Sponsored Content
Full Discussion: Regular Expression.
Top Forums Shell Programming and Scripting Regular Expression. Post 302531959 by syco__ on Sunday 19th of June 2011 02:43:45 AM
Old 06-19-2011
Regular Expression.

can someone let me know what this means in english.

\(abcd\)


\ is an escape key right?

Thanks

Also im getting confused with something like it

[a-z] does this mean any single character?
and this would be 2 characters [a-z][a-z]?

Just let me know if im on the right track.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Regular Expression + Aritmetical Expression

Is it possible to combine a regular expression with a aritmetical expression? For example, taking a 8-numbers caracter sequece and casting each output of a grep, comparing to a constant. THX! (2 Replies)
Discussion started by: Z0mby
2 Replies

2. Programming

What does the regular expression ['(^[^~]+~).*'] mean?

What does the regular expression +~).*'] mean while using it with regexec.When the string "RCHNUSNT35C~rs07/ASM-RS07" is used with the regular expression +~).*'] regexec gives an error. I know what regexec does,but i do not understand what this expression means wrt to this string... any help... (2 Replies)
Discussion started by: anupamar
2 Replies

3. Linux

Regular expression to extract "y" from "abc/x.y.z" .... i need regular expression

Regular expression to extract "y" from "abc/x.y.z" (2 Replies)
Discussion started by: rag84dec
2 Replies

4. UNIX for Dummies Questions & Answers

ls with regular expression

I currently list and sort all the files in a directory which begin with an Upper Case C and end with the extension '#finished#'. Here is the command I use: ls -tr $currentDir/*.#finished# what i need to do now is list all the files in a directory that begin with upper case C and end... (3 Replies)
Discussion started by: rkgudde
3 Replies

5. Shell Programming and Scripting

Integer expression expected: with regular expression

CA_RELEASE has a value of 6. I need to check if that this is a numeric value. if not error. source $CA_VERSION_DATA if * ] then echo "CA_RELESE $CA_RELEASE is invalid" exit -1 fi + source /etc/ncgl/ca_version_data ++ CA_PRODUCT_ID=samxts ++ CA_RELEASE=6 ++ CA_WEEK_NO=7 ++... (3 Replies)
Discussion started by: ketkee1985
3 Replies

6. Programming

Perl: How to read from a file, do regular expression and then replace the found regular expression

Hi all, How am I read a file, find the match regular expression and overwrite to the same files. open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat"; open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat"; while (<DESTINATION_FILE>) { # print... (1 Reply)
Discussion started by: jessy83
1 Replies

7. UNIX for Advanced & Expert Users

sed: -e expression #1, char 0: no previous regular expression

Hello All, I'm trying to extract the lines between two consecutive elements of an array from a file. My array looks like: problem_arr=(PRS111 PRS213 PRS234) j=0 while } ] do k=`expr $j + 1` sed -n "/${problem_arr}/,/${problem_arr}/p" problemid.txt ---some operation goes... (11 Replies)
Discussion started by: InduInduIndu
11 Replies

8. UNIX for Dummies Questions & Answers

Regular expression help

Hi, I am quite knew to scripting and I am trying to get a regular expression to work to check that a user enters a valid version number such as 1 or 1.1 or 12.3 etc. I dont seem to be able to get it to work as it picks up versions such as 1.......2. I only want it to work with a single dot.... (12 Replies)
Discussion started by: frodo61
12 Replies

9. Shell Programming and Scripting

Regular expression

Can someone please explain me what does this mean? ^{1,50}$ (1 Reply)
Discussion started by: Anupam_Halder
1 Replies

10. Shell Programming and Scripting

Regular expression

I would like to extract "JDBC Thin Client" from (PROGRAM=JDBC Thin Client); and "C:\Python26\python.exe" from (PROGRAM=C:\Python26\python.exe); "txm_v_awsrf_db.pr" from (PROGRAM=txm_v_awsrf_db.pr). if input line like "(PROGRAM=)", it return unknown. Would you help suggest a regular... (4 Replies)
Discussion started by: cstsang
4 Replies
british-english-large(5)					   Users' Manual					  british-english-large(5)

NAME
british-english-large - a list of English words DESCRIPTION
/usr/share/dict/british-english-large is an ASCII file which contains an alphabetic list of words, one per line. FILES
There may be any number of word lists in /usr/share/dict/. /etc/dictionaries-common/words is a symbolic link to the currently-chosen /usr/share/dict/<language> file. /usr/share/dict/words is a symbolic link to /etc/dictionaries-common/words, and is the name by which other software should refer to the system word list. See select-default-wordlist(8) for more information, and/or to change the currently- chosen word list. The directory /usr/share/dict can contain word lists for many languages, with name of the language in English, e.g., /usr/share/dict/french and /usr/share/dict/danish contain respectively lists of French and Danish words if they exist. Such lists should be coded using the ISO 8859-1 character set encoding. SEE ALSO
ispell(1), select-default-wordlist(8), and the Filesystem Hierarchy Standard. HISTORY
The words lists are not specific, and may be generated from any number of sources. The system word list used to be /usr/dict/words. For compatibility, software should check that location if /usr/share/dict/words does not exist. AUTHOR
Word lists are collected and maintained by various authors. The Debian English word lists are built from the SCOWL (Spell- Checker Ori- ented Word Lists) package, whose upstream editor is Kevin Atkinson <kevina@users.sourceforge.net>. Debian 16 June 2003 british-english-large(5)
All times are GMT -4. The time now is 05:57 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy