将标题添加到制表符分隔的文件
问题描述：
我想将标题添加到制表符分隔的文件中，但是我不确定如何在linux中的一行中执行此操作.
I'd like to add a header to a tab-delimited file but I am not sure how to do it in one line in linux.
让我们说我的文件是:
roger\t18\tcolumbia\tnew york\n
albert\t21\tdartmouth\tnew london\n
etc...
现在我想添加一个标头，上面写着:
and now I'd like to add a header that says:
name\tage\tuniversity\tcity
我将如何在linux的一行中做到这一点?我对awk，sed，cat等没什么好感，但是对perl一点都不熟悉.
How would I do that in one line in linux? I am ok with awk, sed, cat, etc. not familiar at all with perl though.
答
没有像"append"运算符>>这样的"prepend"运算符，但是您可以将标头写入临时文件，然后复制之后将文件的内容放入临时文件，然后将其移回:
There isn't a "prepend" operator like the "append" operator >>, but you can write the header to a temp-file, copy your file's contents into the temp-file after that, and move it back:
echo -e "name\tage\tuniversity\tcity" | cat - yourfile > /tmp/out && mv /tmp/out yourfile