01-02-2020
@Aia: the problem with your approach is that
- either ALL multiple spaces in the string are reduced to a single one (if unquoted)
- or the spaces around A_PATTERN are preserved (if quoted), which was not what the OP requested.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello Experts,
I m newbie. Could u pls help me to write script on Sun solaris-
I have backup directory "/var/opt/backup/" where files are backed up in different directory "backup1" "backup2" "backup3".
I want to write a shell script which i will put in crontab and daily midnight it will... (1 Reply)
Discussion started by: thepurple
1 Replies
2. Shell Programming and Scripting
Hi,
I have been trying to remove whitespace from a file using sed. Here is an example of what im trying to do:
www1 = www1
www2 = www2
www3 = www3
and all the way to 300 and i want it to look like:
www1=www1
www2-www2
www3=www3
again upto 300
Any help... (12 Replies)
Discussion started by: truck7758
12 Replies
3. Shell Programming and Scripting
This is my first post, please be nice. I have tried to google and read different tutorials.
The task at hand is:
Input file input.txt (example)
abc123defhij-E-1234jslo
456ujs-W-abXjklp
From this file the task is to grep the -E- and -W- strings that are unique and write a new file... (5 Replies)
Discussion started by: TestTomas
5 Replies
4. Shell Programming and Scripting
Hi
Following is an example line.
echo "192.22.22.22 \"33dffwef\" 200 300 dsdsd" | sed "s:\(\ *\ \):\1:"
I want it's output to be
200
However this is not the case. Can you tell me how to do it? I don't want to use AWK for this. Secondly, how can i fetch just 300? Should I use "\2"... (3 Replies)
Discussion started by: shahanali
3 Replies
5. Shell Programming and Scripting
Gurus,
I have a big file that needs to be sorted out and I cant figure out what to do. The file name is as below:
Name: xxxx yyyy nnnn
Description: dfffgs sdgsgsf hsfhhs
afgghhjdgj
fjklllll gsfhfh
Updated: jafgadsgg gsg
Corrected: date today
The file consists of line like these.
... (13 Replies)
Discussion started by: The One
13 Replies
6. Shell Programming and Scripting
Hi all,
Can anyone help me on this. I have several WP sites that are affected by sql injections. But the contents are different as follows
western union india belgaum
western union india bolegaon
western union india barhaj
western union india budhana
western union india belda
western... (6 Replies)
Discussion started by: sanjuabraham
6 Replies
7. UNIX for Dummies Questions & Answers
Hi All.
How can I convert this:
ABC_1_1
ABC_1_2
ABC_1_3
into this:
ABC_1 1
ABC_1 2
ABC_1 3
I tried this command but it is not working:
awk '{sub(/+$/,"\t", $1)}{print}'
Any suggestions on how to fix this?
Thank you :wall:
Please use code tags when posting data and... (3 Replies)
Discussion started by: danieladna
3 Replies
8. Shell Programming and Scripting
Hi all
I need your help to get a high-performance solution.
I am working on a extensive script to automate file restores using the bprestore tool on a Solaris 5.10 server (bash 3.00). I will only paste the needed parts of the script to avoid any confusion.
To use the script the user has to... (2 Replies)
Discussion started by: Anonym
2 Replies
9. Shell Programming and Scripting
Hello to all,
Maybe someone could help me, my question is:
How can a filter the print of command ls for the files with names of the form "abc*.txt" including the path?
I've done this:
If I move with command cd to /My/Path/Is/This/ and send this command:
ls -lst abc*.txt -i... (37 Replies)
Discussion started by: Ophiuchus
37 Replies
10. Shell Programming and Scripting
Hello,
I have a data file consisting of many lines and my target is to delete all lines containing 0%
After some sed processes, I convert it to shown below format:
Sample webpage logfile:
Expected output is:
sed command is not working for below methods:
sed -n '/0%/p' logfile > output... (1 Reply)
Discussion started by: baris35
1 Replies
LEARN ABOUT REDHAT
pcre_table
PCRE_TABLE(5) File Formats Manual PCRE_TABLE(5)
NAME
pcre_table - format of Postfix PCRE tables
SYNOPSIS
pcre:/etc/postfix/filename
DESCRIPTION
The Postfix mail system uses optional tables for address rewriting or mail routing. These tables are usually in dbm or db format. Alterna-
tively, lookup tables can be specified in Perl Compatible Regular Expression form.
To find out what types of lookup tables your Postfix system supports use the postconf -m command.
The general form of a PCRE table is:
pattern result
When pattern matches a search string, use the corresponding result.
blank lines and comments
Empty lines and whitespace-only lines are ignored, as are lines whose first non-whitespace character is a `#'.
multi-line text
A logical line starts with non-whitespace text. A line that starts with whitespace continues a logical line.
Each pattern is a perl-like regular expression. The expression delimiter can be any character, except whitespace or characters that have
special meaning (traditionally the forward slash is used). The regular expression can contain whitespace.
By default, matching is case-insensitive, although following the second slash with an `i' flag will reverse this. Other flags are sup-
ported, but the only other useful one is `U', which makes matching ungreedy (see PCRE documentation and source for more info).
Each pattern is applied to the entire lookup key string. Depending on the application, that string is an entire client hostname, an entire
client IP address, or an entire mail address. Thus, no parent domain or parent network search is done, and user@domain mail addresses are
not broken up into their user and domain constituent parts, nor is user+foo broken up into user and foo.
Patterns are applied in the order as specified in the table, until a pattern is found that matches the search string.
Substitution of substrings from the matched expression into the result string is possible using the conventional perl syntax ($1, $2,
etc.). The macros in the result string may need to be written as ${n} or $(n) if they aren't followed by whitespace.
EXAMPLE SMTPD ACCESS MAP
# Protect your outgoing majordomo exploders
/^(?!owner-)(.*)-outgoing@/ 550 Use ${1}@${2} instead
# Bounce friend@whatever, except when whatever is our domain (you would
# be better just bouncing all friend@ mail - this is just an example).
/^friend@(?!my.domain)/ 550 Stick this in your pipe $0
# A multi-line entry. The text is sent as one line.
#
/^noddy@my.domain$/
550 This user is a funny one. You really don't want to send mail to
them as it only makes their head spin.
EXAMPLE HEADER FILTER MAP
/^Subject: make money fast/ REJECT
/^To: friend@public.com/ REJECT
SEE ALSO
regexp_table(5) format of POSIX regular expression tables
AUTHOR(S)
The PCRE table lookup code was originally written by:
Andrew McNamara
andrewm@connect.com.au
connect.com.au Pty. Ltd.
Level 3, 213 Miller St
North Sydney, NSW, Australia
Adopted and adapted by:
Wietse Venema
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA
PCRE_TABLE(5)