我正在尝试编写一个执行以下操作的简单备份脚本：
#!/bin/bash
#backupScript
mysqldump mysql -uxxxxx -pxxxxx Database1 Database2 | gzip > "MainWordPress.gz"
time_stamp = `date +%Y%m%d.%H%M`
file_name = 'backup-{$time_stamp}.tar.gz'
sources = 'DIR/ MainWordPress.gz'
tar -cvf file_name sources
rm MainWordPress.gz
cp file_name some/destination
但问题在于它不喜欢：
./runBackup.sh: line 6: time_stamp: command not found
./runBackup.sh: line 7: file_name: command not found
./runBackup.sh: line 8: sources: command not found
tar: sources: Cannot stat: No such file or directory
tar: Exiting with failure status due to previous errors
我深感困惑...
删除等号周围的空格：
#!/bin/bash
#backupScript
mysqldump mysql -uxxxxx -pxxxxx Database1 Database2 | gzip > "MainWordPress.gz"
time_stamp=$(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
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