Question

这是find命令：

find . -name 'VPN_CALLRECORD_20140409*' -type f| xargs ls -lhrt |awk '{print $9}' > log.txt

这是我正在寻找的文件集，这些文件可以是7千个被导向'xargs'的文件，我只是列出第一部分，中间和最后一部分

-rw-rw-r-- 1 see  seegrp  100K Feb 12 00:00 VPN_CALLRECORD_20140409000000_000760000.txt
-rw-rw-r-- 1 see  seegrp  193K Feb 12 00:01 VPN_CALLRECORD_20140409000000_000760001.txt
.
.
-rw-rw-r-- 1 see  seegrp  193K Feb 12 10:03 VPN_CALLRECORD_20140409174500_000764500.txt
.
.
-rw-rw-r-- 1 see  seegrp   95K Feb 12 23:59 VPN_CALLRECORD_20140409235500_000766488.txt
-rw-rw-r-- 1 see  seegrp  103K Feb 12 23:59 VPN_CALLRECORD_20140409235500_000766489.txt

以后这是压缩的焦油：

tar -czf cdr_backup.tar.gz -T log.txt

使用这种方式执行日志时出现问题，因为log.txt文件上的结果未正确排序，我认为这是因为某些xargs限制

代码：

number=$(more log.txt |wc -l)
echo "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++">>log_after_cdr_backup.txt
echo "Start Time : $DATETIME">>log_after_cdr_backup.txt
echo "Tar file created: $FILE">>log_after_cdr_backup.txt
echo "Tar file contains $number CDRs backed up successfully">>log_after_cdr_backup.txt
firstline=$(head -n 1 log.txt)
echo "from this sequence $firstline ">>log_after_cdr_backup.txt
lastline=$(tail -1 log.txt)
echo "to this one $lastline">>log_after_cdr_backup.txt
echo "Finish Time : $FINISHTIME">>log_after_cdr_backup.txt
echo "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++">>log_after_cdr_backup.txt

生成的输出：

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Start Time : 20140410 15:16:24
Tar file created: cdr_backup.tar.gz
Tar file contains 7720 CDRs backed up successfully
from this sequence ./VPN_CALLRECORD_20140409000000_000741343.txt
to this one ./VPN_CALLRECORD_20140409174500_000764500.txt
Finish Time : 20140410 15:23:42
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

请注意，最后一个序列不应该是

VPN_CALLRECORD_20140409235500_000766489.txt

为什么呢？我不确定，我试图在log.txt文件中对结果进行排序，所以这个

lastline=$(tail -1 ${TEMPFILE})

可以工作，但这是不可能的，你知道为什么吗？

Answer 1

Xargs将分割传入参数的数量，以避免创建太长的命令行。此外，“查找”的输出不会以任何方式排序。如果要排序，请在管道中插入“排序”调用（例如，在结尾处。）

由find命令给出的排序结果

1 个答案: