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Full Discussion: Display header in script output
Top Forums UNIX for Dummies Questions & Answers Display header in script output Post 302865151 by Decoy Octopus88 on Thursday 17th of October 2013 07:19:25 PM
Old 10-17-2013
Bakunin -- Thank you for your detailed explanation. I added the ksh. I took note and saved off your set -xv, and also got a good grasp of how the dash after your print command to ensure your string is not interpreted as a parameter. I took your advice to go back to the original goal of making my header a variable.

Carlos -- Thanks for suggesting the getopts and then the "shift optind", that worked great to shift my parameters back by one.

I really appreciate both of you.

final script

Code:
#!/bin/ksh

header="Albums Artist"
while getopts "h" opt; do
        case $opt in
                h)
print - ${header:+"Albums Artist\n"}
;;
\?)
      print - "Invalid option, use -h to display header: -$OPTARG" >&2
exit 1
;;
esac
done

shift $(($OPTIND - 1))

filename=$1
filename=${filename:?"Filename Missing, include the filename after the \"highest\" script as an arguement."}
howmany=$2
sort -nr "$filename" | head -${howmany:=10}

output

Code:
$ highest.ksh
highest.ksh: line 19: filename: Filename Missing, include the filename after the "highest" script as an arguement.
$

Code:
$ highest.ksh -a albums
highest.ksh: -a: unknown option
Invalid option, use -h to display header: -
$

Code:
$ highest.ksh albums 4 
22 Tom Petty
20 Led Zeppelin
18 Stone Temple Pilots
17 Rolling Stones
$

Code:
$ highest.ksh -h albums 11
Albums Artist

22 Tom Petty
20 Led Zeppelin
18 Stone Temple Pilots
17 Rolling Stones
16 Aerosmith
12 Black Crowes
10 Nirvana
8 Van Halen
5 ACDC
4 The Cult
1 Talking Heads
$

 

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LEARN ABOUT SUSE

sieveshell

SIEVESHELL(1)						User Contributed Perl Documentation					     SIEVESHELL(1)

NAME

       sieveshell - remotely manipulate sieve scripts

SYNOPSIS

       sieveshell [--user=user] [--authname=authname] [--realm=realm] [--exec=script] server[:port]

       sieveshell --help

DESCRIPTION

       sieveshell allows users to manipulate their scripts on a remote server.	It works via MANAGESIEVE, a work in progress.

       The following commands are recognized:

	   list list scripts on server.

	   put <filename> upload script to server.

	   get <name> [<filename>] get script. if no filename display to stdout

	   delete <name> delete script.

	   activate <name> activate script.

	   deactivate deactivate all scripts.

OPTIONS

       -u user, --user=user
	   The authorization name to request; by default, derived from the authentication credentials.

       -a authname, --authname=authname
	   The user to use for authentication (defaults to current user).

       -r realm, --realm=realm
	   The realm to attempt authentication in.

       -e script, --exec=script
	   Instead of working interactively, run commands from script, and exit when done.

REFERENCES

       [MANAGESIEVE] Martin, T.; "A Protocol for Remotely Managing Sieve Scripts", draft-ietf-managesieve-03.txt, Mirapoint, Inc.; May 2001, work
       in progress.

AUTHOR

       Tim Martin <tmartin@mirapoint.com>, and the rest of the Cyrus team <cyrus-bugs@andrew.cmu.edu>.

perl v5.10.0							    2008-04-04							     SIEVESHELL(1)
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