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使用 ls 和 stat

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使用 ls 和 stat

我已经编写了这个脚本，但是输出不正确。它返回 stat 无法统计没有这样的文件或目录。文件格式为Living Room-20180418-0955588134.jpg

任何帮助将不胜感激。

#!/bin/sh

LASTFILE=$(cd /volume1/surveillance/@Snapshot && ls *.jpg  | tail -1)



# Input file

# How many seconds before file is deemed "older"
OLDTIME=3600
# Get current and file times
CURTIME=$(date +%s)
FILETIME=$(stat "$LASTFILE" -c %Y)
TIMEDIFF=$(expr $CURTIME - $FILETIME)

# Check if file older
if [ $TIMEDIFF -gt $OLDTIME ]; then

echo "No Movement Dectected in Last Hour" ;
   exit 1
fi

答案1

使用 GNUfind或兼容：

if
  ! find /volume1/surveillance/@Snapshot -name '*.jpg' -mmin -60 |
    grep -q '^'
then
  echo No movement detected in the last hour
  exit 1
fi

或者与zsh：

last_hour=(/volume1/surveillance/@Snapshot/*.jpg(Nmh-1))
if (($#last_hour = 0)); then
  echo No movement detected in the last hour
  exit 1
fi

答案2

原因是因为“stat”看不到完整路径“/volume1/surveillance/@Snapshot/”。它只看到文件名。所以需要修改脚本。

#!/bin/sh
DIR=/volume1/surveillance/@Snapshot
LASTFILE=$(cd $DIR && ls *.jpg  | tail -1)

# Input file

# How many seconds before file is deemed "older"
OLDTIME=3600
# Get current and file times
CURTIME=$(date +%s)
FILETIME=$(stat $DIR/$LASTFILE -c %Y)
TIMEDIFF=$(expr $CURTIME - $FILETIME)

# Check if file older
if [ $TIMEDIFF -gt $OLDTIME ]; then

 echo "No Movement Dectected in Last Hour" ;
 exit 1
fi

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