Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: regular expression in ksh
Top Forums Shell Programming and Scripting regular expression in ksh Post 302376143 by jlliagre on Monday 30th of November 2009 06:03:59 PM
Old 11-30-2009
What you are looking is not full regular expression but simple file expansion like pattern matching.
Instead of using multiple if/then statements, the shell case/esac syntax seems the simpler solution to achieve what you want:
Code:
function get_hosttype
{
  export boxname=unknown
  case $(hostname) in
  (ne1dxdb*) boxname=test;;
  (ne1pxdb*) boxname=prod;;
  esac
}

Scrutinizer suggestion will work too.
Last edited by jlliagre; 11-30-2009 at 10:11 PM.. Reason: Add some explanations
 

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. 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

3. Shell Programming and Scripting

regular expression help

I have a question regarding pattern searching with grep. I have read tutorials all over the place and pretty much understand how to search for patterns and recurring patterns. I, however, need to search for words which have non-repeating occurances. My task is to parse a 'permissions'... (6 Replies)
Discussion started by: Bob565656
6 Replies

4. Shell Programming and Scripting

Regular Expression

Hi, I have the following file as shown below: Replace() { sed -e "s+ABCDIR+$DDIR/C+g" \ -e "s+ABCDIR+$DDIR/C+g" \ -e "s + ABCDDIR+$DDIR/C"\ } I need a Regular expression to grep 0nly ABCDIR. if i use grep -i... (3 Replies)
Discussion started by: ravi_rn
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. Shell Programming and Scripting

help in regular expression

<ATTR name="ABCDEFGH" value=""/> <ATTR name="HJYR" value=""/> what would be the regular expression to match both the above strings... Always end with value=""/> always start with <ATTR name=" the ATTR name can be anything.. I need to use this with match() in awk. Thanks.. (1 Reply)
Discussion started by: shekhar2010us
1 Replies

7. 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

8. UNIX for Dummies Questions & Answers

regular expression help

\..\ {3\}$ which one of these does this match rs.ef$tt abc.ab abc.$$$$ abc I think its the 1st one what do you think? Thanks Please use code tags! (2 Replies)
Discussion started by: drew211
2 Replies

9. Shell Programming and Scripting

Regular Expression in Find command [KSH]

Hello, I am trying to use regex wtih find command in KSH. For some reason it is not working as expected. Input: comm_000_abc_0102.c comm_000_abc.c 456_000_abc_1212.cpp 456_000_abc_.cpp Expected Output: comm_000_abc_0102.c kkm_000_abc_8888.cpp (Basically I want to find all... (6 Replies)
Discussion started by: vinay4889
6 Replies

10. 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

LEARN ABOUT MOJAVE

vconsole.conf

VCONSOLE.CONF(5)                                                   vconsole.conf                                                  VCONSOLE.CONF(5)

NAME

       vconsole.conf - configuration file for the virtual console

SYNOPSIS

       /etc/vconsole.conf

DESCRIPTION

       The /etc/vconsole.conf file configures the virtual console, i.e. keyboard mapping and console font.

       The basic file format of the vconsole.conf is a newline-separated list environment-like shell-compatible variable assignments. It is
       possible to source the configuration from shell scripts, however, beyond mere variable assignments no shell features are supported,
       allowing applications to read the file without implementing a shell compatible execution engine.

       Note that the kernel command line options vconsole.keymap=, vconsole.keymap.toggle=, vconsole.font=, vconsole.font.map=,
       vconsole.font.unimap= may be used to override the console settings at boot.

       Depending on the operating system other configuration files might be checked for configuration of the virtual console as well, however only
       as fallback.

OPTIONS

       The following options are understood:

       KEYMAP=, KEYMAP_TOGGLE=
           Configures the key mapping table of for they keyboard.  KEYMAP= defaults to us if not set. The KEYMAP_TOGGLE= can be used to configured
           a second toggle keymap and is by default unset.

       FONT=, FONT_MAP=, FONT_UNIMAP=
           Configures the console font, the console map and the unicode font map.  FONT= defaults to latarcyrheb-sun16.

EXAMPLE

       Example 1. German keyboard and console

       /etc/vconsole.conf:

           KEYMAP=de-latin1
           FONT=latarcyrheb-sun16

SEE ALSO

       systemd(1), loadkeys(1), setfont(8), locale.conf(5)

AUTHOR

       Lennart Poettering <lennart@poettering.net>
           Developer

systemd                                                             10/07/2013                                                    VCONSOLE.CONF(5)
All times are GMT -4. The time now is 09:36 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy