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Operating Systems OS X (Apple) Need Help with GREP REGEX scripts for common BB-EDIT text-editing Post 302610457 by methyl on Wednesday 21st of March 2012 09:43:53 AM
Old 03-21-2012
I don't think that the grep command is going to help because grep never changes the file.
You will need a sed command to read your input file, edit the data and produce a new corrected output file.

Best suggestion is to re-post in Shell Scripting after condensing your post to the basics.
The normal line terminator for text files in MACOS depends on the Operating System version. Please post the exact version of your O/S and state what is the normal line terminator in a text file for your version of MACOS. Please post an example input file and the expected output and explain the process concisely.

The output from this (coincidentally) sed command on a representative sample portion of the input file should clear up any ambiguities about the text file format and make the extraneous characters visible.
Code:
sed -n l filename


Last edited by methyl; 03-21-2012 at 10:54 AM.. Reason: try to be unambiguous
 

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GZGREP(1)						      General Commands Manual							 GZGREP(1)

NAME
gzgrep, gzegrep, gzfgrep - search possibly compressed files for a regular expression SYNOPSIS
gzgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
gzgrep is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci- fied, 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 gzgrep is invoked as gzegrep or gzfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, gzgrep uses it as the grep program to be invoked. For example: for sh: GREP=fgrep gzgrep string files for csh: (setenv GREP fgrep; gzgrep string files) AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), egrep(1), fgrep(1), gzdiff(1), gzmore(1), gznew(1), gzforce(1), gzip(1), gzexe(1) ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgzip | +--------------------+-----------------+ |Interface Stability | External | +--------------------+-----------------+ NOTES
Source for gzip is available in the SUNWgzipS package. GZGREP(1)
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