有没有办法从终端中的文件末尾向后读取字符？

Question

例如，less 允许您从头开始逐行阅读。是否有类似的实用程序或行可以在终端中运行，可以逐个字符地向后显示文件？如果没有，一个“猫”之类的实用程序如何按字符向后显示整个文件？

Answer 1

这样做：

cat /tmp/aa | tac | rev

其中 tac 逐行反转文件，保持字符完整......然后 rev 通过简单地反转每个给定行的字符来完成它，保持逐行完整......所以例如：

cat /tmp/aa 


Is there a way to read characters backwards from the end of a file in the terminal?

For instance, less allows you to read line by line, starting from the beginning. Is there a similar utility or line that could be run in the terminal that could display a file backward character by character?



cat /tmp/aa | tac | rev


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lanimret eht ni elif a fo dne eht morf sdrawkcab sretcarahc daer ot yaw a ereht sI