Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: regex on first string in a variable.
Top Forums UNIX for Dummies Questions & Answers regex on first string in a variable. Post 302231801 by radoulov on Wednesday 3rd of September 2008 07:28:36 AM
Old 09-03-2008
Code:
for sem in s62464053 m53267 s23760930 452629; do
  case $sem in
    [sm]* ) printf "${sem#?}\n";;
        * ) printf "$sem\n";;
  esac		
done

With some recent shells (bash, ksh93, zsh):

Code:
for sem in s62464053 m53267 s23760930 452629; do
  [[ "$sem" == [sm]* ]] && 
    printf "${sem#?}\n" || 
	  printf "$sem\n"		
done

Or just:

Code:
sem=(s62464053 m53267 s23760930 452629)
printf "%s\n" "${sem[@]/[sm]}"

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

regex in variable

Hello! I have problems with syntax... I want a variable, that contains regex... is it possible? Like $ a='.+->.+' and then use it in index ($0, "a"). I guess it won't work... thank you :) (4 Replies)
Discussion started by: alias47
4 Replies

2. Shell Programming and Scripting

Perl Regex string opperation

I'm working on a basic log parser in perl. Input file looks like: len: 120713 foo bar file size of: testdir1/testdir1/testdir1/testdir1/testfile0 is 120713Of course there are tens of thousands of lines... I'm trying to compare the len and filesize values. #!/usr/bin/perl use strict; use... (2 Replies)
Discussion started by: dkozel
2 Replies

3. Shell Programming and Scripting

using regex to get part of a string ?

Hi there, i wonder, is it possible to use regular expressions to partially select a string? I have a bunch of server names which look like this server1z-test server2z2 server45z-primary server13z3 I want to extract up to and including the 'z' in the server name, so for example ... (4 Replies)
Discussion started by: hcclnoodles
4 Replies

4. Shell Programming and Scripting

filtering out duplicate substrings, regex string from a string

My input contains a single word lines. From each line data.txt prjtestBlaBlatestBlaBla prjthisBlaBlathisBlaBla prjthatBlaBladpthatBlaBla prjgoodBlaBladpgoodBlaBla prjgood1BlaBla123dpgood1BlaBla123 Desired output --> data_out.txt prjtestBlaBla prjthisBlaBla... (8 Replies)
Discussion started by: kchinnam
8 Replies

5. Shell Programming and Scripting

Perl: Regex, string matching

Hi, I've a logfile which i need to parse and get the logs depending upon the user input. here, i'm providing an option to enter the string which can be matched with the log entries. e.g. one of the logfile entry reads like this - $str = " mpgw(BLUESOAPFramework):... (6 Replies)
Discussion started by: butterfly20
6 Replies

6. UNIX for Dummies Questions & Answers

Regex and variable assignment

Hi there, I really didn't want to have to waste people's time and ask this, but after 2 hours and running out of my own time I've decided to ask.. Basically I have a file in the format: word: other words; more words here; last word word: more words here; last word (etc) x 100 Where the... (3 Replies)
Discussion started by: maximus73
3 Replies

7. Shell Programming and Scripting

String regex comparisons

Here is the sample code: str1="abccccc" str2="abc?" if ]; then echo "same string" else echo "different string" fi Given that ? implies 0 or 1 match of preceding character, I was expecting the output to be "different string", but I am seeing "same string". Am I not using the... (3 Replies)
Discussion started by: Rameshck
3 Replies

8. Shell Programming and Scripting

Grep with regex containing one string but not the other

Hi to you all, I'm just struggling with a regex problem and I'm pretty sure that I'm missing sth obvious... :confused: I need a regex to feed my grep in order to find lines that contain one string but not the other. Here's the data example: 2015-04-08 19:04:55,926|xxxxxxxxxx| ... (11 Replies)
Discussion started by: stresing
11 Replies

9. Shell Programming and Scripting

Using RegEx with variable within bash if [[ ]]

I stumbled upon a problem, which I simplified to this: There is a list of numbers, stored in variable $LIST, lets use `seq 5 25` for demonstration. There is a number that should be compared against this list. For demonstration I use user input - read VALUE I am trying to compare RegEx... (2 Replies)
Discussion started by: Zorbeg
2 Replies

10. UNIX for Beginners Questions & Answers

Check if string variable is a subset of another string variable

Below is my ksh shell script where I need to check if variable fileprops is a subset of $1 argument. echo "FILE PROPERTY: $fileprops" echo "PARAMETER3: $1" if ; then echo "We are Good. $line FILE is found to be INTACT !! " else echo... (2 Replies)
Discussion started by: mohtashims
2 Replies

LEARN ABOUT DEBIAN

rabbitmq-env.conf

RABBITMQ-ENV.CONF(5)						  RabbitMQ Server					      RABBITMQ-ENV.CONF(5)

NAME

       rabbitmq-env.conf - default settings for RabbitMQ AMQP server

DESCRIPTION

       /etc/rabbitmq/rabbitmq-env.conf contains variable settings that override the defaults built in to the RabbitMQ startup scripts.

       The file is interpreted by the system shell, and so should consist of a sequence of shell environment variable definitions. Normal shell
       syntax is permitted (since the file is sourced using the shell "." operator), including line comments starting with "#".

       In order of preference, the startup scripts get their values from the environment, from /etc/rabbitmq/rabbitmq-env.conf and finally from
       the built-in default values. For example, for the RABBITMQ_NODENAME setting,

       RABBITMQ_NODENAME

       from the environment is checked first. If it is absent or equal to the empty string, then

       NODENAME

       from /etc/rabbitmq/rabbitmq-env.conf is checked. If it is also absent or set equal to the empty string then the default value from the
       startup script is used.

       The variable names in /etc/rabbitmq/rabbitmq-env.conf are always equal to the environment variable names, with the RABBITMQ_ prefix
       removed: RABBITMQ_NODE_PORT from the environment becomes NODE_PORT in the /etc/rabbitmq/rabbitmq-env.conf file, etc.

       # I am a complete /etc/rabbitmq/rabbitmq-env.conf file.
       # Comment lines start with a hash character.
       # This is a /bin/sh script file - use ordinary envt var syntax
       NODENAME=hare

SEE ALSO

       rabbitmq-server(1) rabbitmqctl(1)

EXAMPLES

       # I am a complete /etc/rabbitmq/rabbitmq-env.conf file.
       # Comment lines start with a hash character.
       # This is a /bin/sh script file - use ordinary envt var syntax
       NODENAME=hare

       This is an example of a complete /etc/rabbitmq/rabbitmq-env.conf file that overrides the default Erlang node name from "rabbit" to "hare".

AUTHOR

       The RabbitMQ Team <info@rabbitmq.com>

RabbitMQ Server 						    06/22/2012						      RABBITMQ-ENV.CONF(5)
All times are GMT -4. The time now is 06:36 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy