linux - BASH:- 将字符串解析为单独的命令行参数

Question

我有以下 bash 代码，想将字符串转换为命令行参数以传递给不同的程序。

所以我有 GETVARS 并且想拆分并做类似的事情

./somecommand $GETVARS[0] $GETVARS[1]

等等

GETVARS 将是任意长度的元素。

  GETVARS = ""
        for id in {100..500..10}
            do
                for letter in A B C D E F
                do
                    GETVARS=$GETVARS"\":${id}:${letter}\" "
                done
        done
  //GETVARS = "":100:A" "100:B" "100:C"" .. and so on

Answer 1

开始于

getvars="" # no spaces around commas, use smaller case variable names

并且根据需求，您显然正在寻找一个像

这样的简单数组

getvars=() # or do declare -a getvars

我不清楚这个要求，但下面是我猜你应该做的

for id in {100..500..10}
  do
for letter in A B C D E F
  do
    getvars+=( \":${id}:${letter}\" ) # adding elements to array
 done
done
#and later do the following
./somecommand "${getvars[@]}" # Each element will be separated to a word