the for loop will be executed a total of 5 times, once for each item in the list. The current item from the list will be stored in a variable “varname” each time through the loop. This “varname” can
[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 Example 2: Iterating Over a Range of Numbers...
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 ...
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. ...
to be aware of potential pitfalls when using ‘for’ loops as ‘foreach’ loops in Bash. For instance, if your list items contain spaces, the loop will treat each word as a separate item. To avoid this, you’ll need to use quotes or a different method to handle items with spaces. ...
nbsp;now loop through the above arrayfor&...
Bash 的for复合命令 (compound command) 可以用于循环执行指定的语句。 该命令有两种不同的格式,查看 man bash 里面对 for 命令的说明,分别描述如下。 for name [ [ in [ word ... ] ] ; ] do list ; done for name [ [ in [ word ... ] ] ; ] do list ; done ...
Hopefully, these examples have demonstrated the power of aforloop at the Bash command line. You really can save a lot of time and perform tasks in a less error-prone way with loops. Just be careful. Your loops will do what you ask them to, even if you ask them to do something destr...
Here, we use the sleep command with a ‘for loop’, giving you a good night message every 20 seconds. #!/bin/bash echo "For loop with sleep timer" for i in 1 2 3 4 5 do echo "Im going to sleep - day $i" && sleep 20 done echo "* end of script *" Output Example 12 ...
You can’t use variables inside theBash Brace Expansion, instead you will need to use afor loopwith aBash Arithmetic Expression. [me@linux ~]$start=1[me@linux ~]$end=5[me@linux ~]$for((i=start;i<=end;i++));doecho$i;done12345 ...