08-12-2010
Please, post a sample of your input file and the required output.
Jean-Pierre.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Sorry if this has been posted before, I searched but not sure what I really want to do.
I have a file with records that show who has logged into my application:
2003-03-14:I:root: Log_mesg: registered servername:userid. (more after this)
I want to pull out the userid, date and time into... (2 Replies)
Discussion started by: MizzGail
2 Replies
2. Shell Programming and Scripting
Hi all,
I have a flatfile
I would like to get ext = 7950 , how do I do that ?
if ($1 == "CTI-ProgramStart") {
ext = substr($9,index($9,"Extension")+11,4);
But why it is not working ???? Please help .
Thanks (1 Reply)
Discussion started by: sabercats
1 Replies
3. UNIX for Dummies Questions & Answers
i have a variable 200612
the last two digits of this variable should be between 1 and 12, it should not be greater than 12 or less than 1 (for ex: 00 or 13,14,15 is not accepted)
how do i check for this conditions in a unix shell script.
thanks
Ram (3 Replies)
Discussion started by: ramky79
3 Replies
4. Shell Programming and Scripting
Hi
I have multiple files that name begins bidb_yyyymm. (yyyymm = current year month of file creation).
What I want to do is look at the files and where yyyymm is older than 1 month I want to remove the file from the server.
I was looking at looping through the files and getting the yyyymm... (2 Replies)
Discussion started by: colesga
2 Replies
5. UNIX for Dummies Questions & Answers
I have a variable '$test' that has the following string value:
$test = 123|456|789|0123
How would I select just the first element ('123') using awk.
Note: '|' is the delimiter, and the length of each field can vary.
Thanks,
- CB (3 Replies)
Discussion started by: ChicagoBlues
3 Replies
6. Shell Programming and Scripting
HI I am using awk and substr function to list out the directory names in the present working directory .
I am using below code
ls -l | awk '{ if ((substr($1,1,1)) -eq d) {print $9 }}'
But the problem is i am getting all the files and directories listed where as the requirement i wrote... (7 Replies)
Discussion started by: prabhu_kumar
7 Replies
7. Shell Programming and Scripting
Hi to all,
I'm here again, cause I need your help to solve another issue for me.
I have some files that have this name format: date_filename.csv
In my shell I must rename each file removing the date so that the file name is filename.csv
To do this I use this command:
fnames=`ls ${fname}|... (2 Replies)
Discussion started by: leobdj
2 Replies
8. Shell Programming and Scripting
Hello life savers!!
Is there any way to use substr in awk command for returning one part of a string from declared start and stop point?
I mean I know we have this:
substr(string, start, length)
Do we have anything like possible to use in awk ? :
substr(string, start, stop)
... (9 Replies)
Discussion started by: @man
9 Replies
9. Shell Programming and Scripting
Hi,
- In a file test.wmi
Col1 | firstName | lastName
4003 | toto_titi_CT- | otot_itit
- I want to have only ( colones $7,$13 and $15) with code 4003 and 4002. for colone $13 I want to have the whole name untill _CT- or _GC-
1- I used the command egrep with awk
#egrep -i... (2 Replies)
Discussion started by: georg2014
2 Replies
10. Shell Programming and Scripting
Hello All;
I have an input file 'abc.txt' with below text:
512345977,213458,100021
512345978,213454,100031
512345979,213452,100051
512345980,213455,100061
512345981,213456,100071
512345982,213456,100091
512345983,213457,100041
512345984,213451,100011
I need to paste the first field... (10 Replies)
Discussion started by: mystition
10 Replies
REGEXP(6) Games Manual REGEXP(6)
NAME
regexp - regular expression notation
DESCRIPTION
A regular expression specifies a set of strings of characters. A member of this set of strings is said to be matched by the regular
expression. In many applications a delimiter character, commonly bounds a regular expression. In the following specification for regular
expressions the word `character' means any character (rune) but newline.
The syntax for a regular expression e0 is
e3: literal | charclass | '.' | '^' | '$' | '(' e0 ')'
e2: e3
| e2 REP
REP: '*' | '+' | '?'
e1: e2
| e1 e2
e0: e1
| e0 '|' e1
A literal is any non-metacharacter, or a metacharacter (one of .*+?[]()|^$), or the delimiter preceded by
A charclass is a nonempty string s bracketed [s] (or [^s]); it matches any character in (or not in) s. A negated character class never
matches newline. A substring a-b, with a and b in ascending order, stands for the inclusive range of characters between a and b. In s,
the metacharacters an initial and the regular expression delimiter must be preceded by a other metacharacters have no special meaning and
may appear unescaped.
A matches any character.
A matches the beginning of a line; matches the end of the line.
The REP operators match zero or more (*), one or more (+), zero or one (?), instances respectively of the preceding regular expression e2.
A concatenated regular expression, e1e2, matches a match to e1 followed by a match to e2.
An alternative regular expression, e0|e1, matches either a match to e0 or a match to e1.
A match to any part of a regular expression extends as far as possible without preventing a match to the remainder of the regular expres-
sion.
SEE ALSO
awk(1), ed(1), sam(1), sed(1), regexp(2)
REGEXP(6)