04-15-2010
doesn't work
Anbu23,
Thanks, but this finds != in if statements and lines with variable names that have 'if' in them.
---------- Post updated at 11:50 AM ---------- Previous update was at 11:35 AM ----------
Vbe,
May end up with 2 responses to you - i tried editing response to Anbu23 to add response to you, but it doesn't look like it took. At that time I hadn't found the combination that worked, but this does. Thanks for your response.
cat *.cpp | egrep "^if\b*\(.+=[^=]*" | egrep -v "=="
Part of the exercise was to understand regular expressions. I am still interested in why my expression wasn't eliminating the 2nd = if someone can figure that out. Also, I am still getting the unbalanced expression if I use grep. Any idea why that is?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
guys,
my requirment goes like this:
I have a file, and wish to filter out records where
1. The first letter is o or O
and
2. The next 4 following letter should not be ther
I do not wish to use pipe and wish to do it in one shot.
The best expression I came up with is:
grep ^*... (10 Replies)
Discussion started by: RishiPahuja
10 Replies
2. UNIX for Advanced & Expert Users
When i do ls -ld RT_BP* i am getting the following list.
drwxrwx--- 2 user group 256 Oct 17 10:09 RT_BP809
drwxrwx--- 2user group 256 Oct 17 10:09 RT_BP809.O
drwxrwx--- 2 user group 256 Oct 17 10:09 RT_BP810
drwxrwx--- 2user group 256 Oct... (2 Replies)
Discussion started by: ukatru
2 Replies
3. Shell Programming and Scripting
Hi, guys. I have one question, hope somebody can give me a hand
I have a file called passwd, the contents of it arebelow:
***********************
...
goldsimj:x:5008:200:
goldsij2:x:5009:200:
whitej:x:5010:201:
brownj:x:5011:202:
goldsij3:x:5012:204:
greyp:x:5013:203:
...... (6 Replies)
Discussion started by: daikeyang
6 Replies
4. Shell Programming and Scripting
please can someone tell me what the following regrex means
grep "^aa*$" <file>
I thought this would match any word beginning with aa and ending with $, but it doesnt.
Thanks in advance
Calypso (7 Replies)
Discussion started by: Calypso
7 Replies
5. Shell Programming and Scripting
Hi,
I am executing a svnlook command to check to see if the following line exists. I need a regular expression to represent the line.
A /test/test1/qa/test2/index.html
A /test/test1/qa/test3/test.jpg
A /test/test1/qa/test3/test1.jpg
A /test/test1/qa/test4/test.swf
I just need to extract... (9 Replies)
Discussion started by: kminkeller
9 Replies
6. Shell Programming and Scripting
I'm trying to math all class references in a C++ file using grep with regular expression. I'm trying to know if a specific include is usuless or not, so I have to know if there is a refence in cpp.
I wrote this RE that searches for a reference from class ABCZ, but unfortunately it isn't working... (0 Replies)
Discussion started by: passerby
0 Replies
7. Shell Programming and Scripting
Hi,
Input file:
-13-
-1er-
-1xyz1-
-1xz12-
-2ab1-
-2ab2--
-143-
Code:
grep '^*\-' input.txt
Wrong output:
-13-
-1xyz1-
-2ab1-
-2ab2-- (4 Replies)
Discussion started by: dragon.1431
4 Replies
8. Programming
Hi all,
How am I read a file, find the match regular expression and overwrite to the same files.
open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat";
open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat";
while (<DESTINATION_FILE>)
{
# print... (1 Reply)
Discussion started by: jessy83
1 Replies
9. Shell Programming and Scripting
Hi ,
I have few lines like
A20120101.ANU.ZIP
A20120401.ABC.ZIP
A20120105.KJK.ZIP
A20120809.JUG.ZIP
A20120101.MAT.ZIP
B20120301.ANU.XIP
I want to filter by
1. Files starting with A and Ending With Z ( ^A.*.ZIP$)
2. And either ANU, or KJK or MAT in the file name.
Hope my... (6 Replies)
Discussion started by: Anupam_Halder
6 Replies
10. UNIX for Beginners Questions & Answers
I want to track only below:
I am using below, but it doesn't work: (6 Replies)
Discussion started by: proactiveaditya
6 Replies
XZGREP(1) XZ Utils XZGREP(1)
NAME
xzgrep - search compressed files for a regular expression
SYNOPSIS
xzgrep [grep_options] [-e] pattern file...
xzegrep ...
xzfgrep ...
lzgrep ...
lzegrep ...
lzfgrep ...
DESCRIPTION
xzgrep invokes grep(1) on files which may be either uncompressed or compressed with xz(1), lzma(1), gzip(1), or bzip2(1). All options
specified are passed directly to grep(1).
If no file is specified, then the standard input is decompressed if necessary and fed to grep(1). When reading from standard input,
gzip(1) and bzip2(1) compressed files are not supported.
If xzgrep is invoked as xzegrep or xzfgrep then egrep(1) or fgrep(1) is used instead of grep(1). The same applies to names lzgrep, lze-
grep, and lzfgrep, which are provided for backward compatibility with LZMA Utils.
ENVIRONMENT
GREP If the GREP environment variable is set, xzgrep uses it instead of grep(1), egrep(1), or fgrep(1).
SEE ALSO
grep(1), xz(1), gzip(1), bzip2(1), zgrep(1)
Tukaani 2009-07-05 XZGREP(1)