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Full Discussion: search pattern and mark/tag
Top Forums Shell Programming and Scripting search pattern and mark/tag Post 302510730 by rdcwayx on Monday 4th of April 2011 08:12:11 PM
Old 04-04-2011
I guess this is homework, but since Alister has provided the solution, I'd like to provide the other.
Code:
awk 'NR==FNR{a[$1]=$2;next}{print $0,a[$1]}' pattern.file input.file

@ saint2006

Looks you can compare the mark directly in input.file to report the student fail or pass.

If you really want to learn shell, you can try to use input.file get the result directly. Compare the marks if both are great than 60, will be pass, otherwise, will be fail.
 

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LEARN ABOUT XFREE86

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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