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Full Discussion: finding string in very long file without newlines
Top Forums UNIX for Dummies Questions & Answers finding string in very long file without newlines Post 302410781 by thegeek on Tuesday 6th of April 2010 10:50:02 PM
Old 04-06-2010
append newline after every 80 character as...

Code:
sed 's/\(.\{80\}\)/\1\n/g' inputfile

And that is not a literal \ and n, it is new line. Also if you wanted to see particular string instead of whole line as output, use -o option in grep.

Code:
grep -o 'string' file

 

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LEARN ABOUT MINIX

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)
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