|
|
Sponsored Content
07-15-2018
Regex
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
i want to match a string using perl that has got 5 pluses(+++++).
i am using a function for this.
$str1="+++++";
check($str1,"\\+");
sub check{
$str1=$_;
$str2=$_;
if($str1=~m/^$str2{5}$/){
print "Correct.\n";
}else{
print "Wrong..\n";
... (6 Replies)
Discussion started by: deepakpv
6 Replies
2. Shell Programming and Scripting
Hi,
I am trying to grep for the following type of string from a document given below:
12637 1239 3356 12956 7004 7004 7004 13381 13381
*> 12.0.1.63 0 7018 21872 ?
* 208.51.134.254 53 0 3549 7018 21872 ?... (1 Reply)
Discussion started by: Legend986
1 Replies
3. UNIX for Dummies Questions & Answers
Can anyone give the detailed explanation on regex search
i want to know the use of regex in sed and awk also......
the operators like ^,.,* ....etc i need it with some example.....kindly help on this.
I gone through the man pages also..but i was not clear......... (1 Reply)
Discussion started by: sivakumar.rj
1 Replies
4. Shell Programming and Scripting
I would like to search strings composed by only one type of charachter for example
only strings composed by the charachter 'b'
is it right?
$egrep '\<(b+)+\>' filename
Could be there some side effects?
Regards. (1 Reply)
Discussion started by: and77
1 Replies
5. Shell Programming and Scripting
I am having trouble parsing rpm filenames in a shell script.. I found a snippet of perl code that will perform the task but I really don't have time to rewrite the entire script in perl. I cannot for the life of me convert this code into something sed-friendly:
if ($rpm =~ /(*)-(*)-(*)\.(.*)/)... (1 Reply)
Discussion started by: suntzu
1 Replies
6. Shell Programming and Scripting
I have a regex I'd like to implement and I believe it should be working and I have tested it on various websites that have regex testers but it always says the name is invalid.
#!/bin/bash -x
echo Enter the users first and last name.
read name
if... (11 Replies)
Discussion started by: woodson2
11 Replies
7. UNIX for Dummies Questions & Answers
I have a file of protein sequences with headers (my source file). Based on a list of IDs (which are included in some of the headers), I'd like to print out only the specified sequences, with only the ID as header.
In other words, I'd like to search source.txt for the terms in IDs.txt, and print... (3 Replies)
Discussion started by: pathunkathunk
3 Replies
8. Shell Programming and Scripting
I am not a big expert in regex and have just little understanding of that language.
Could you help me to understand the regular Perl expression:
^(?!if\b|else\b|while\b|)(?:+?\s+){1,6}(+\s*)\(*\) *?(?:^*;?+){0,10}\{
------
This is regex to select functions from a C/C++ source and defined in... (2 Replies)
Discussion started by: alex_5161
2 Replies
9. UNIX for Beginners Questions & Answers
Here i am writing a script to check&display only the valid mail address from a file
echo "Plz enter the Target file name with path"
read path
if
then
echo "The valid mail address are:"
email=$(grep -E -o "\b+@+\.{2,6}\b" $path )
echo "$email"
fi
The file contains the data like this:... (6 Replies)
Discussion started by: Meeran Rizvi
6 Replies
10. Shell Programming and Scripting
I'm trying to get some exclusions into our sendmail regular expression for the K command. The following configuration & regex works:
LOCAL_CONFIG
#
Kcheckaddress regex -a@MATCH
+<@+?\.++?\.(us|info|to|br|bid|cn|ru)
LOCAL_RULESETS
SLocal_check_mail
# check address against various regex... (0 Replies)
Discussion started by: RobbieTheK
0 Replies
LEARN ABOUT DEBIAN
cw
CW(7) Miscellaneous Information Manual CW(7) NAME
CW - the international Morse code DESCRIPTION
