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Search for a pattern that exists in the codebase

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# 1  
Old 05-15-2013
Search for a pattern that exists in the codebase
Hello everyone,

I want to search for a specific pattern in the entire codebase that exists.

Pattern:
I need to find wherever there is a harcoded value "Vxxxx" and "GCxxxx" exists in the perl scripts and shell scripts. (where xxxx will be always number)
I need the script name and the value where the pattern exists in the scripts.

Example:
Script filter_update.pl has a hardcoded "V1234".
Then I need teh script name and the value i.e. filter_update.pl and V1234.

Could someone please advice me a script or a command to find this may be using awk,grep or perl.

Really appreciate your time and efforts.
# 2  
Old 05-15-2013
The output format specification is lacking, but the following might work.

First create a shell script named tester:
Code:
#!/bin/ksh
find "${1:-.}" -type f -exec awk -f findGC+V.awk {} +

(note that if you are using a Solaris/SunOS System, use /usr/xpg4/bin/awk, /usr/xpg6/bin/awk, or nawk instead of awk in the above statement)
then make it executable:
Code:
chmod +x tester

then put the following awk script in a file named findGC+V.awk:
Code:
# awk script looking for GCxxxx and Vxxxx (where each x is a digit) as words
# in the given input files. 
BEGIN { FS = "[^[:alnum:]]" }
{       for(i = 1; i <= NF; i++)
                if($i ~ /^(GC|V)[0-9]{4}$/)
                        printf("File: %s String: %s Line: %d\n",
                                FILENAME, $i, FNR)
}

Then if you run it using:
Code:
./tester

it will list each matching string and print a line giving the filename, the string, and the line number within that file where the string was found for each regular file found in file hierarch rooted in the current directory.

If you have a directory named Mixed that contains only a file named GC+V1 that contains:
Code:
1 This is a test "GC1234" in quotes
2 GC2345 should match
3 End of line GC3456
4 should not match GC45678 (too many digits)
5 Triple match GC1357, V2468, & "GC3579"
6 short GC123.
7 leading alpha AGC1234
8 trailing alpha V9876x
9 surrounded [GC0987]{V0123}<GC8765>(V7890)<GC1111>"V2222"'GC3333'

and run the script using the command:
Code:
./tester Mixed

the output produced will be:
Code:
File: Mixed/GC+V1 String: GC1234 Line: 1
File: Mixed/GC+V1 String: GC2345 Line: 2
File: Mixed/GC+V1 String: GC3456 Line: 3
File: Mixed/GC+V1 String: GC1357 Line: 5
File: Mixed/GC+V1 String: V2468 Line: 5
File: Mixed/GC+V1 String: GC3579 Line: 5
File: Mixed/GC+V1 String: GC0987 Line: 9
File: Mixed/GC+V1 String: V0123 Line: 9
File: Mixed/GC+V1 String: GC8765 Line: 9
File: Mixed/GC+V1 String: V7890 Line: 9
File: Mixed/GC+V1 String: GC1111 Line: 9
File: Mixed/GC+V1 String: V2222 Line: 9
File: Mixed/GC+V1 String: GC3333 Line: 9

Of course the intent is that you can run the command:
Code:
./tester source_root_directory

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