Ray_chen

摘要： #!/bin/bash read -p "请输入要爬取的页面数(默认为10)：" page_num page_num=${page_num:-10} echo $page_num read -p "请输入要保存的目录名称(默认为img)：" save_path_name save_path_name=${save_page_name:-"/opt/img"} [ ! -d $save_path... 阅读全文

摘要： awk -F: 'BEGIN{printf "%-20s%-20s%-20s\n","User","UID","Home"}{printf "%-20s%-20s%-20s\n", $1,$3,$6}END{print "Total",NR,"lines."}' /etc/passwd User UID Home ... 阅读全文