Sponsored Content
Top Forums Shell Programming and Scripting Identify problem with while getopts Post 302978475 by Don Cragun on Sunday 31st of July 2016 02:50:07 AM
Old 07-31-2016
If you are trying to have 4 scenarios, why does you script run the usage macro in three of the 4 scenarios (only moving on to the final two echo commands in your script if both options are present on the command line?

Please describe what you want your script to do in these 4 scenarios. Without knowing what these 4 scenarios are, I don't see how we can guess at how to correct your script.

And, what is the format of the -i and -e option-arguments. From your code I assume that the strings include: or exclude:, respectively, must occur somewhere in the option-arguments (not necessarily at the start of those option-arguments), but why these strings are needed (rather than assumed from the option-letter) is not clear, what else is expected in those option-arguments is not clear, and whether or not some default value should be used for these option-arguments if the options are not specified on the command line is not clear.

Please also show us an actual synopsis for your utility showing the utility name, the options, and operands that are expected in the various valid manners in which your utility can be invoked. (For example, the string -query appears at the end of your usage statement. Is that an indication that there are 4 more options (-q, -u, -r, and -y as well as a -e without an option-argument), or is it another mandatory string that is supposed to appear as the final operand to your utility?

You seem to have several operands that are required to be constant pathnames. Why does a user have to type in a constant pathname when your script could supply it automatically without the user having to type it in every time your script is invoked?
This User Gave Thanks to Don Cragun For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Problem with getopts

I need to parse parameters but the arguments could be NULL,example: > cat getopts.sh while getopts "a:b:" opt 2>/dev/null do case "${opt}" in a) echo "A:${OPTARG}" ;; b) echo "B:${OPTARG}" ;; *) exit 1 ;; esac done > getopts.sh -a TEST1 -b TEST2... (5 Replies)
Discussion started by: Klashxx
5 Replies

2. Shell Programming and Scripting

Problem in getopts

while getopts l:f:s:o:h: c do case $c in l) tail -${OPTARG} /etc/passwd exit 2;; f) head -${OPTARG} /etc/passwd exit 3;; s) grep ${OPTARG} /etc/passwd | cut -d: -f7 exit 4;; o) OARG=$OPTARG exit 5;; h) ... (3 Replies)
Discussion started by: nadman123
3 Replies

3. Shell Programming and Scripting

problem with getopts

Hi, I am a new member to unix.com. Actually I am facing a problem with getopts. In my script i have used getopts to parse the parameters. when i use the script as shown below its working fine: find_status -p all ### where find_status is a script name. But even if I pass more than one... (3 Replies)
Discussion started by: pvamsikr
3 Replies

4. UNIX for Advanced & Expert Users

getopts problem

i was going through the man page of getopts this particular section is not clear to me can anyone please clarify in a little detail so that i can understand the concept MANPAGE:: Since getopts affects the current shell execution environ- ment, it is generally provided as a... (7 Replies)
Discussion started by: mobydick
7 Replies

5. HP-UX

using getopts

Is there a restriction on levels of using 'getopts' ? I have several scripts, each of which requires an option as the first parameter . If I call one prg separately it works fine, but when one prg calls another prg and passes the option on the called prg, then the called prg seems not to process... (3 Replies)
Discussion started by: vslewis
3 Replies

6. Shell Programming and Scripting

getopts problem

How do I get the getopts command to display whats written at my help option if no option is types in? For example, myscript.sh -h will bring up my help option, however, I also want myscript.sh to do the same! #!/bin/bash while getopts :abh opt do case "$opt" in... (2 Replies)
Discussion started by: linuxkid
2 Replies

7. Shell Programming and Scripting

getopts problem

Hi everyone I want to know how can we pass multiple argument in getopts suppose PARAMS="abcd" while getopts ${PARMS} FLAG do case ${FLAG} in (a) (b) (c) (d) esac (6 Replies)
Discussion started by: aishsimplesweet
6 Replies

8. Shell Programming and Scripting

getopts - optional and problem to display help

In the below code while getopts :rfw:d:s:a: options do case "$options" in r) echo reverse;; f) echo forward;; w) window=$OPTARG;; d) duration=$OPTARG;; s) search=$OPTARG;; a) value=$OPTARG;; *) help; exit;; esac done ... (2 Replies)
Discussion started by: Amutha
2 Replies

9. Shell Programming and Scripting

Identify function image magick problem - perl

Hi, I got some error when I try to write content from file store into array then for each word that separate by space use identify function to display image information.here is my code #!/usr/bin/perl -w open(FILE,'transfer_file_perl.txt') or die "$!"; my $line = <FILE>;#because it is one... (2 Replies)
Discussion started by: guidely
2 Replies

10. Shell Programming and Scripting

problem with getopts

Hi, I have written a script to take command line arguments using geopts.This is the code. #!/bin/sh # The usage of this script. usage="Usage is $0" usage="$usage " usage="$usage " usage="$usage " # Use the getopt utility to set up the command line flags. set -- `/usr/bin/getopt... (4 Replies)
Discussion started by: arijitsaha
4 Replies
script(1)							   User Commands							 script(1)

NAME
script - make record of a terminal session SYNOPSIS
script [-a] [filename] DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the record is saved in the file typescript. See WARNINGS. The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends when the forked shell exits or when Control-d is typed. OPTIONS
The following option is supported: -a Appends the session record to filename, rather than overwriting it. NOTES
script places everything that appears on the screen in filename, including prompts. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a privileged user, that is, root. Be sure that typescript is not a link before running script. SunOS 5.11 30 Jan 2004 script(1)
All times are GMT -4. The time now is 01:17 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy