|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
Need help in Regular expression in bash shell
Post 302440120 by flamingo_l on Monday 26th of July 2010 08:53:00 AM
07-26-2010
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I want to check if the first argument of my shell script starts with a specifiec string?
Any Idea??
Thank u (3 Replies)
Discussion started by: andy2000
3 Replies
2. Shell Programming and Scripting
Hi,
Actually i have written one test.sh (shell program) in bash.
Here i have a variables $a which stored the value package1.
Now I want to write a regular expression inside the if command that "if $a variable contains letter p in the begining of the value package1 then it is coming true.... (5 Replies)
Discussion started by: sunitachoudhury
5 Replies
3. Shell Programming and Scripting
In Perl I can write a condition that evaluates a match expression like this:
if ($foo =~ /^bar/) {
do blah blah blah
}
How do I write this in shell? What I need to know is what operator do I use? The '=~' doesn't seem to fit. I've tried different operators, I browsed the man page for... (3 Replies)
Discussion started by: indiana_tas
3 Replies
4. Shell Programming and Scripting
Hi,
I have script which will take a string as input and search in a file.
But when I want to search a pattern which has special characters script is ignoring it.
For example: I want to search a pattern "\.tumblr\.com". shell script is removing \ (backslah) and trying to search... (7 Replies)
Discussion started by: Anjan1
7 Replies
5. Shell Programming and Scripting
Dear all,
I have a specific problem that I don't quite understand how to solve. I have two files, both of the same format:
XXXXXX_FIND1 bla bla bla
bla
bla
bla
bla
bla
bla
bla
bla
bla
========
(return)
XXXXXX_FIND2 bla bla bla
bla
bla
bla (10 Replies)
Discussion started by: TheTransporter
10 Replies
6. Programming
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. Shell Programming and Scripting
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
8. UNIX for Advanced & Expert Users
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
9. Shell Programming and Scripting
I do have a shell file where I call many unix commands . I would like to add a regular expression step in that shell file, where a text file, say Test.txt has to be openned and all the :'s should be replaced.
Basically apply the follwoing regular expression:
:%s/://g
to that particular text... (2 Replies)
Discussion started by: Lucky Ali
2 Replies
10. UNIX for Beginners Questions & Answers
If i do below command in unix prompt which static values (ie 27..97), it is working fine and gives desired output
>ls -d $WORKDIR/batch/somefilename_{27..97}.* 2>/dev/null
somefilename_27.sometxt
somefilename_28.sometxt
somefilename_29.sometxt
..
somefilename_97.sometxt
But if i want... (2 Replies)
Discussion started by: haiderali
2 Replies
LEARN ABOUT OSF1
jdbreg
jdbreg(8) System Manager's Manual jdbreg(8) NAME
jdbreg - Registers hosts in the DHCP dynamic databases. SYNOPSIS
/usr/sbin/jdbreg [-d] [-e] [-f character] [-s] [-l | -n] [-o] [-w] filename... OPTIONS
Deletes the records whose keys are implied by the input file(s). Uses character as the field separator. The default is the pipe | charac- ter. Display all currently registered hosts. DESCRIPTION
The jdbreg program registers (or removes) hosts for configuration by DHCP. When the registered_hosts_only policy is in effect, the server configure only clients whose MAC addresses are so registered. When this policy is not in effect, registering hosts has no effect. Each record to be loaded is terminated by a newline, and the fields within each record delimited by default with the pipe (|) character, although this may be changed with the -f command line option. The fields within the data file(s) to be loaded are as follows: MAC address MAC address type MAC address length (octets) RESTRICTIONS
Because the database used by join does not support multiuser concurrently, applications that write to it, lock the entire database. This means that you cannot use jdbreg while joind is running. The converse is also true. FILES
SEE ALSO
Commands: joind(8) jdbreg(8)