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Full Discussion: Shell script UNIX to read text file line by line
Top Forums Shell Programming and Scripting Shell script UNIX to read text file line by line Post 303006638 by RudiC on Sunday 5th of November 2017 12:59:48 PM
Old 11-05-2017
How about
Code:
{ head -1 ; tail -n+1 |  sort -k2 -k1.1; } < file2 | awk '
$2 != L2        {printf "%c%s ", LF, $2
                 LF = "\n"
                 DL = ""
                 L2 = $2
                }
                {printf "%c%s", DL, $1
                 DL = ","
                }
END             {print ""
                }
'
file_name column_name
file1 col1,col3,col4
file2 col2,col5

 

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LEARN ABOUT SUSE

xzcmp

XZDIFF(1)							     XZ Utils								 XZDIFF(1)

NAME

       xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files

SYNOPSIS

       xzcmp [cmp_options] file1 [file2]
       xzdiff [diff_options] file1 [file2]
       lzcmp [cmp_options] file1 [file2]
       lzdiff [diff_options] file1 [file2]

DESCRIPTION

       xzcmp  and  xdiff invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), or bzip2(1).  All options specified are passed
       directly to cmp or diff.  If only one file is specified, then the files compared are file1 (which must have a suffix of	a  supported  com-
       pression  format)  and  file1 from which the compression format suffix has been stripped.  If two files are specified, then they are uncom-
       pressed if necessary and fed to cmp(1) or diff(1).  The exit status from cmp or diff is preserved.

       The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils.

SEE ALSO

       cmp(1), diff(1), xz(1), gzip(1), bzip2(1), zdiff(1)

BUGS

       Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified.

Tukaani 							    2009-07-05								 XZDIFF(1)
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