我有这样一个文件:
name: xxx --- time: 5.4 seconds
name: yyy --- time: 3.2 seconds
name: zzz --- time: 6.4 seconds
...
现在我想按这些浮点数对该文件进行排序以生成一个新文件,如下所示:
name: yyy --- time: 3.2 seconds
name: xxx --- time: 5.4 seconds
name: zzz --- time: 6.4 seconds
...
我已经尝试过该命令awk '{print $5}' myfile | sort -g
,但这只会显示浮点数。
答案1
如果使用 GNUsort
或兼容版本,您可以使用其-g
开关进行一般数字排序:
$ sort -g -k5,5 file
name: yyy --- time: 3.2 seconds
name: xxx --- time: 5.4 seconds
name: zzz --- time: 6.4 seconds
告诉-k5,5
sort 仅对第五列执行排序。
用法
请记住info sort
页面中的详细信息:
'-g' '--general-numeric-sort' '--sort=general-numeric' Sort numerically, converting a prefix of each line to a long double-precision floating point number. *Note Floating point::. Do not report overflow, underflow, or conversion errors. Use the following collating sequence: * Lines that do not start with numbers (all considered to be equal). * NaNs ("Not a Number" values, in IEEE floating point arithmetic) in a consistent but machine-dependent order. * Minus infinity. * Finite numbers in ascending numeric order (with -0 and +0 equal). * Plus infinity. Use this option only if there is no alternative; it is much slower than '--numeric-sort' ('-n') and it can lose information when converting to floating point.