#!/bin/bash
FILE=""
DIR="/tmp"
# init
# look for empty dir
if [ "$(ls -A $DIR)" ]; then
  echo "Take action $DIR is not Empty"
else
  echo "$DIR is Empty"
fi
# rest of the logic

更改目录的权限
find . -type d -exec chmod 755 {} \;

更改文件的权限
find . -type f -exec chmod 644 {} \;

更改php文件的权限
find . -type f -name ‘*.php’ -exec chmod 644 {} \;

在当前目录下复制文件
cp file.doc newfile.doc

复制文件到其它目录下
cp filename /tmp

复制时保留文件属性
cp -p filename /path/to/new/location/myfile

复制全部文件到其它目录下
cp * /home/backup

递归复制文件及目录
cp -R * /home/backup

定位php.ini

root@server [~]# php -i | grep php.ini

在php.ini中找到
disable_functions =
这一行，在其后面添加需要禁止的危险函数名，以英文逗号分隔。

disable_functions = "apache_child_terminate, apache_setenv,
define_syslog_variables, escapeshellarg, escapeshellcmd, eval,
exec, fp, fput, ftp_connect, ftp_exec, ftp_get, ftp_login,
ftp_nb_fput, ftp_put, ftp_raw, ftp_rawlist, highlight_file,
ini_alter, ini_get_all, ini_restore, inject_code, mysql_pconnect,
openlog, passthru, php_uname, phpAds_remoteInfo, phpAds_XmlRpc,
phpAds_xmlrpcDecode, phpAds_xmlrpcEncode, popen, posix_getpwuid,
posix_kill, posix_mkfifo, posix_setpgid, posix_setsid, posix_setuid,
posix_setuid, posix_uname, proc_close, proc_get_status, proc_nice,
proc_open, proc_terminate, shell_exec, system, xmlrpc_entity_decode"

重启apache服务器

root@server [~]# service restart httpd