CW is an abbreviation for "continuous wave", the commonly used technical term for Morse code communication. A basic knowledge or under- standing of Morse code is a requirement for Radio Amateurs and Marine Radio Operators in many parts of the world. MORSE CODE TIMINGS In Morse code, a dot or dash is referred to as an element. The basic timing unit is the dot period. This is the time taken to send a dot, not including any space before or after the dot. The lengths of all other elements are then derived from this basic unit, using the fol- lowing rules: The duration of a dash is three dots. The time between each element (dot or dash) is one dot length. The space between characters is three dot lengths. The space between words is seven dot lengths. The following formula calculates the dot period in microseconds from the Morse code speed in words per minute: dot period = ( 1200000 / speed ) This formula arises from the use of the word PARIS as a 'standard' word for calibrating Morse code speed. PARIS is 50 units long when sent in Morse code. Analysis of English plain-text indicates that the average word is 50 units, including spaces. MORSE CODE CHARACTERS The following list shows the IS0 8859-1 (Latin-1) characters that have commonly understood representations in Morse code: ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"$()+-./:;=?_@ and space In addition, following ISO 8859-1 and ISO 8859-2 accented characters are also part of the generally accepted international Morse code: UACOEEANS (S with cedilla), (Z with caron/hacek), Finally, libcw adds the following ASCII characters as extensions to single character procedural signals: <>!&^~ MORSE CODE CHARACTER TABLES The following table shows the Morse code equivalents for the ISO 8859-1, accented ISO 8859-1, and accented ISO 8859-2 characters above. The ASCII portion of this table is taken from the ARRL Handbook, and the accented extensions from various other sources: Ch Code Ch Code Ch Code Ch Code ------------------------------------------------------- A .- B -... C -.-. D -.. E . F ..-. G --. H .... I .. J .--- K -.- L .-.. M -- N -. O --- P .--. Q --.- R .-. S ... T - U ..- V ...- W .-- X -..- Y -.-- Z --.. 0 ----- 1 .---- 2 ..--- 3 ...-- 4 ....- 5 ..... 6 -.... 7 --... 8 ---.. 9 ----. " .-..-. ' .----. $ ...-..- ( -.--. ) -.--.- + .-.-. , --..-- - -....- . .-.-.- / -..-. : ---... ; -.-.-. = -...- ? ..--.. _ ..--.- Ch Code Ch Code ------------------------------------------------- U ..-- A .-.- C -.-.. O ---. E ..-.. A .-..- A .--.- N --.-- S (S+cedilla) ---- (Z+caron/hacek) --..- In addition to the above standard characters, the following characters are conventionally used for punctuation and procedural signals as follows: Ch Code Ch Code Ch Code Ch Code ------------------------------------------------------- " .-..-. ' .----. $ ...-..- ( -.--. ) -.--.- + .-.-. , --..-- - -....- . .-.-.- / -..-. : ---... ; -.-.-. = -...- ? ..--.. _ ..--.- @ .--.-. and the following are non-conventional extensions implemented by libcw: Ch Code Ch Code Ch Code Ch Code ----------------------------------------------------- < ...-.- > -...-.- ! ...-. & .-... ^ -.-.- ~ .-.-.. An alternative view of punctuation and procedural signals is as combination Morse characters: Ch Prosig Ch Prosig Ch Prosig Ch Prosig --------------------------------------------------------- " [AF] ' [WG] $ [SX] ( [KN] ) [KK] + [AR] , [MIM] - [DU] . [AAA] / [DN] : [OS] ; [KR] = [BT] ? [IMI] _ [IQ] @ [AC] < [VA],[SK] > [BK] ! [SN] & [AS] ^ [KA] ~ [AL] NOTES
Despite the fact that this manual page constantly and consistently refers to Morse code elements as dots and dashes, DO NOT think in these terms when trying to learn Morse code. Always think of them as 'dit's and 'dah's. SEE ALSO
Man pages for libcw(3,LOCAL), cw(1,LOCAL), cwgen(1,LOCAL), cwcp(1,LOCAL), and xcwcp(1,LOCAL). CW Tutor Package CW(7)