Bash脚本错误:(standard_in)1:语法错误

Question

我的bash脚本是以下

#!/bin/bash
wc=(5000 10000 20000 50000);
for r2 in {0.01 0.1 0.4 0.7 0.95};
do
for i in {0..3};
do
rr=$(echo "${r2} * 100" | bc)
ww=$(echo "${wc[$i]} / ${rr}" | bc)
echo $ww
done
done

但是，我收到了错误消息(standard_in) 1: syntax error。

你有解决这个问题的想法吗？提前谢谢！

等效的R代码是以下

wc <- c(50,100,200,500)
for(k in c(0.01,0.1,0.4,0.7,0.95)){
for(i in 1:4){

ww <- floor(wc[i]/k)
print(ww)
}
}

Answer 1

大括号表达式中需要逗号：

for r2 in {0.01,0.1,0.4,0.7,0.95};

否则，您只是在序列{0.01、0.1…上迭代。。。，0.95}。

实际上根本不需要大括号表达式：

for r2 in 0.01 0.1 0.4 0.7 0.95;