我有包含类似数据的文件,我试图以类似的方式排列这些数据,下面是详细信息。我根据上下文中的变量修改了脚本,无法获得所需的结果。可能是由于我缺乏对 awk 的了解以及对脚本编写的了解有限。
Virtual_Machine OL6U6
Vdisk 0004fb00001200005e2ca2d2c7fc2d6f.img size 46GB
Vdisk 0004fb0000120000597ab28f2b6493f8.img size 51GB
Vdisk 0004fb00001200003edc9a2ae9cd5aa6.img size 31GB
Physical_Disk IBM (796)
device /dev/mapper/dm-0
shareddisk true
Physical_Disk IBM (829)
device /dev/mapper/dm-1
shareddisk true
Physical_Disk IBM (830)
device /dev/mapper/dm-2
shareddisk true
Physical_Disk IBM (742)
device /dev/mapper/dm-3
shareddisk true
我正在尝试以下面的格式获取它。这里我们有两个条件。 M = 物理磁盘数量 N = V磁盘数量 如果 M > N,Virtual_Machine 的行数 = M 如果 M < N,Virtual_Machine 的行数 = N
Virtual Machine Vdisk size Physical_Disk device shareddisk
OL6U6 0004fb00001200005e2ca2d2c7fc2d6f.img 46GB IBM (796) /dev/mapper/dm-0 true
OL6U6 0004fb0000120000597ab28f2b6493f8.img 51GB IBM (829) /dev/mapper/dm-1 true
OL6U6 0004fb00001200003edc9a2ae9cd5aa6.img 31GB IBM (830) /dev/mapper/dm-2 true
OL6U6 - - IBM (742) /dev/mapper/dm-2 true
请指教。
问候, 达山
答案1
您可以使用 awk 来完成此操作,方法是维护书名和年份以及论文的数组。在您的示例中,论文没有年份,因此它们只是作为标题列在第二列中。
这是一个例子:
#!/usr/bin/awk -f
function finish() {
rows = book;
if (rows < paper) rows = paper;
for (n = 0; n <= rows; ++n) {
printf "%-15s %-25s %-8s %s\n",
author,
n <= book ? books[n] : "-",
n <= book ? years[n] : "-",
n <= paper ? papers[n] : "-";
}
book = -1;
paper = -1;
}
BEGIN {
author = "?";
book = -1;
paper = -1;
printf "Author Books year Papers\n";
}
/^[[:space:]]*Author[[:space:]]/ {
finish();
author = $0;
sub("^[^[:space:]]+[[:space:]]+", "", author);
sub("[[:space:]]+$", "", author);
next;
}
/^[[:space:]]*(e)?paper[[:space:]]/ {
++paper;
item = $0;
sub("^[^[:space:]]+[[:space:]]+", "", item);
sub("[[:space:]]+$", "", item);
papers[paper] = item;
next;
}
/^[[:space:]]*([eE])?[bB]ook[[:space:]].*year[[:space:]]+[[:digit:]]+[[:space:]]*$/ {
++book;
item = $0;
sub("^[^[:space:]]*[[:space:]]*", "", item);
sub("[[:space:]]+$", "", item);
title = item;
sub("[[:space:]]*year[[:space:]]+[[:digit:]]+$", "", title);
year = item;
sub("^.*year[[:space:]]+", "", year);
books[book] = title;
years[book] = year;
next;
}
END {
finish();
}
与输出:
$ ./foo <foo.in
Author Books year Papers
E. Narayanan Astrophysics 2001 Intelligent Transportation
E. Narayanan General Mechanics 2010 Nanotechnology Magazine
E. Narayanan Nuclear physics 2011 -
R Ramesh Organic Chemistry 2007 Ionic Batteries
R Ramesh Physical chemistry 2008 solar photocatalytic oxidation processes
R Ramesh - - Biological oxidation