Linux定义变量脚本分享

vi back.sh
#backup import file,such as /etc/rc.local /var/spool/cron/root
IP=$(ifconfig eth1|sed -nr '2s#.*addr:(.*) B.*#\1#gp')
Path=/backup
if [ $(date +%w) -eq 0 ]
then
  Time=$(date +%F-%w -d "-1 day")
else
  Time=$(date +%F "-1 day")
fi
mkdir $Path/$IP -p
cd / &&tar zcfh $Path/$IP/backup_$Time.tar.gz var/spool/cron/root etc/rc.local etc/sysconfig/iptables var/www/html app/logs &&md5sum $Path/$IP/backup_$Time.tar.gz >$Path/$IP/flag_$Time.log &&rsync -azv $Path/ rsync_backup@172.16.1.41::backup --password-file=/etc/rsyncd.password &&find $Path/ -type f \( -name "*.log" -o -name "*.tar.gz" \) -mtime +7 |xargs rm –f
"back.sh" 15L, 628C written

vi back.sh
#backup import file,such as /etc/rc.local /var/spool/cron/root
IP=$(ifconfig eth1|sed -nr '2s#.*addr:(.*) B.*#\1#gp')
Path=/backup
if [ $(date +%w) -eq 0 ]
then
  Time=$(date +%F-%w -d "-1 day")
else
  Time=$(date +%F "-1 day")
fi
mkdir $Path/$IP -p
cd / &&tar zcfh /backup/$IP/backup_$Time.tar.gz var/spool/cron/root etc/rc.local etc/sysconfig/iptables var/www/html app/logs &&md5sum $Path/$IP/backup_$Time.tar.gz >$Path/$IP/flag_$Time.log &&rsync -azv $Path/ rsync_backup@172.16.1.41::backup --password-file=/etc/rsyncd.password &&find $Path/ -type f \( -name "*.log" -o -name "*.tar.gz" \) -mtime +7 |xargs rm –f
"back.sh" 15L, 628C written

[root@nfs01 scripts]# sh -x back.sh 
++ sed -nr '2s#.*addr:(.*) B.*#\1#gp'
++ ifconfig eth1
+ IP=172.16.1.31
+ Path=/backup
++ date +%w
+ '[' 4 -eq 0 ']'
++ date +%F -d '-1 day'
+ Time=2017-12-20
+ mkdir /backup/172.16.1.31 -p
+ cd /
+ tar zcfh /backup/172.16.1.31/backup_2017-12-20.tar.gz var/spool/cron/root etc/rc.local etc/sysconfig/iptables var/www/html app/logs
+ md5sum /backup/172.16.1.31/backup_2017-12-20.tar.gz
+ rsync -azv /backup/ rsync_backup@172.16.1.41::backup --password-file=/etc/rsyncd.password
sending incremental file list
172.16.1.31/backup_2017-12-20.tar.gz
172.16.1.31/flag_2017-12-20.log

sent 1128 bytes received 65 bytes 2386.00 bytes/sec
total size is 2960 speedup is 2.48
+ xargs rm -f
+ find /backup/ -type f '(' -name '*.log' -o -name '*.tar.gz' ')' -mtime +7