[Bash] for loop The basic syntax of a for loop in Bash is: forvariableinlistdocommandsdone Examples Example 1: Iterating Over a List of Words #!/bin/zshforwordinapple banana cherrydoecho"The word is:$word"done
If you want to check the disk space is multiple Linux servers then you can use below bash for loop. In thisexample we are loopingthrough all the servers of Servers.list and checking the disk space of /opt/backup and /opt/log using df -h /opt/backup /opt/log command. ...
$ bash forloop1.sh Example 2 - for Loop With a Break Statement The break statement is used within the ‘for loop’ to end the loop. First, create a file and run the following code. For instance, we will use for loop to read the list of names, and we will test two conditions....
while、select或until循环； continue: 继续执行for、while、select或until循环的下一次迭代； builtin:...
This type of for loop is characterized by counting. The range is specified by a beginning (#1) and ending number (#5). The for loop executes a sequence of commands for each member in a list of items. A representative example in BASH is as follows to display welcome message 5 times wit...
1 for 命令for 命令的基本格式:for var in list do commands done在 list 参数中, 需要提供迭代中要用到的 一系列值. 每次迭代, 变量 $var 会包含 list 的当前值.do 和 done 语句之间是每次迭代需要执行的命令(组).for 命令读取列表中的值:$ cat temp.sh #!/bin/bash for var in hello centos bas...
4.chkcofnig --list myserv //查看该服务在不同级别下启停状态。 1 2 3 4 5 6 7 8 9 10 Shell中loop循环 循环的定义: -计算机可以重复一而再,再而三的执行特定的指令,直到给定的条件满足为止,重复执行的这一组指令就叫做loop 。Bash中支持 -for loop -while loop 。注意每个循环使用时 首先,用在...
Basic structure of the for loop First, let's talk about the basic structure of a for loop, and then we'll get into some examples. The basic syntax of a for loop is: for <variable name> in ;do <some command> $<variable name>;done; The variable name will be the variable you speci...
For Loops Unlike most loops, theforloop does not test the condition of a variable each time it goes around the loop. Instead, it starts with a list of items to iterate through and works its way through them until it has reached the end. This makes it the most deterministic of the ...
#!/bin/bash # Define a list of names names=("Iolanda" "Valeri" "Sheela" "Jana" "Hartwig") # Iterate over the list of names using a for loop for name in "${names[@]}"; do echo "Hello, $name! Welcome to the Bash script." Done CopyOutput:...