在 bash 中提取日志文件的第二行时出现问题

如何解决在 bash 中提取日志文件的第二行时出现问题

我有以下脚本，如果备份完成，我想用它向我发送电子邮件。一切正常，我收到了电子邮件，但由于某种原因，我在获取日志文件的第二行时遇到问题，我试图将其设置为主题行。 在示例中，第二行是

备份成功完成

但不是在我的消息中将其显示为主题，我只得到备份，然后电子邮件也成功发送并完成。所以不确定是什么原因造成的。

#!/bin/bash

#Specify Base Dir for Log
MYPATH="/home/log"

#Create Variable MYFile with current Date
MYFILE=$MYPATH/backupcron-$(date +\%Y-\%m-\%d_\%H:\%M:\%s).log

#Backup Cluster
/opt/couchbase/bin/cbbackupmgr backup -c 127.0.0.1 -u Administrator -p Password -a /media/backup/couch -r CMR-CRM > $MYFILE

# Read the File into STR
STR=$(cat $MYFILE)

#Get the 2nd Line of Log File as Subject
SUBJECT=$(sed -n '2p' < $MYFILE)

# Send Email via Mutt
echo "$STR" | mutt -s $SUBJECT -a $MYFILE -e 'my_hdr From:COUCHBACKUP <couchbase@intra>' -- [e-mail]

这是我尝试从中获取第二行的日志文件的样子

Warning: Progress bar disabled because terminal width is less than 80 characters
Backup successfully completed
Backed up bucket "Contacts" succeeded
Mutations backed up: 0,Mutations Failed to backup: 0
Deletions backed up: 0,Deletions Failed to backup: 0
Skipped due to purge number or conflict resolution: Mutations: 0 Deletions: 0
Backed up bucket "SOAPAPI" succeeded
Mutations backed up: 0,Deletions Failed to backup: 0
Skipped due to purge number or conflict resolution: Mutations: 0 Deletions: 0
Backed up bucket "default" succeeded
Mutations backed up: 0,Deletions Failed to backup: 0
Skipped due to purge number or conflict resolution: Mutations: 0 Deletions: 0
Backed up bucket "mail_store" succeeded
Mutations backed up: 18,Deletions Failed to backup: 0
Skipped due to purge number or conflict resolution: Mutations: 0 Deletions: 0
Backed up bucket "mls" succeeded
Mutations backed up: 0,Deletions Failed to backup: 0
Skipped due to purge number or conflict resolution: Mutations: 0 Deletions: 0
Backed up bucket "rets" succeeded
Mutations backed up: 6042,Deletions Failed to backup: 0
Skipped due to purge number or conflict resolution: Mutations: 0 Deletions: 0
Backed up bucket "vodex" succeeded
Mutations backed up: 0,Deletions Failed to backup: 0
Skipped due to purge number or conflict resolution: Mutations: 0 Deletions: 0