☰

Rsync bash 脚本错误（发送：未找到命令）

tag-icon • tag-icon shell-script rsync
Rsync bash 脚本错误（发送：未找到命令）

我的服务器有一个大部分有效的备份脚本。只有 rsync 命令在日志中抛出错误，我找不到解决方案。

这是部分我的脚本（我删除了工作内容）：

#!/bin/bash

TIMESTAMP=`date +%Y%m%d_%H%M`
BKROOT="/home/roots/backups"
BKDIR="/home/roots/backups/$TIMESTAMP"

LOG="$BKROOT/backup_$TIMESTAMP.log"

function log () 
{
    now=$(date +"%T")
    echo -e "$now: $1"
}

echo -e "Starting backup..."

if [ ! -d "$BKDIR" ]; then
        echo -e "Creating Backup directory $BKDIR..."
        mkdir -p $BKDIR
        mkdir -p $BKDIR/games
        mkdir -p $BKDIR/games/minecraft
fi

# Redirect all output to log
exec >> $LOG 
exec 2>&1

log "Saving Minecraft..."
`/usr/bin/rsync -av /var/games/minecraft $BKDIR/games/minecraft --exclude 'plugins/dynmap/web'`
log

# Sleeping 10 seconds to allow file access
sleep 10

# Compressing backup
log "Compressing backup to $BKROOT/backup_$TIMESTAMP.tar.gz..."
`/bin/tar czvfP $BKROOT/backup_$TIMESTAMP.tar.gz "$BKDIR"`
if [[ $? != 0 ]]; then
    log "Error during compression"
else 
    log "Compression OK"
fi

# Uploading backup to Backup storage
log "Uploading backup and log to Backup storage..."
`/usr/bin/scp $BKROOT/backup_$TIMESTAMP.tar.gz [email protected]:/`
if [[ $? != 0 ]]; then
    log "Error during upload of backup"
else 
    log "Uploading of backup OK"
fi
`scp $LOG [email protected]:/`
if [[ $? != 0 ]]; then
    log "Error during upload of backup log"
else 
    log "Uploading of backup log OK"
fi
log

TIMEEND=`date "+%m/%d/%Y @ %H:%M"`

# Logging free space on backup location
echo 'df -h' | sftp [email protected]

# Sending mail
`echo "Done" | mutt -s "Backup completed on $TIMEEND" -i $LOG [email protected]`

# Removing backup folder
echo -e "Removing temporary folder"
log "Removing temporary folder..."
`rm $BKDIR -rf`

该脚本通过 cronjob 以 root 身份运行。除了 rsync 命令之外，一切工作正常。他们每个人都将以下错误写入日志文件：

20:19:38：保存 Minecraft...
/home/roots/scripts/backup.sh：第 126 行：发送：未找到命令
20:21:07：
20:21:40：www 数据文件
/home的备份/roots/scripts/backup.sh：第 141 行：发送：未找到命令
/home/roots/scripts/backup.sh：第 142 行：发送：未找到命令
20:22:58：
20:23:03：正在复制 FHEM备份
/home/roots/scripts/backup.sh：第 157 行：发送：找不到命令

除了源路径和目标路径之外，所有 4 个 rsync 命令都具有完全相同的参数。

服务器运行 Ubuntu 16.04.2 LTS (Xenial Xerus)。

有人知道我做错了什么吗？

答案1

你有这样的行：

`/usr/bin/rsync -av /var/games/minecraft $BKDIR/games/minecraft --exclude 'plugins/dynmap/web'`

反引号的意思是执行命令的输出在他们之间。所以rsync命令运行，创建一些输出，shell尝试执行该输出。只需删除反引号即可：

/usr/bin/rsync -av /var/games/minecraft $BKDIR/games/minecraft --exclude 'plugins/dynmap/web'

相关内容