Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Matching patterns

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Matching patterns
# 1  
Old 04-02-2011
Matching patterns
I have a file name in $f. If $f has "-" at the beginning, or "=", or does not have extension ".ry" or ".xt" or ".dat" then cerr would not be empty.

Tried the following but having some problems.

Code:
set cerr = `echo $f | awk '/^-|=|!.ry|!.xt|!.dat/'`

Last edited by kristinu; 04-02-2011 at 09:51 PM..
# 2  
Old 04-03-2011
You may need to enclose inside brackets.

Code:
awk `/^(-|=)/ && $0 !~ /(.ry|.xt|.dat)/`

# 3  
Old 04-03-2011
Code:
echo "hello=sdsd.ry" | awk '/(^-|=)/ && $0 !~ /(.ry|.xt|.dat)/'

gives nothing

if there is an = or starts with -, I want it to output the string
# 4  
Old 04-03-2011
Code:
awk '(/^-/||/=/)&&!/(\.ry|\.xt|\.dat)/'

# 5  
Old 04-03-2011
I think it should be

Code:
awk '/(^-|=)/ || ! /(.ry|.xt|.dat)/'`


Quote:
Originally Posted by yinyuemi
Code:
awk '(/^-/||/=/)&&!/(\.ry|\.xt|\.dat)/'

---------- Post updated at 01:34 AM ---------- Previous update was at 01:31 AM ----------

We're getting there.

Yes I needed a "\" before the "." Smilie

---------- Post updated at 01:43 AM ---------- Previous update was at 01:34 AM ----------

Using "hellodfdfxt" gave me no result. There is no ".xt" in it, but just has "xt" in it, so should have printed the string.



Code:
 echo hellodfdfxt | awk '/(^-|=)/ && ! /(\.ry|\.xt|\.dat)/'

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Extended grep not matching some patterns

i have a file where the hostnames and variables are in same line in below format, am able extract some part variables while otherlike subscriptions and handler is missing. can you please correct me if grep is able to perform this ? cat /tmp/test localhost subscriptions='' handler="genie"... (14 Replies)
Discussion started by: rakeshkumar
14 Replies

2. Shell Programming and Scripting

Delete patterns matching

Delete patterns matching OS version: RHEL 7.3 Shell : Bash I have a file like below (pattern.txt). I need to delete all lines starting with the following words (words separated by comma below) and ) character. LOGGING, NOCOMPRESS, TABLESPACE , PCTFREE, INITRANS, MAXTRANS, STORAGE,... (3 Replies)
Discussion started by: John K
3 Replies

3. Shell Programming and Scripting

Finding matching patterns in two files

Hi, I have requirement to find the matching patterns of two files in Unix. One file is the log file and the other is the error list file. If any pattern in the log file matches the list of errors in the error list file, then I would need to find the counts of the match. For example, ... (5 Replies)
Discussion started by: Bobby_2000
5 Replies

4. UNIX for Dummies Questions & Answers

Matching two patterns in the consecutive lines

Hi Experts I need to match 2 patterns consecutively and display 25 lines after that. 1st one - Error 2nd one - End string ( comes along with the pattern one) 3rd one - error Logic grep "ERROR OCCURRED :" trace.log | awk -v "ES=:" -v "SS=java.lang.NullPointerException" '{ if($NF ~... (8 Replies)
Discussion started by: senthil.ak
8 Replies

5. UNIX for Dummies Questions & Answers

Search and extract matching patterns

%%%%% (9 Replies)
Discussion started by: lucasvs
9 Replies

6. UNIX for Dummies Questions & Answers

Find records with matching patterns

Hi, I need to find records with a search string from a file. Search strings are provided in a file. For eg. search_String.txt file is like below chicago mexico newark sanhose and the file from where the records need to be fetched is given below src_file:... (1 Reply)
Discussion started by: sbhuvana20
1 Replies

7. Shell Programming and Scripting

print lines between 2 matching patterns

Hi Guys, I have file like below, I want to print all lines between test1231233 to its 10 occurrence(till line 41) test1231233 qwe qwe qweq123 test1231233 qwe qwe qweq23 test1231233 qwe qwe qweq123 test1231233 qwe qwe qweq123131 (3 Replies)
Discussion started by: jagnikam
3 Replies

8. Shell Programming and Scripting

AWK: matching patterns in 2 different files

In a directory, there are two different file extensions (*.txt and *.xyz) having similar names of numerical strings (*). The (*.txt) contains 5000 multiple files and the (*.xyz) also contains 5000 multiple files. Each of the files has around 4000 rows and 8 columns, with several unique string... (5 Replies)
Discussion started by: asanjuan
5 Replies

9. Shell Programming and Scripting

removing certain paragraphs for matching patterns

Hi, I have a log file which might have certain paragraphs. Switch not possible Error code 1234 Process number 678 Log not available Error code 567 Process number 874 ..... ...... ...... Now I create an exception file like this. cat text.exp Error code 1234 Process number 874 (7 Replies)
Discussion started by: kaushys
7 Replies

10. UNIX for Dummies Questions & Answers

matching 3 patterns in shell script

IN a file I need to check for 3 patterns if all the 3 patterns are in the file. I need to send out an email. All this needs to be done in korn shell script. Please advise. (1 Reply)
Discussion started by: saibsk
1 Replies
Login or Register to Ask a Question