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Top Forums Shell Programming and Scripting sort with condition and insert blank line Post 302526004 by kumaran_5555 on Monday 30th of May 2011 03:59:04 AM
Old 05-30-2011
Do you have any ####### line between

Code:
[abc:/bcd/cde]
@test_write = rw  
[bcd:/xyz/yzx]
@test= rw

---------- Post updated at 01:29 PM ---------- Previous update was at 01:21 PM ----------

Try this one:
Code:
    awk '{
if($0~/^\[/)
{
    n =asort(arr)
    for(i=1;i<=n;i++)
    printf "%s\n",arr[i] 
    delete arr
    if(temp!=""){print temp}
    print $0
    temp=""
    
}
else if($0!~/^\#/)
{
    arr[substr($0,0,3)]=arr[substr($0,0,3)]$0"\n ";
}
else
{
    temp=$0
}
}

END{n =asort(arr);for(i=1;i<=n;i++){printf "%s\n",arr[i] };print temp}' test.txt


It perfectly worked for me,

Last edited by kumaran_5555; 05-30-2011 at 05:12 AM..
 

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SORT(1) 						      General Commands Manual							   SORT(1)

NAME
sort - sort a file of ASCII lines SYNOPSIS
sort [-bcdfimnru] [-tc] [-o name] [+pos1] [-pos2] file ... OPTIONS
-b Skip leading blanks when making comparisons -c Check to see if a file is sorted -d Dictionary order: ignore punctuation -f Fold upper case onto lower case -i Ignore nonASCII characters -m Merge presorted files -n Numeric sort order -o Next argument is output file -r Reverse the sort order -t Following character is field separator -u Unique mode (delete duplicate lines) EXAMPLES
sort -nr file # Sort keys numerically, reversed sort +2 -4 file # Sort using fields 2 and 3 as key sort +2 -t: -o out # Field separator is : sort +.3 -.6 # Characters 3 through 5 form the key DESCRIPTION
Sort sorts one or more files. If no files are specified, stdin is sorted. Output is written on standard output, unless -o is specified. The options +pos1 -pos2 use only fields pos1 up to but not including pos2 as the sort key, where a field is a string of characters delim- ited by spaces and tabs, unless a different field delimiter is specified with -t. Both pos1 and pos2 have the form m.n where m tells the number of fields and n tells the number of characters. Either m or n may be omitted. SEE ALSO
comm(1), grep(1), uniq(1). SORT(1)
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