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Full Discussion: Filtering out comments from COBOL programs
Top Forums Shell Programming and Scripting Filtering out comments from COBOL programs Post 302997285 by wbport on Wednesday 10th of May 2017 04:48:32 PM
Old 05-10-2017
Filtering out comments from COBOL programs
In SCO Unix, I have a working script to give me a list of COBOL (files end in .cbl) programs containing a specific variable ($1) on a line which is not a comment. The output of the first grep will be the full path to a file, a colon, and the contents of the line where this variable is found.

The usual way to comment a line is to place an asterisk(*) in column 7 so a grep which excludes a colon, six characters which could be anything, and an asterisk works. I am trying to take out a type of comment starting with spaces or tabs followed by "*>" but thus far, no progress.
Code:
grep $1 /u/dir1/cobsrc/cpy/*.cbl | grep -v ":......\*" |\
   grep -v -E ":[  ]*\*>" >>/usr/tmp/a.x$tstamp

I am trying to insert the "grep -v -E" and the bracket contains a space and a tab. This new grep doesn't filter out anything.

The script ends when a sed reads the temporary file and takes out the colon and everything that follows it which is then passed to sort -u.

TIA
 

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LEARN ABOUT LINUX

xzegrep

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 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 							    2010-09-27								 XZGREP(1)
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