Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Using awk to find sentences.
Top Forums Shell Programming and Scripting Using awk to find sentences. Post 302732873 by Scrutinizer on Monday 19th of November 2012 09:53:29 AM
Old 11-19-2012
The regex: "([^)(]\+ [0-9]\{4\})" is not extended regex but GNU basic regex...
This is the same with POSIX extended regex:
Code:
grep -Eo '\([^)]+ [0-9]{4}\)' infile

if your grep supports the -o option then it will return the occurrences on a single line. Without the -o option (just grep -E) it will return the results on a single line plus the line the pattern was found on...

Likewise awk:
Code:
awk '/\([^)]+ [0-9]{4}\)/' infile

Would return the pattern plus the line it was found on:

Try something like this for multi-line results:
Code:
awk 'NR>1 && $1~/^[^)]+ [0-9]{4}$/{print RS $1 FS}' RS=\( FS=\) infile

GNU awk prior to 4.0 does not support repetition ({4}) by default. Use (g)awk --posix
Last edited by Scrutinizer; 11-20-2012 at 01:47 AM.. Reason: Mention gawk version as suggested by Alister..
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

spliting up sentences

hello, i'm looking to split up text into a list of words but can't figure it out, any help would be great. thanks steven (2 Replies)
Discussion started by: stevox
2 Replies

2. Shell Programming and Scripting

Anyways to find sentences with data format and extract it???

Hi guys,i got this problem which is..i need to find those sentences with date inside and extract them out,the input is somehow like this eg: $DATA42.GANTRY2.GA161147 DISKFILE 2007-10-16 11:56:45 SUPER.OPR \NETS.$Y4CB.#IN ... (4 Replies)
Discussion started by: cyberray
4 Replies

3. Shell Programming and Scripting

How to identify sentences from a text?

Hi, I have to identify sentences from this text. If i split these statements by this way: @sentence= split(/\.\W*/,$text); I will get these following things also in the output along with proper sentences. Biol Reprod. 2002 Mar;66(3):785-95. Egydio de Carvalho C, Tanaka H,... (2 Replies)
Discussion started by: vanitham
2 Replies

4. Shell Programming and Scripting

How to get exact match sentences?

Hi, I have sentences like this: $sent= Protein modeling studies reveal that the RG-rich region is part of a three to four strand antiparallel beta-sheet, which in other RNA binding protein functions as a platform for nucleic acid interactions. Heterogeneous nuclear ribonucleoparticle... (19 Replies)
Discussion started by: vanitham
19 Replies

5. Shell Programming and Scripting

comparing sentences

Hi, I have a file and that file contains the following sentences. Here we show that a virus-encoded transcription factor, viral mRNA, cellular RNA-binding protein heterodimer G3BP/Caprin-1 (p137), translation initiation factors eIF4E and eIF4G, and ribosomal proteins are concentrated in the... (4 Replies)
Discussion started by: vanitham
4 Replies

6. UNIX for Dummies Questions & Answers

How to filter sentences??

Hi, I have few sentences here. $a1="Division of Hematology-Oncology, and Stem cell transplantation, Schneider Childrens Hospital, Albert Einstein College of Medicine, New Hyde Park, New York. "; $a2="Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung... (3 Replies)
Discussion started by: vanitham
3 Replies

7. UNIX for Dummies Questions & Answers

extracting sentences that only contain a word

Hi guys Need your help how do I extract sentences with only a word i.e. today is hot hot very humid humid2 Sample output hot very (0 Replies)
Discussion started by: jamestan
0 Replies

8. Shell Programming and Scripting

extracting sentences that only contain a word

Hi guys Need your help how do I extract sentences with only a word i.e. today is hot hot very humid humid2 Sample output hot (6 Replies)
Discussion started by: jamestan
6 Replies

9. Shell Programming and Scripting

Adding tags in between sentences with awk

Hi, I need an awk to modify the following file. It is 2-column tab-separated. Hi PP my VBD name DT is NN . SENT Her PP name VBD is DT the NN same WRT . SENT <s> Hi PP - (6 Replies)
Discussion started by: owwow14
6 Replies

10. Shell Programming and Scripting

How to use $variable in conditional sentences?

Hello all I am doing a Makefile but I can't return the value of $var to use it in conditional sentences: #!/bin/sh GO=$(shell) go GOPATH=$(GO) env GOPATH make: @$(GOPATH) @if ; then mkdir -p "$(GOPATH)/bin" ; fi When I type "make", @$GOPATH returns /home/icvallejo/go... (5 Replies)
Discussion started by: icvallejo
5 Replies

LEARN ABOUT X11R4

zgrep

ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep  options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

                                                                                                                                          ZGREP(1)
All times are GMT -4. The time now is 06:24 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy