Using for loop to read a list of string values with spaces When a list of a string is read byfor-inloop and any string value contains space then the values split into words based on space if the string value is not quoted with a single or double quotation. The following example shows ...
for n in a b c d e do while true do if [ $RANDOM -gt 20000 ] then printf . break 2 ## break out of both while and for loops elif [ $RANDOM -lt 10000 ] then printf '"' break ## break out of the while loop fi done done echo 继续 在循环内部, continue命令通过传递任何剩余...
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 be processed in the body of the loop. This list can be a variable that contains several words separated by spaces. If list is missing...
fname1fname2 这里我们使用一种方法: for file in ../*; do echo $file; done, 3. 即在in中直接指定路目地址并加上星号指定所有的文件.或者利用通配符指定一系列文件例如:fname*.例如: forfilein./fname*;doecho$file;done 4. ./*不能够遍历到隐性文件,如果只要遍历隐性文件则使用 ./.* 。如果要...
However, it’s important 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 ha...
# in the filenames DIR="." # Controlling a loop with bash read command by redirecting STDOUT as # a STDIN to while loop # find will not truncate filenames containing spaces find $DIR -type f | while read file; do # using POSIX class [:space:] to find space in the filename ...
So, while (pun intended) there are different ways to perform loops, in this article, I focus on examples usingwhileloops. 1. A simple while loop Imagine that you're installing a huge application, and you're concerned that it may eventually use too much space on the file system. ...
How to iterate on multiple lines in a for loop in bash? Solution 1: Ensure that there are no spaces following the backslash. for i in foo_dir/foo_filename.xml,passed,"some string" \ foo_dir/bar_filename.xml,failed,"another string" \ ...
rsync,ssh: do not overescape spaces in remote filenames (#910) (e8dc253) source files using absolute paths for absolute BASH_SOURCE (e1a70c6) tar: Complete added files with long opts (c94bebb) update-alternatives: fix the "--help" parsing (07605cb)2.14...
You can iterate through the elements of a Bash array using aforloop. Here’s how: # Looping through an array for country in "${countries[@]}" do echo $country done # Output: # 'USA' # 'Canada' # 'Australia' In this example, we looped through thecountriesarray and printed each ele...