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Full Discussion: Reducing text file using similar lines
Top Forums Shell Programming and Scripting Reducing text file using similar lines Post 302782431 by alister on Monday 18th of March 2013 10:54:38 PM
Old 03-18-2013
Finally, a high performance contender has arrived. Step back and eat my dust. Smilie
Code:
#!/bin/sh

while IFS=\; read -r f1 f2 f3 f4 f5; do
    dir=temp/$f1
    if ! [ -d "$dir" ]; then
        mkdir "$dir"
        touch "$dir/2" "$dir/3" "$dir/4" "$dir/5"
    fi
    printf '%s\n' "$f2" >> "$dir/2"
    printf '%s\n' "$f3" >> "$dir/3"
    printf '%s\n' "$f4" | tr '[], ' '[\n*]' | sed '/./!d' >> "$dir/4"
    printf '%s\n' "$f5" | tr '[], ' '[\n*]' | sed '/./!d' >> "$dir/5"
done

ls -ct temp |
while IFS= read -r dir; do
(
    printf '%s\n' "$dir"
    dir=temp/$dir
    paste -sd+ "$dir/2" | bc
    paste -sd+ "$dir/3" | bc
    sort -u "$dir/4" | paste -sd, - | sed 's/,/, /g; s/.*/[&]/'
    sort -u "$dir/5" | paste -sd, - | sed 's/,/, /g; s/.*/[&]/'
) | paste -sd\; -
done

Obviously, that was created purely for amusement. It is not seriously recommended over an AWK (or perl, or ...) solution.

It assumes an empty directory named "temp" in the current working directory and reads data via stdin.

Regards,
Alister
 

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LEARN ABOUT SUSE

runsvchdir

runsvchdir(8)						      System Manager's Manual						     runsvchdir(8)

NAME

       runsvchdir - change services directory of runsvdir(8)

SYNOPSIS

       runsvchdir dir

DESCRIPTION

       dir is a services directory for the use with runsvdir(8).  If dir does not start with a slash, it is searched in /etc/runit/runsvdir/.  dir
       must not start with a dot.

       runsvchdir switches to the directory /etc/runit/runsvdir/, copies current to previous, and replaces current with a symlink pointing to dir.

       Normally /etc/service is a symlink to current, and runsvdir(8) is running /etc/service/.

EXIT CODES

       runsvchdir prints an error message and exits 111 on error.  runsvchdir exits 0 on success.

FILES

	/etc/runit/runsvdir/previous
	/etc/runit/runsvdir/current
	/etc/runit/runsvdir/current.new

SEE ALSO

       runsvdir(8), runit(8), runit-init(8), sv(8), runsv(8)

       http://smarden.org/runit/

AUTHOR

       Gerrit Pape <pape@smarden.org>

																     runsvchdir(8)
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