https://stackoverflow.com/questions/4277665/how-do-i-compare-two-string-variables-in-an-if-statement-in-bash http://www.masteringunixshell.net/qa36/bash-how-to-add-to-array.html https://www.cyberciti.biz/faq/linux-unix-bash-for-loop-one-line-command/ https://www.claudiokuenzler.com/bl...
My question is the following, can I add iPhoneX support for only newly created view controllers? I mean some view controllers will have i...Mysql Dump : count() Parameter must be an array of an object that implements countable Mysql error: Backtrace ./libraries/display_export.lib.php#380...
This line sets up the loop. With the “$” symbol, we are specifying that we are trying to access the value of the specific index of the array. The “@” symbol refers to the index of the array, which contains the value we are trying to access using the “i” iterator. In Bash ...
_upword() #@ USAGE: upword STRING { local word=$1 while [ -n "$word" ] ## loop until nothing is left in $word do to_upper "$word" _UPWORD=$_UPWORD$_UPR word=${word#?} ## remove the first character from $word done } upword() { _upword "$@" printf "%s\n" "$_UP...
Go to Top Using for loop to read an array Any array variable contains a list of data that can be iterated very easily by usingfor-inloop. The following example shows the use offor-inloop to read an array of string data. Here, each array value will fetch in the variable,$languageand...
For example, here's the array namedarrVarthat I want to work with: arrVar=( "1" "2" "3" "4" ) So if I add my variable name in the loop, the final version would look like this: #!/bin/bash arrVar=( "1" "2" "3" "4" ) ...
Instead of listing the for-in loop items, use an array to make your code more organized and easily readable. It simplifies iterating through data – the process of applying the loop for each item individually. Declare the array with its item at the beginning and add it to your for-in ex...
该脚本用$arg1变量将数组值传给arraydblr函数。 arraydblr函数将该数组重组到新的数组变量中,生成该输出数组变量的一个副本。然后对数据元素进行遍历,将每个元素值翻倍,并将结果存入函数中该数组变量的副本。 arraydblr函数使用echo语句来输出每个数组元素的值。脚本用arraydblr函数的输出来重新生成一个新的数组变量...
此代码应该可以解决您的问题: #!/bin/basharray=(1 2 3)i=0count_of_elements=${#array[@]} #counting the number of array elementswhile true; dorest=$(($i%$count_of_elements)) #counting rest of the division by count of array elementsprintf "${array[$rest]}," #dispay resulti=$((i...
array=('' '' 2 4); for f in ${array[@]}; do echo a; done a a 我希望这里有四个“ a”行,因为有4个数组元素 $ echo $ {#array [@]} 4 看答案 您必须引用变量以正确使用: array=('' '' 2 4); for f in "${array[@]}"; do echo a; done 和顺便说一句。搜索模拟答案:)...