shell脚本实例总结

1.判断文件夹是否存在

#!/bin/sh

workspace="/home/web/mall"

#如果文件夹不存在
if [ ! -d ${workspace} ]; then
  echo "is not exists"
else
  echo "is exists"
fi

2.切分nginx日志

 #!/bin/bash
 #function:cut nginx log files for lnmp v0. and v0.

 #set the path to nginx log files
 log_files_path="/home/www/wwwlogs/"
 backup_files_path="/alidata1/logs/nginx/"

 log_files_dir=${backup_files_path}$(date -d "yesterday" +"%Y")/$(date -d "yesterday" +"%m")/$(date -d "yesterday" +"%d")

 if [ ! -d ${log_files_dir} ]; then
   mkdir -p $log_files_dir
 fi

 #set nginx log files you want to cut
 log_files_name=(access nginx_error wechat.51ekt.com mall.51ekt.com shop.51ekt.com api.51ekt.com.log)
 #set the path to nginx.
 nginx_sbin="/usr/local/nginx/sbin/nginx"
 #Set how long you want to save
 save_days=

 ############################################
 #Please do not modify the following script #
 ############################################

 log_files_num=${#log_files_name[@]}

 #cut nginx log files
 for((i=;i<$log_files_num;i++));do
 log=${log_files_path}${log_files_name[i]}.log
 if [ -f ${log} ];then
 mv ${log_files_path}${log_files_name[i]}.log ${log_files_dir}/${log_files_name[i]}_$(date -d "yesterday" +"%Y%m%d").log
 fi
 done

 #delete  days ago nginx log files
 #find $log_files_path -mtime +$save_days -exec rm -rf {} \; 

 $nginx_sbin -s reload