shell文本文件的处理（2）
时间：2007-05-17 来源：zhouliming9
1、在文本每行前增加一行
文本a.txt
line1 table1
line2 table2 line1 table3
line2 table4
要求每一行修改成
print table1
line1 table1
print table2
line2 table2
print table3
line3 table3
print table4
line4 table4 方法： cat a.txt |awk 'BEGIN{FS=""}{for(i=1;i<=NF;i++)print $(i)}' | awk '{print "print " $2 "\n" $1 " "$2}' 或者： cat a.txt |awk '{print "print "$2"\n" $0}'
sed 'h;s/[^ ]*/print/;G'
sed 's/\([^ ]*\) .*$/print \1\n&/' 2、从文本tt.txt 2007-04-29 15:41:54 [Debug][NULL] Param URL:http://www.chinaunix.com
2007-04-29 15:41:54 [Debug][NULL] 02. range:bytes=45-491
2007-04-29 15:41:54 [Debug][NULL] 09. dtuserid:ddddddddddddddddddddddd
2007-04-29 15:41:54 [Debug][NULL] Param URL:http://bbs.chinaunix.com
2007-04-29 15:41:54 [Debug][NULL] 04. range:bytes=0-321
2007-04-29 15:41:54 [Debug][NULL] 07. dtuserid:aaaaaaaaaaaaaaaaaaaaaaa 上面的日志3行为一组，当range:bytes＝0-*时，取Param URL的值和dtuserid的值
上面的日志，我最终想要的结果是 2007-04-29 15:41:54 http://bbs.chinaunix.com aaaaaaaaaaaaaaaaaaaaaaa 方法： tt=xx.txt
a=`awk '/dtuserid:aaaaaaaaaaaaaaaa/ {print NR}' $tt`
b=`awk '/dtuserid:aaaaaaaaaaaaaaaa/ {print NR-2}' $tt`
sed -n ${b},${a}p $tt >abc.txt
c=`cat abc.txt |awk '{print $1" "$2}'|uniq`
d=`grep "Param URL" abc.txt |awk -F ':' '{print $4":"$5}'`
e=`grep dtuserid abc.txt |awk -F ':' '{print $4}'`
echo $c $d $e
rm abc.txt
line1 table1
line2 table2 line1 table3
line2 table4
要求每一行修改成
print table1
line1 table1
print table2
line2 table2
print table3
line3 table3
print table4
line4 table4 方法： cat a.txt |awk 'BEGIN{FS=""}{for(i=1;i<=NF;i++)print $(i)}' | awk '{print "print " $2 "\n" $1 " "$2}' 或者： cat a.txt |awk '{print "print "$2"\n" $0}'
sed 'h;s/[^ ]*/print/;G'
sed 's/\([^ ]*\) .*$/print \1\n&/' 2、从文本tt.txt 2007-04-29 15:41:54 [Debug][NULL] Param URL:http://www.chinaunix.com
2007-04-29 15:41:54 [Debug][NULL] 02. range:bytes=45-491
2007-04-29 15:41:54 [Debug][NULL] 09. dtuserid:ddddddddddddddddddddddd
2007-04-29 15:41:54 [Debug][NULL] Param URL:http://bbs.chinaunix.com
2007-04-29 15:41:54 [Debug][NULL] 04. range:bytes=0-321
2007-04-29 15:41:54 [Debug][NULL] 07. dtuserid:aaaaaaaaaaaaaaaaaaaaaaa 上面的日志3行为一组，当range:bytes＝0-*时，取Param URL的值和dtuserid的值
上面的日志，我最终想要的结果是 2007-04-29 15:41:54 http://bbs.chinaunix.com aaaaaaaaaaaaaaaaaaaaaaa 方法： tt=xx.txt
a=`awk '/dtuserid:aaaaaaaaaaaaaaaa/ {print NR}' $tt`
b=`awk '/dtuserid:aaaaaaaaaaaaaaaa/ {print NR-2}' $tt`
sed -n ${b},${a}p $tt >abc.txt
c=`cat abc.txt |awk '{print $1" "$2}'|uniq`
d=`grep "Param URL" abc.txt |awk -F ':' '{print $4":"$5}'`
e=`grep dtuserid abc.txt |awk -F ':' '{print $4}'`
echo $c $d $e
rm abc.txt
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