小编Sen*_*ome的帖子

我有一个简单的 bash 脚本，其中如果行数低于 10，则文件的内容将复制到文件 A，否则内容将复制到文件 B

这里是代码：

# File A and B are created before, since I'm in a loop
# file content is different each time. I add it either to A or B corresponding the matching.
# I know I could use wc -l directly on the file too but I don't think the problem came from
# it since i've tested both.

let nblines=$(cat file | wc -l)

if [[ $nblines < 10 ]]; then
  cat file …