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<p><FONT class=normalfont><B><font color=blue>awk中如何用print输出单引号</font></B></FONT><BR><FONT class=smallfont color=#ff9900>2004-04-23 15:18 pm</FONT><BR><FONT class=normalfont>作者：作者<br>来自：Linux知识宝库<br>联系方式：无名<br><br>用转义好像不行耶！<br>
如：<br>
echo "something" | awk '{print "'"}'<br>
时提示输入下一行，但下一行输入"<br>
报错：<br>
awk: cmd. line:1: {print "}'<br>
awk: cmd. line:1: ^ unterminated string<br>
谁来帮小弟一把！<br>
<br>
突然想到一个办法：<br>
echo "aa" | awk '{print " 47"}'<br>
似乎可读性有些差！<br>
<br>
echo "'"|awk '{print $0}'<br>
<br>
cat /dev/null|awk "BEGIN{print "'"}"<br>
<br>
忘了是在坛子里篇文章上看到过的，说是这样也可以<br>
cat filename | awk "{printf "Var1='%s',Var2='%s'",$1,$2}"<br>
记不太清，不知对不对？<br>
今天试了下，果然不对，应该这样<br>
cat filename | awk "{printf "Var1='%s',Var2='%s'",$1,$2}"<br>
<br>
cat /dev/null|awk "BEGIN{print "'"}"<br>
<br>
cat /dev/null 是做何用？<br>
cat /dev/null|awk "BEGIN{print "'"}" 在csh下通不过！<br>
<br>
有老版本的awk没有输入会等待.<br>
新版本的awk直接用BEGIN就可以了.<br>
可以在自己的系统上测一下。<br>
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