现在看起来像:
xmin = 0
xmax = 15.393970521541949
xmin = 15.393970521541949
xmax = 27.58997052154195
xmin = 27.58997052154195
xmax = 46.05797052154195
xmin = 46.05797052154195
xmax = 65.67797052154194
xmin = 65.67797052154194
xmax = 81.08048969617173
xmin = 81.08048969617173
xmax = 82.7959410430839
应该看起来像:
0 15.39
15.39 27.59
27.59 46.06
46.06 65.68
.
.
.
嗨我有.txt文件,我只用命令:
过滤了这个xmin,xmax数字sed -n '16,$p' info.txt | grep "xmin\|xmax"
我知道如何仅显示数字,但我不知道如何舍入这些数字并将它们分成2列。结果看起来应该是示例。
答案 0 :(得分:3)
awk可以轻松完成:
awk '{printf "%.2f%s",$3,!(NR%2)?"\n":FS}' file
以你的例子:
kent$ cat f
xmin = 0
xmax = 15.393970521541949
xmin = 15.393970521541949
xmax = 27.58997052154195
xmin = 27.58997052154195
xmax = 46.05797052154195
xmin = 46.05797052154195
xmax = 65.67797052154194
xmin = 65.67797052154194
xmax = 81.08048969617173
xmin = 81.08048969617173
xmax = 82.7959410430839
kent$ awk '{printf "%.2f%s",$3,!(NR%2)?"\n":FS}' f
0.00 15.39
15.39 27.59
27.59 46.06
46.06 65.68
65.68 81.08
81.08 82.80
答案 1 :(得分:1)
awk '{printf("%.2f ", $NF)} !(NR%2){printf("\n")}' File
使用格式说明符($NF
)打印每行中的最后一个字段(%.2f
)。在每newline
行之后打印second
。
答案 2 :(得分:0)
my $mi,$ma;
while (<>) {
if (/xmin = ([0-9.]*)/) { $mi=sprintf("%.2f", $1); next; };
if (/xmax = ([0-9.]*)/) { $ma=sprintf("%.2f", $1); printf "$mi $ma\n" };
}
使用以下命令运行此perl脚本:
script.pl < data
会导致
0.00 15.39 15.39 27.59 27.59 46.06 46.06 65.68 65.68 81.08 81.08 82.80
答案 3 :(得分:0)
sed 'N;s/xm.. = //g;s/\([0-9]*\.[0-9]\{2\}\)[0-9]*/\1/g;y/\n/ /' info.txt
xman/xmin =
(对于GNU sed,POSIX版本为--posix
)