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BASH 脚本中的奇怪错误

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BASH 脚本中的奇怪错误

我正在尝试修复这个我一直看到的错误，但我不知道为什么会看到它们。该脚本生成超过 7 天的文件列表，然后将它们 tar/gzip 到备份目录中。最后，它会在备份成功完成后删除这些文件。我遇到了一个奇怪的错误。该脚本很简单，大部分是为了防止脚本运行两次或挂起，或者它处理日志记录。重要的代码在星号之间。

#!/bin/bash
#
#
#       Title:          fwdCleanup.sh
#       Author:         Matthew Sarro
#       Date:           03/07/2012
#       Desc:           Backs up all files down the tree which are
#                       older than 7 days
#
#
#
#
DATE=`date +%F-%H%M`

LOGFILE=/root/testing/fwdcleanuplogs/$DATE.log
exec 3<>$LOGFILE
exec >&3 2>&3

#define the name of the lockfile
LOCKFILE='/root/testing/fwdcleanup.pid'

# check for existing lockfile
if [ -e "$LOCKFILE" ]; then
# lockfile exists
        #check if file is readable
   if [ ! -r "$LOCKFILE" ]; then
      echo error: lockfile is not readable
      exit 1
   fi

#define PID as the process number in lockfile
   PID=`cat "$LOCKFILE"`
# check if process is signal-able and redirect stderr to /dev/null
   kill -0 "$PID" 2>/dev/null
#if process was signal-able echo an error
   if [ $? == 0 ]; then
      echo error: existing instance of this task is already running
      exit 1
   fi

# process that created lockfile is no longer running - delete lockfile
   rm -f "$LOCKFILE"
#check if lockfile deleted properly
   if [ $? != 0 ]; then
      echo error: failed to delete lockfile
      exit 1
   fi
fi

# create lockfile containing current process ID
echo $$ >"$LOCKFILE"
if [ $? != 0 ]; then
   echo error: failed to create lockfile
   exit 1
fi

#************************
#EDIT IN HERE
#find all files older than 7 days and create a file list
find /root/testing/{MSP,CEMP} -mtime +7 -type f > /root/testing/fwdcleanuplogs/$DATE.list

#add all files from the file list into a tar.gz file
tar -czf /root/testing/backups/$DATE.tar.gz --files-from /root/testing/fwdcleanuplogs/$DATE.list

#delete all files from the file list off disk
rm -f `cat /root/testing/fwdcleanuplogs/$DATE.list`
*************************

# delete lockfile
rm -f "$LOCKFILE"
if [ $? != 0 ]; then
   echo error: failed to delete lockfile
   exit 1
fi

exec 3>&-
exit 0

当我运行脚本时，生成的日志中显示以下内容：

./fwdCleanup.sh: line 67: backups: command not found

我不知道为什么会出现这种情况 - 我似乎无法弄清楚。代码仍然执行得非常好，但错误让我抓狂。我在第 67 行中看不到任何可以告诉操作系统备份是一个命令的东西。

如有任何建议，我将不胜感激。

编辑：在任何人注意到之前：这是在测试虚拟机上完成的，因此使用了 root 帐户:)

答案1

第 67 行*************************应该#以 开头。第一个行*由您的 shell 展开，并拾取backups当前目录中调用的文件。

答案2

使用-xbash 选项来跟踪脚本正在做什么。这样您就可以很好地了解哪里出了问题。

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