本文介绍了一个使用Shell脚本处理.dat文件的具体实例。该脚本通过一系列命令实现对.dat文件的读取、修改和保存，包括去除特定行、统计行数等操作。
for x in `ls *.dat`
do
fileName=${x}
echo "$fileName"
case ${x} in (*.dat)
cat ${x}|sed 's/^[LINEDT]*//' $fileName > temp
mv temp ${x}
line=`wc -l ${x}|awk '{print $1}'`
echo $line
echo $fileName
echo ${x}
cat ${x}|sed $line'd' $fileName >temp
mv temp ${x}
cat ${x}|sed '1d' $fileName >temp
mv temp ${x}
esac
done
do
fileName=${x}
echo "$fileName"
case ${x} in (*.dat)
cat ${x}|sed 's/^[LINEDT]*//' $fileName > temp
mv temp ${x}
line=`wc -l ${x}|awk '{print $1}'`
echo $line
echo $fileName
echo ${x}
cat ${x}|sed $line'd' $fileName >temp
mv temp ${x}
cat ${x}|sed '1d' $fileName >temp
mv temp ${x}
esac
done
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