大约有 38,000 项符合查询结果（耗时：0.0419秒） [XML]
How do you detect Credit card type based on number?
...
29 Answers
29
Active
...
What is the ultimate postal code and zip regex?
...
answered Feb 23 '09 at 17:10
TrebTreb
18.7k55 gold badges5050 silver badges8282 bronze badges
...
All permutations of a Windows license key
...e it down.
The simplest way is the use of shell expansion:
$ echo MPP6R-09RXG-2H{8,B}MT-{B,8}K{H,N}M9-V{6,G}C8R
MPP6R-09RXG-2H8MT-BKHM9-V6C8R
MPP6R-09RXG-2H8MT-BKHM9-VGC8R
MPP6R-09RXG-2H8MT-BKNM9-V6C8R
MPP6R-09RXG-2H8MT-BKNM9-VGC8R
MPP6R-09RXG-2H8MT-8KHM9-V6C8R
MPP6R-09RXG-2H8MT-8KHM9-VGC8R
MPP6R-...
jQuery animate backgroundColor
...length == 3) {
return f
}
if (e = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(f)) {
return [parseInt(e[1]), parseInt(e[2]), parseInt(e[3])]
}
if (e = /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\...
How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
...g the PostgreSQL database for my Ruby on Rails application (on Mac OS X 10.9).
15 Answers
...
How do I include negative decimal numbers in this regular expression?
...
169
You should add an optional hyphen at the beginning by adding -? (? is a quantifier meaning one o...
How to output only captured groups with sed?
...s specifying what you do want.
string='This is a sample 123 text and some 987 numbers'
echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'
This says:
don't default to printing each line (-n)
exclude zero or more non-digits
include one or more...
What is a good regular expression to match a URL? [duplicate]
...u want to ensure URL starts with HTTP/HTTPS:
https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)
If you do not require HTTP protocol:
[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)
To try this out see...
Which version of PostgreSQL am I running?
...se in terminal on Ubuntu
– Timo
Jul 9 '14 at 9:04
24
...
how to use sed, awk, or gawk to print only what is matched?
...ried * instead and I added p tag for printing match:
sed -n 's/^.*abc\([0-9]*\)xyz.*$/\1/p' example.txt
For matching at least one numeric character without +, I would use:
sed -n 's/^.*abc\([0-9][0-9]*\)xyz.*$/\1/p' example.txt
...