从AWK字符串删除空间 [英] removing a space from a string by awk

问题描述

我如何删除使用AWK位于名和姓之间的一个字符串的空间？
大部分的例子是有关从命令行AWK重定向数据，但我需要处理一个awk脚本中的字符串。

How can I remove a space located between name and lastname from a string by using awk? most of the examples are about redirecting data from command line to awk but I need to manipulate a string inside an awk script.

此转换：

"steve john"

到

"stevejohn"

我有一个字符串变量，我要求用户输入一个awk脚本中。我需要把空格去掉。

I have a string variable which I asked user to input inside an awk script. I need to remove the spaces.

推荐答案

GSUB 是你的朋友。以下命令基本上做一个普通的前pression（在这种情况下，一个空格）的全局替换，用一个空字符串替换它，对目标 $ 1,0 （整行）。

gsub is your friend. The following command basically does a global substitution of a regular expression (a single space in this case), replacing it with an empty string, on the target $0 (the whole line).

pax> echo "steve john" | awk '{ gsub (" ", "", $0); print}'
stevejohn

您可以通过用户使用的任何目标，包括一个输入：

You can use any target, including one input by a user:

pax> awk 'BEGIN {getline xyzzy ; gsub(" ","", xyzzy) ; print xyzzy}'
hello there my name is pax
hellotheremynameispax

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