Ok, I'm stumped and can't seem to find relevant info.
(I'm not even sure, I might have asked something similar before.):
I'm trying to use shell scripting/UNIX commands to extract URLs from a fairly large web page, with a view to ultimately wrapping this in PHP with exec() and including the... (2 Replies)
Hi!
I want to made a program that will generate code like this:
{{Navedi XYZ
|avtor=XYZ1
|naslov=XYZ2
|leto_izzida=XYZ3
|zalozba=XYZ4
|kraj=XYZ5
|isbn=XYZ6
|cobiss_id=XYZ7
}}
from input like this:
<b> ODGOVORNOST............. : <a... (5 Replies)
Hi guys
I need to find both negative and positive numbers from the following text file. And i also dont need 0.
0
8
-7
-2268
007
-07
-00
-0a0
0a0
-07a0
7a00
0a0
Can someone please give a regex to filter out the values in red. I tried a few things in awk but it didnt work... (9 Replies)
Hello,
Could someone explain why this one returns nothing:
$ x=/jon/
$ echo jon | awk -v xa=$x '$1~xa {print}'
$
while the following works fine:
$ x=jon
$ echo jon | awk -v xa=$x '$1==xa {print}'
$ jon
and the following works fine:
$ echo jon | awk '$1~/jon/ {print}'
$ jon
... (3 Replies)
hi everyone
suppose my input file is
ABC-12345
ABCD-12345
BCD-123456
i want to search the specific pattern which looks like
-
in a file so i used this command
cat $file | awk ' { if ($0 ~ /-/) { print } }'
so it gives me the result as
ABCD-12345
BCD-12345
BCD-12345
... (31 Replies)
Hi can you suggest in this regard
The sample.txt conatins the data
name lines type
sam 12 txt
sam 24 xls
sam 36 pdf
ram 32 txt
ram 45 sxls
ram 58 word
sam 92 jpeg
sam 21 gif
sam 22 ltf
from the data i need to sum all line... (5 Replies)
Hi all,
Can someone tell me what's the (g)awk equal of this simple regex to find ip addresses in urls:
egrep "^http://{1,3}\.{1,3}\.{1,3}\.{1,3}(:{1,5})?/"Input:
http://10.0.0.1/query.exe
http://11y10x09w:80/howaboutme
http://192.168.100.190:1234/takeme.gpg
Output:... (8 Replies)
Hello I have a file like :
20120918000001413 | 1.17.163.89 | iSelfcare | MSISDN | N
20120918000001806 | 1.33.27.100 | iSelfcare | 5564 | N
....
I want to extract all lines that have on 4th field (considering "|" the separator ) something other than just digits. I want to do this using a... (5 Replies)
Hello to all,
I have:
X="string 1-"
Y="-string 2"
Z="string 1-20-string 2"In the position of the number 20 could be different numbers, but I'm interest only when the number is 15, 20,45 or 70.
I want to include an IF within an awk code with a regex in the following way.
... (12 Replies)
I have location as
line=/got/cpp/track/tmp/piy/p_tok.xml
I need the path till tmp i.e. /got/cpp/track/tmp
i tried test=${line%/)}
and i am getting location till /got/cpp/track/tmp/piy
Can anyone help me in correcting my regex (2 Replies)
Discussion started by: dreams619
2 Replies
LEARN ABOUT PLAN9
regexp
REGEXP(6) Games Manual REGEXP(6)NAME
regexp - regular expression notation
DESCRIPTION
A regular expression specifies a set of strings of characters. A member of this set of strings is said to be matched by the regular
expression. In many applications a delimiter character, commonly bounds a regular expression. In the following specification for regular
expressions the word `character' means any character (rune) but newline.
The syntax for a regular expression e0 is
e3: literal | charclass | '.' | '^' | '$' | '(' e0 ')'
e2: e3
| e2 REP
REP: '*' | '+' | '?'
e1: e2
| e1 e2
e0: e1
| e0 '|' e1
A literal is any non-metacharacter, or a metacharacter (one of .*+?[]()|^$), or the delimiter preceded by
A charclass is a nonempty string s bracketed [s] (or [^s]); it matches any character in (or not in) s. A negated character class never
matches newline. A substring a-b, with a and b in ascending order, stands for the inclusive range of characters between a and b. In s,
the metacharacters an initial and the regular expression delimiter must be preceded by a other metacharacters have no special meaning and
may appear unescaped.
A matches any character.
A matches the beginning of a line; matches the end of the line.
The REP operators match zero or more (*), one or more (+), zero or one (?), instances respectively of the preceding regular expression e2.
A concatenated regular expression, e1e2, matches a match to e1 followed by a match to e2.
An alternative regular expression, e0|e1, matches either a match to e0 or a match to e1.
A match to any part of a regular expression extends as far as possible without preventing a match to the remainder of the regular expres-
sion.
SEE ALSO awk(1), ed(1), sam(1), sed(1), regexp(2)REGEXP(6)