I am searching for "o" then prints all lines with "o". Any suggestion/code I must apply?
我正在搜索“o”然后用“o”打印所有行。我必须申请的任何建议/代码?
data.txt:
j,o,b:
a,b,d:
o,l,e:
f,a,r:
e,x,o:
desired output:
j,o,b:
o,l,e:
e,x,o:
6 个解决方案
#1
9
grep o data.txt
perl -ne 'print if (/o/);' <data.txt
#2
4
If you have grep on your system, then grep o data.txt from the command line should do the trick.
如果你的系统上有grep,那么命令行中的grep o data.txt应该可以解决问题。
Failing that, you could try Perl:
如果做不到这一点,你可以尝试Perl:
open IN, 'data.txt';
my @l = <IN>;
close IN;
foreach my $l (@l) {
$l =~ /o/ and print $l;
}
#3
1
grep "o" data.txt
Does that help? I don't know Perl, but you can get the same output using the above grep.
这有帮助吗?我不知道Perl,但你可以使用上面的grep获得相同的输出。
#4
1
print if /o/;
#5
0
In Perl:
while (<>) { print if /o/; }
or with grep:
或者用grep:
grep 'o' data.txt
#6
0
as a very short one-liner:
作为一个非常短的单行:
> perl -pe'$_ x=/o/' filename
#1
9
grep o data.txt
perl -ne 'print if (/o/);' <data.txt
#2
4
If you have grep on your system, then grep o data.txt from the command line should do the trick.
如果你的系统上有grep,那么命令行中的grep o data.txt应该可以解决问题。
Failing that, you could try Perl:
如果做不到这一点,你可以尝试Perl:
open IN, 'data.txt';
my @l = <IN>;
close IN;
foreach my $l (@l) {
$l =~ /o/ and print $l;
}
#3
1
grep "o" data.txt
Does that help? I don't know Perl, but you can get the same output using the above grep.
这有帮助吗?我不知道Perl,但你可以使用上面的grep获得相同的输出。
#4
1
print if /o/;
#5
0
In Perl:
while (<>) { print if /o/; }
or with grep:
或者用grep:
grep 'o' data.txt
#6
0
as a very short one-liner:
作为一个非常短的单行:
> perl -pe'$_ x=/o/' filename