使用Bash脚本编辑文本文件

时间:2013-08-15 11:08:36

标签: bash sed awk

我的文件格式如下:

axel localhost> localhost>
mike localhost> STORAGE 298390/512000 (58.279296875%) localhost>
ab localhost> STORAGE 141361/512000 (27.6095703125%) localhost>
fghi localhost> localhost>
abcd localhost> STORAGE 165929/512000 (32.4080078125%) localhost>
lmno localhost> STORAGE 353073/512000 (68.9595703125%) localhost>
nuon localhost> localhost>
spar localhost> STORAGE 203766/512000 (39.798046875%) localhost>
fibo localhost> STORAGE 238204/512000 (46.52421875%) localhost>
nacci localhost> STORAGE 425737/512000 (83.1517578125%) localhost>
seldom localhost> STORAGE 69894/512000 (13.651171875%) localhost>
project localhost> STORAGE 86220/512000 (16.83984375%) localhost>
eccleston localhost> STORAGE 240084/512000 (46.89140625%) localhost>
swan localhost> STORAGE 279522/512000 (54.594140625%) localhost>

这是listquota在cyradm(Cyrus-imapd)中生成的输出。我有两个问题;

  • 在那些localhost> localhost>的行中,第一个单词应写入另一个文件,该行应删除。
  • 对于其他行,需要删除第二列,第三列和最后一列。

我将如何实现这一结果?

修改

预期输出

mike 298390/512000 (58.279296875%)
ab 141361/512000 (27.6095703125%)
abcd 165929/512000 (32.4080078125%)
lmno 353073/512000 (68.9595703125%)
spar 203766/512000 (39.798046875%)
fibo 238204/512000 (46.52421875%)
nacci STORAGE 425737/512000 (83.1517578125%)

到目前为止,我的循环看起来像是:

while read thisline; do
    if [ $2 == "localhost>" AND $3 == "localhost>" ];then
        echo $1 >>/root/names.txt
        sed '1d' filename.txt #but this deletes only the first line
    fi

done

1 个答案:

答案 0 :(得分:3)

试试这个:

awk '/localhost> localhost>/{print $1 >"file2";next}{$2=$3=$NF=""}7' file

这将输出您想要的文本,并为localhost> localhost>案例生成“file2”。

没有测试,我希望没有错字。