[shell script] - archive file script

demand

First of all, the directory for file archiving , Judge whether it exists . If there is , Then file , If it doesn't exist , Then it indicates that the directory cannot be archived , And point out that .

Points of attention

1） about tar command ,-f Parameter options should be put at the end , Otherwise, the following errors will occur

Code

Store the configuration file of the directory that needs to be archived ：

cat conf_file 

/root/tools
/root/software
/root/shell-ch
#  The directory does not exist 
/root/Dir_not_exist  

The script is implemented as follows ：

#!/bin/bash

DATE=$(date +%y%m%d)
FILE=archive$DATE.tar.gz
DESTINATION=/root/$FILE


[ ! -f conf_file ] && {
    
 echo "there is no conf_file"
 echo "Backup not completed due to missing Configuration File"
 echo 
 exit 1
}

FILE_NO=1
confs=`cat conf_file | grep -v "^#"`

for single in $confs
do
 #echo "$single"
 if [ -f $single -o -d $single ];then
  FILE_LIST="$FILE_LIST $single"
 else
  echo
  echo "$single,do not exist............"
  echo "It is on line $FILE_NO of the conf_file"
  echo
 fi
 FILE_NO=$[$FILE_NO + 1]
done

echo "FILE_LIST : $FILE_LIST"

echo "Starting archive............"
echo

tar -czf $DESTINATION $FILE_LIST 2> /dev/null

echo "Archive completed........."
echo "The archive file is: $DESTINATION "
echo