perl或sed命令查找2个字符串并将第一个字符串替换为字符串2

时间:2019-02-19 15:51:47

标签: regex shell perl sed

我有多个文本如下的文件。

文件1的内容

Begin("tmp1","derived from file \"/disks/setup/ORIG_FILE1.txt\"");

文件2的内容:

Begin("tmp1","derived from file \"/disks/setup/ORIG_FILE2.txt\"");

文件3的内容:

Begin("tmp9","derived from file \"/disks/setup/ORIG_FILE4.txt\"");

以此类推.....

perl或sed中是否有任何命令来查找带有“ Begin”的行,并在该行中搜索“ ...”(即本例中的“ tmp1”)之间的第一个字符串并将其存储在变量中,然后搜索/ .. \“”之间的最后一个字符串(即ORIG_FILE1.txt),并将其存储在变量2中,然后从变量2中删除“ .txt”,然后将变量1替换为变量2并更新文件。

所以输出文件如下:

文件1的内容

Begin("ORIG_FILE1","derived from file \"/disks/setup/ORIG_FILE1.txt\"");

文件2的内容:

Begin("ORIG_FILE2","derived from file \"/disks/setup/ORIG_FILE2.txt\"");

文件3的内容:

Begin("ORIG_FILE4","derived from file \"/disks/setup/ORIG_FILE4.txt\"");

以此类推.....

有人可以在这里帮助我吗?

3 个答案:

答案 0 :(得分:0)

尝试一下:

perl -i.bak -pe '
    if (/.*\/(.+)\.txt/) {
        $file = $1;
        s/(?<=").*?(?=")/$file/
    }
' file1 file2 file3 ...

这将首先捕获“ orig”文件名(假设它们都具有“ .txt”扩展名),然后替换“ tmp”占位符。

答案 1 :(得分:0)

在任何UNIX盒中的任何外壳中使用任何sed:

$ sed 's/\([^"]*"\)[^"]*\(.*\/\([^.]*\)\)/\1\3\2/' file
Begin("ORIG_FILE1","derived from file \"/disks/setup/ORIG_FILE1.txt\"");
Begin("ORIG_FILE2","derived from file \"/disks/setup/ORIG_FILE2.txt\"");
Begin("ORIG_FILE4","derived from file \"/disks/setup/ORIG_FILE4.txt\"");

答案 2 :(得分:0)

通过gnu sed作为您在“ d”中的数据,

 sed -E 's~^(Begin\(")\w+(".+/)(\w+)(\.\w+\\""\);)~\1\3\2\3\4~' d
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