test-commands; then consequent-commands; [elif more-test-commands; then more-consequents;] [else alternate-consequents;] fi Tests commands in the bash if statement, and bash elif clauses, are executed in order until one test succeed....
In your bash script, you have the flexibility to incorporate multiple if statements as needed. Furthermore, it is entirely possible to nest an if statement within another if statement, creating what is referred to as a nested if statement. Syntax of nested if statement if condition1 then Code...
'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...
if 判断条件; then statement1 statement2 ... fi 2 双分支的if语句: if 判断条件; then statement1 statement2 ... else statement3 statement4 ... fi 3 多分支的if语句: if 判断条件1; then statement1 ... elif 判断条件2; then statement2 ... elif 判断条件3; then statement3 ... else sta...
bash 中的条件语句，基础就是 Test 。 if 先来个实例： x=5; if [ $x = 5 ]; then e...
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]; then echo "JAIL is set to a non-empty string"fiif [ -n "${JAIL+set}" ]; then echo "JAIL is set, possibly to the empty string"fiif [ -n "${JAIL-unset}" ]; then echo "JAIL is either unset or set to a non-empty string"fidone## syntax 1 ##if [[ -z "$va...
9. Bash if / else / fi statements 9.1. Simple Bash if/else statement Please note the spacing inside the [ and ] brackets! Without the spaces, it won't work! #!/bin/bash directory="./BashScripting" # bash check if directory exists ...
if [[ $string2 = *"Bash"* ]] then printf "Contains word 'Bash'. \n" else printf "Does not contain the word. \n" fi 如何把for语句放在一行里执行? #!/bin/bash # For statement in multiple lines for((i=1;i<10;i+=2))
# Note: The exit status may not be the same as with an if statement [[ $var == hello ]] && echo hi # Multi line (no else) [[ $var == hello ]] && { echo hi # ... } case设置变量的简单语句 在:内置的可以用来避免重复variable=在一个case语句。该$_变量存储的最后一个命令的最后...