“当前时间"输出为零 [英] "Current time" outputs as zero

问题描述

我正在尝试从file1输入到file2，以便file2中的每一行是每条file1行的第一字段，后跟一个空格和当前时间.

I am trying to input tofile2 from file1 so that each line in file2 is the first field of each file1 line, followed by a space and the current time.

例如

IN-X_4096_20140802_121306_007 `random text`
IN-X_4096_20140802_133431_012 `random text`
IN-A_6046_20130613_165426 `random text`
IN-A_6046_20130613_165426 `random text`
IN-X_4096_20140802_133431_014 `random text`

成为

IN-X_4096_20140802_121306_007 14:24:32
IN-X_4096_20140802_133431_012 14:24:32
IN-A_6046_20130613_165426 14:24:32
IN-A_6046_20130613_165426 14:24:32
IN-X_4096_20140802_133431_014 14:24:32

但是我得到的是

IN-X_4096_20140802_121306_007 0
IN-X_4096_20140802_133431_012 0
IN-A_6046_20130613_165426 0
IN-A_6046_20130613_165426 0
IN-X_4096_20140802_133431_014 0

我正在使用的代码是:

awk '{b=$1" "date +"%r"; print b >"file2.csv" }' file1.csv

当我使用％T"时也会发生同样的事情

The same thing happens when I use "%T"

推荐答案

从您的问题尚不清楚您期望的是哪种行为，但这是两种Gnu awk解决方案:

From your question it is not clear which behaviour you are expecting, but here are two Gnu awk solutions:

1. 在整个命令运行期间，计算出的日期时间字符串必须恒定:

1. The computed date-time string has to be constant during the entire run of the command:

awk 'BEGIN{t=strftime("%r")}{ print $1,t }' file1.csv > file2.csv 

计算出的日期时间字符串必须每行更新:

The computed date-time string has to be updated per line:

awk '{ print $1,strftime("%r") }' file1.csv > file2.csv

这篇关于“当前时间"输出为零的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！