Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: grep source code and exclude comments
Top Forums UNIX for Advanced & Expert Users grep source code and exclude comments Post 302387433 by migurus on Friday 15th of January 2010 06:37:33 PM
Old 01-15-2010
grep source code and exclude comments
I often find myself grepping source code for a variable name and many times the name would be present in comment lines that I 'd prefer not to see. Do you guys know any tricks to filter out comments?

Example:

snippet of the source code
Code:
 
/***
 * type comment 1
 ***/
void    type_func(int rate)
{
  int   vrate = rate < 0 ? rate / (-2) : rate * (+2);
        type = BIN_RATE + vrate;        // current Bin type
        bshx = MAX_TYPE + vrate;
        // no type available
        if(!type)
                return;

plain grep results
Code:
 
$ grep type c.c
 * type comment 1
void    type_func(int rate)
        type = BIN_RATE + vrate;        // current Bin type
        // no type available
        if(!type)

I'd like to be able to see only this:
Code:
 
void    type_func(int rate)
        type = BIN_RATE + vrate;        // current Bin type
        if(!type)

 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

grep - to exclude lines beginning with pattern

11132 13069 11137 11142 13070 Can I use grep command to exclude all lines beginning with 13? I dont want to use grep -v 13 as potentially there will be a number with something like 11013 that I would exclude in error.. (2 Replies)
Discussion started by: frustrated1
2 Replies

2. UNIX for Advanced & Expert Users

how to exclude the GREP command from GREP

I am doing "ps -f" to see my process. but I get lines that one of it represents the ps command itself. I want to grep it out using -v flag, but than I get another process that belongs to the GREP itself : I would like to exclude # ps -f UID PID PPID C STIME TTY TIME CMD... (2 Replies)
Discussion started by: yamsin789
2 Replies

3. UNIX for Dummies Questions & Answers

grep exclude/find single and double quotes

Hello, I'm trying to use grep or egrep to exclude a whole range of characters but how do I exclude both a single and a double quote. It might be easier to say how do I use grep to find both single and double quotes. grep ' ' " ' file grep detects the first single quote within my... (4 Replies)
Discussion started by: Lindy_so
4 Replies

4. Shell Programming and Scripting

Sed script, changing all C-comments to C++-comments

I must write a script to change all C++ like comments: // this is a comment to this one /* this is a comment */ How to do it by sed? With file: #include <cstdio> using namespace std; //one // two int main() { printf("Example"); // three }//four the result should be: (2 Replies)
Discussion started by: black_hawk
2 Replies

5. Shell Programming and Scripting

Using Grep Include/Exclude Files

I wrote this korn script and ran into a hole. I can use find to exclude all the hidden directories and to use my include file/exclude files for running a full backup find / -depth -ipath '/home/testuser/.*' -prune -o -print| grep -f include.mydirs | grep -v -f exclude.mydirs but when I... (8 Replies)
Discussion started by: metallica1973
8 Replies

6. Shell Programming and Scripting

Grep for a srting & exclude two folders

Hi, Below is the command to grep for a string under grep -r "redeem" /home/tom Need to make it case insensitive and exclude logs & tmp folders under /home/tom directory in my Search. Need this in Linux. (1 Reply)
Discussion started by: mohtashims
1 Replies

7. Shell Programming and Scripting

Exclude dash in grep

Hi, I must be overlooking something, but I don't understand why this doesn't work. I'm trying to grep on a date, excluding all the lines starting with a dash: testfile: #2013-12-31 2013-12-31code: grep '^2013-12-31' testfileI'm expecting to see just the second line '2013-12-31' but I don't... (3 Replies)
Discussion started by: Subbeh
3 Replies

8. Shell Programming and Scripting

Grep last two lines, calc & adding comments

....... 06/09/2013|12:00:00 PM|3|26112|40|44032|27419.7|6 1 0 93 |6|1|0|93 06/09/2013|12:30:00 PM|3|26112|40|44032|27491|11 4 0 85 |11|4|0|85 I have "sysperf.out" file containing the lines above. What I like to have on the output is: Node: prod1db ===> this is the hostname Date:... (7 Replies)
Discussion started by: Daniel Gate
7 Replies

9. Shell Programming and Scripting

Exclude multiple lines using grep

Hi, I'm working on a shell script that reports service status on a database server. There are some services that are in disabled status that the script should ignore and only check the services that are in Enabled status. I output the service configuration to a file and use that information to... (5 Replies)
Discussion started by: senthil3d
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 07:20 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy