https://jackxiang.com/index.php zh-cn https://jackxiang.com/post// jack <xdy108@126.com> Fri, 28 Sep 2018 10:15:20 +0000 https://jackxiang.com/post// for i in $(cat url.txt);do  echo /usr/bin/curl -I "'$i'";done;           /usr/bin/curl -I 'baidu.com' /usr/bin/curl -I '360.cn' /usr/bin/curl -I 'souhu.com' /usr/bin/curl -I 'sina.com.cn'
输出（注意那个双引号里加一个单引号引起来，输出单引号，还是那个双引号为匹配，里面单引号原样输出，这点得记住！）：
/usr/bin/curl -I 'baidu.com'
/usr/bin/curl -I '360.cn'
/usr/bin/curl -I 'souhu.com'
/usr/bin/curl -I 'sina.com.cn'

for i in $(cat url.txt);do echo /usr/bin/curl -I "''$i'''";done;  #双引号里加一个单引号引起来，输出单引号，还是那个双引号为匹配
/usr/bin/curl -I ''baidu.com'''
/usr/bin/curl -I ''360.cn'''
/usr/bin/curl -I ''souhu.com'''
/usr/bin/curl -I ''sina.com.cn'''

Curl命令实战：
for i in $(cat url.txt);do  /usr/bin/curl -I "'$i'"
;done;    
curl: (6) Couldn't resolve host ''baidu.com''
curl: (6) Couldn't resolve host ''360.cn''
curl: (6) Couldn't resolve host ''souhu.com''
curl: (6) Couldn't resolve host ''sina.com.cn''

2.Nc批量：
for i in $(cat ip.txt);do echo nc -w 1 -z -v $i 80;done;
nc -w 1 -z -v 10.71.182.175 80
nc -w 1 -z -v 192.168.111.43 80
for i in $(cat ip.txt);do  nc -w 1 -z -v $i 80;done;
for i in $(cat ip.txt);do  nc -w 1 -z -v $i 80;done;  
Connection to 10.71.182.175 80 port [tcp/http] succeeded!
Connection to 192.168.111.43 80 port [tcp/http] succeeded! ]]> https://jackxiang.com/post//#blogcomment <user@domain.com> Thu, 01 Jan 1970 00:00:00 +0000 https://jackxiang.com/post//#blogcomment