你不需要分割文件。只是放 wait 每隔20行，如下所示，这将解决您的问题：-

hdfs dfs -mv /source/path/file.xt /destination/path/ &
 .
 .
 #after 20 line or more as per your requirement
 wait
 hdfs dfs -mv /source/path/file.xt /destination/path/ &
 .
 .
 wait
 hdfs dfs -mv /source/path/file.xt /destination/path/ &
 .
 .
 wait

添加 wait 每隔20行使用以下命令

awk ' {print;} NR % 20 == 0 { print "wait"; }' yourfile.sh > newfile.sh
                      ^ change this number if you want to insert `wait` in a specific place for example if you want to put `wait` every after 30 lines make it like below

awk ' {print;} NR % 30 == 0 { print "wait"; }' yourfile.sh > newfile.sh

finally:-

mv  newfile.sh  yourfile.sh
``` `yourfile.sh` 是有40000行命令的文件。

****总是备份原始文件。