Sponsored Content
Top Forums Shell Programming and Scripting How to extract text from string using regular expressions Post 302247977 by cfajohnson on Thursday 16th of October 2008 07:55:56 PM
Old 10-16-2008
Quote:
Originally Posted by jtung
I"m looking to extract for example:

filename=/output/R34/2005_13_R34_C1042S_T83_CRFTXT_20081015.txt

I'm trying to extract the 1042 from that file name.

What are the criteria for determining which part of the string you want?

Do you want the digits from the fourth field, using underscore as the field delimiter?

Do you want whatever follows _C up to S_?

BTW, you don't want to use sed to work on a string.

Use sed for working on files and shell parameter expansion for manipulating strings.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Regular Expressions

I'm trying to parse RichText to XML. I want to be able to capture everything between the '/par' tag in the RTF but not include the tag itself. So far all I have is this, '.*?\\par' but it leaves '\par' at the end of it. Any suggestions? (1 Reply)
Discussion started by: AresMedia
1 Replies

2. Shell Programming and Scripting

regular expressions

Hello, Let say I have a string with content "Free 100%". How can extract only "100" using ksh? I would this machanism to work if instead of "100" there is any kind of combination of numbers(ex. "32", "1238", "1"). I want to get only the digits. I have written something like this: ... (4 Replies)
Discussion started by: whatever
4 Replies

3. Shell Programming and Scripting

Need help in string extraction using regular expressions

Hi, I am a new bee to this forum. I am trying to extract the text after a matching pattern from a url using regular expression. Ex: http://locatlhost:2020/proxy/checkthisout I want to extract the string after proxy/. I am not familiar with reg ex. Can someone please help? (2 Replies)
Discussion started by: akatraga
2 Replies

4. UNIX for Dummies Questions & Answers

Regular expressions

In regular expressions with grep(or egrep), ^ works if we want something in starting of line..but what if we write ^^^ or ^ for pattern matching??..Hope u all r familiar with regular expressions for pattern matching.. (1 Reply)
Discussion started by: aadi_uni
1 Replies

5. Shell Programming and Scripting

Regular Expressions

what elements does " /^/ " match? I did the test which indicates that it matches single lowercase character like 'a','b' etc. and '1','2' etc. But I really confused with that. Because, "/^abc/" matches strings like "abcedf" or "abcddddee". So, what does caret ^ really mean? Any response... (2 Replies)
Discussion started by: DavidHe
2 Replies

6. Shell Programming and Scripting

Regular expressions help

need a regex that matches when a number has a zero (0) at the end of it so like 10 20 120 30 330 1000 and so on (6 Replies)
Discussion started by: linuxkid
6 Replies

7. Shell Programming and Scripting

Help with regular expressions

I have a file that I'm trying to find all the cases of phone number extensions and deleting them. So input file looks like: abc x93825 def 13234 x52673 hello output looks like: abc def 13234 hello Basically delete lines that have 5 numbers following "x". I tried: x\(4) but it... (7 Replies)
Discussion started by: pxalpine
7 Replies

8. Shell Programming and Scripting

Regular Expressions

I am new to shell scripts.Can u please help me on this req. test_user = "Arun" if echo "test_user is a word" else echo "test_user is not a word" (1 Reply)
Discussion started by: chandrababu
1 Replies

9. UNIX for Dummies Questions & Answers

extract columns using grep or regular expressions

I am trying to print columns from a table whose name (header) matches a certain string. E.g., patient1001 patient1002 patient2005 patient3005 patient4001 0 0 0 0 0 2 9 2 8 3 2 7 3 0 2 Say I want to print columns whose names end with "01" patient1001 patient4001 0 0 2 3 2 2 ... (3 Replies)
Discussion started by: quextil
3 Replies

10. Shell Programming and Scripting

regular expression with shell script to extract data out of a text file

hi i am trying to extract some specific data out of a text file using regular expressions with shell script that is using a multiline grep .. and the tool i am using is pcregrep so that i can get compatibility with perl's regular expressions for a sample data like this, i am trying to grab... (6 Replies)
Discussion started by: vemkiran
6 Replies
innoextract(1)						      General Commands Manual						    innoextract(1)

NAME
innoextract - tool to extract installers created by Inno Setup SYNOPSIS
innoextract [-behlLqstv] [-ccolor] [-pprogress] installers ... DESCRIPTION
innoextract is a tool that can extract installer executables created by Inno Setup. innoextract will extract files from a installers specified on the command line. To extract a multi-part installer with external data files, only the executable (.exe) file needs to be given as an argument to innoex- tract. OPTIONS
-c --color [enable] By default innoextract will try to detect if the terminal supports shell escape codes and enable or disable color output accord- ingly. Pass 1 or true to --color to force color output. Pass 0 or false to never output color codes. --dump Don't convert Windows paths to UNIX paths and don't substitute variables in paths. -e --extract Extract all files to the current directory. This is the default action. You may only specify one of --extract , --list and --test -h --help Show a list of the supported options. --language [lang] Extract only language-independent files and files for the given language. By default all files are extracted. --license Show license information. -l --list List files contained in the installer but don't extract anything. You may only specify one of --extract , --list and --test -L --lowercase Convert filenames stored in the installer to lower-case before extracting. -p --progress [enable] By default innoextract will try to detect if the terminal supports shell escape codes and enable or disable progress bar output accordingly. Pass 1 or true to --progress to force progress bar output. Pass 0 or false to never show a progress bar. -q --quiet Less verbose output. -s --silent Don't output anything except errors and warnings. -t --test Test archive integrity but don't write any output files. You may only specify one of --extract , --list and --test -v --version Show the innoextract version number and supported Inno Setup versions. LIMITATIONS
innoextract currently only supports extracting all the data. There is no support for extracting individual files, components or languages. Included scripts and checks are not executed. Data is always extracted to the current directory and the mapping from Inno Setup variables like the application directory to subdirecto- ries is hard-coded. innoextract does not check if an installer includes multiple files with the same name and will continually overwrite the destination file when extracting. Names for data files in multi-file installers must follow the standard naming scheme. Encrypted installers are not supported. SEE ALSO
cabextract(1), unshield(1) BUGS
No known bugs. AUTHOR
Daniel Scharrer (daniel@constexpr.org) 1.2 2012-04-01 innoextract(1)
All times are GMT -4. The time now is 07:56 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy