Question

我想写，做以下简单的备份脚本：

#!/bin/bash 
#backupScript 

mysqldump mysql -uxxxxx -pxxxxx Database1 Database2 | gzip > "MainWordPress.gz" 

time_stamp = `date +%Y%m%d.%H%M` 
file_name = 'backup-{$time_stamp}.tar.gz' 
sources = 'DIR/ MainWordPress.gz' 
tar -cvf file_name sources 

rm MainWordPress.gz 

cp file_name some/destination 

但问题是，它不喜欢：

./runBackup.sh: line 6: time_stamp: command not found 
./runBackup.sh: line 7: file_name: command not found 
./runBackup.sh: line 8: sources: command not found 
tar: sources: Cannot stat: No such file or directory 
tar: Exiting with failure status due to previous errors 

我深感困惑......

Answer 1

删除等号周围的空间：

#!/bin/bash 
#backupScript 

mysqldump mysql -uxxxxx -pxxxxx Database1 Database2 | gzip > "MainWordPress.gz" 

time_stamp=$(date +%Y%m%d.%H%M) 
file_name="backup-${time_stamp}.tar.gz" 
sources='DIR/MainWordPress.gz' 
tar -cvf file_name sources 

rm MainWordPress.gz 

cp file_name some/destination 

Answer 2

删除空间wetween变量和=：

#!/bin/bash 
#backupScript 

mysqldump mysql -uxxxxx -pxxxxx Database1 Database2 | gzip > "MainWordPress.gz" 

time_stamp=`date +%Y%m%d.%H%M` 
file_name='backup-{$time_stamp}.tar.gz' 
sources='DIR/ MainWordPress.gz' 
tar -cvf file_name sources 

rm MainWordPress.gz 

cp file_name some/destination