一个在linux上更新、备份文件的bash script案例

  1 #!/bin/bash
  2 #auther:hmy
  3 #version:1.0
  4 #backup old files & update new files
  5 
  6 #define work directories
  7 #You should change them as your situation.
  8 old_dir=/lab/pms_former
  9 new_dir=/lab/pms_later
 10 rubbish_ud=/lab/rubbish/update
 11 rubbish_rb=/lab/rubbish/rollback
 12 
 13 
 14 #define check function
 15 function check_dir(){
 16 file_same_num=0
 17 file_update_num=0
 18 file_create_num=0
 19 file_rollback_num=0
 20 
 21 oldarray=()
 22 file_updated=()
 23 file_created=()
 24 file_rollback=()
 25 file_same=()
 26 
 27 for f_old in ${old_dir}/*
 28   do 
 29     f_old_mid=${f_old##/*/}
 30     oldarray+=(${f_old_mid%_*})
 31   done
 32 
 33 for new in ${new_dir}/*
 34   do 
 35     new_mid=${new##/*/}
 36     new_name=${new_mid%_*}
 37     new_version=${new_mid##*v}
 38 
 39     if [[ ! "${oldarray[*]}" =~ "${new_name}" ]];
 40     then 
 41     file_create_num=$((file_create_num+1))
 42     file_created+=(${new_mid})
 43     dir_file_created_new+=(${new})
 44     fi
 45 
 46     for old in ${old_dir}/*
 47       do
 48     old_mid=${old##/*/}
 49     old_name=${old_mid%_*}
 50     old_version=${old_mid##*v}
 51 
 52     if [ "${new_name}" = "${old_name}" -a "${new_version}" = "${old_version}" ];
 53         then 
 54       file_same_num=$((file_same_num+1))
 55       file_same+=(${new_mid})
 56        
 57     elif [ "${new_name}" = "${old_name}" -a "${new_version%-*}" \> "${old_version%-*}" ];
 58     then 
 59       file_update_num=$((file_update_num+1))
 60           file_updated+=(${new_mid})
 61       dir_file_updated_new+=(${new})
 62       dir_file_updated_old+=(${old})
 63 
 64     elif [ "${new_name}" = "${old_name}" -a "${new_version%-*}" \< "${old_version%-*}" ];
 65     then
 66       file_rollback_num=$((file_rollback_num+1))
 67       file_rollback+=(${new_mid})
 68        dir_file_rollback_new+=(${new})
 69       dir_file_rollback_old+=(${old})
 70     fi    
 71       done
 72   done
 73 }
 74 
 75 #define action function
 76 function action(){
 77 mkdir -p ${rubbish_ud}
 78 mkdir -p ${rubbish_rb}
 79 
 80 echo "Moving created files:"
 81 for i in ${dir_file_created_new[*]}
 82   do
 83     echo $i 
 84     cp $i ${old_dir}
 85   done
 86 echo -e "Done !!\n"
 87 sleep 1
 88 
 89 echo "Moving updated files:"
 90 for i in ${dir_file_updated_new[*]}
 91   do 
 92     echo $i
 93     cp $i ${old_dir}
 94   done
 95 echo -e "Done !!\n" 
 96 sleep 1
 97 
 98 echo "Backup old updated files:"
 99 for i in ${dir_file_updated_old[*]}
100   do 
101     echo $i
102     mv $i ${rubbish_ud}
103   done
104 echo -e "Done !!\n"
105 sleep 1
106 
107 echo "Moving rollback files:"
108 for i in ${dir_file_rollback_new[*]}
109   do
110     echo $i 
111     cp $i ${old_dir}
112   done
113 echo -e "Done !!\n"
114 sleep 1
115 
116 echo "Backup old rollback files:"
117 for i in ${dir_file_rollback_old[*]}
118   do
119     echo $i 
120     mv $i ${rubbish_rb}
121   done
122 echo "Done !!"
123 
124 chown -R weblogic:weblogic ${old_dir}/*
125 chmod 755 ${old_dir}/*
126 } 
127 
128 
129 #core procedure
130 echo "Confirm the former directory :"
131 sleep 1
132 echo -e "${old_dir}\n"
133 sleep 1
134 echo "confirm the later directory :"
135 sleep 1
136 echo -e "${new_dir}\n"
137 read -p "[Y/N]" dir
138 
139 if [ "${dir}" == "y" -o "${dir}" == "Y" ];
140   then
141   sleep 1 
142   check_dir
143   echo "==================================================================="
144   echo "same file: ${file_same_num}"
145   echo "Details : "
146   for i in ${file_same[*]}
147     do echo -e "${i}"
148     done
149   echo "-------------------------------------------------------------------"
150   sleep 1
151   echo "update file: ${file_update_num}"
152   echo "Details : "
153   for i in ${file_updated[*]}
154     do echo -e "${i}"
155     done
156   echo "-------------------------------------------------------------------"
157   sleep 1
158   echo "roll back file: ${file_rollback_num}"
159   echo "Details : "
160   for i in ${file_rollback[*]}
161     do echo -e "${i}"
162     done
163   echo "-------------------------------------------------------------------"
164   sleep 1
165   echo "create file: ${file_create_num}"
166   echo "These are : "
167   for i in ${file_created[*]}
168     do echo -e "${i}"
169     done
170   echo "==================================================================="
171   read -p "Press Y to continue,N to quit:[y/n]: " input_check
172   if [ "${input_check}" == "y" -o "${input_check}" == "y" ];
173     then
174       sleep 1 
175       action
176   elif [ "${input_check}" == "n" -o "${input_check}" == "N" ];
177     then exit
178   else echo "Please check your input."
179   fi    
180 elif [ "${dir}" == "n" -o "${dir}" == "N" ];
181   then echo "Modify directory in this scripy."
182 else
183   echo "Please check your input."
184 fi