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Full Discussion: Bash Command To Delete Number from Array
Top Forums Shell Programming and Scripting Bash Command To Delete Number from Array Post 302852941 by Don Cragun on Thursday 12th of September 2013 05:16:58 PM
Old 09-12-2013
Both bash and ksh shell variable arrays have limits on the number of elements you can have in an array. If your daily logs could ever grow to more than a couple of thousand lines, you might want to consider a way that doesn't care about those limits.

The following awk script should work as long as the "Started at:" line is always the 4th line in a day's log entries:
Code:
awk '!h && $NF=="****************************************************************" {
    # This is the 1st line of a 4 line header.
    if(f) close(f);     # Close previous output file.
    h=1                 # Set header line number.
}
h { H[h]=$0 # Save header lines 1-4.
    if(h++==4) {
        # Set output file name from time/date stamp at end of 4th header line:
        #                   day    month   last 2 digits of year         time
        f = "output.log_" $(NF-2) $(NF-3) substr($NF,length($NF)-1) "_" $(NF-1)
        # Copy the headers to the output file.
        printf("%s\n%s\n%s\n%s\n", H[1], H[2], H[3], H[4]) > f
        h=0     # We are done with the headers for this log.
    }   
    next
}
{   print > f   # Copy remaining lines to the output file.
}' input

If you want to try this on a Solaris/SunOS system, use /usr/xpg4/bin/awk, /usr/xpg6/bin/awk, or nawk instead of awk.
 

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LEARN ABOUT SUNOS

shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The  following  default	shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh,
       /bin/tcsh,  /bin/zsh,  /sbin/jsh,  /sbin/sh,  /usr/bin/bash,  /usr/bin/csh,  /usr/bin/jsh,  /usr/bin/ksh,  /usr/bin/pfcsh,  /usr/bin/pfksh,
       /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh. Note that /etc/shells overrides the default list.

       Invalid shells in /etc/shells may cause unexpected behavior (such as being unable to log in by way of ftp(1)).

FILES

       /etc/shells	       lists shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.10							    4 Jun 2001								 shells(4)
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