Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Running options in bash script
Top Forums Shell Programming and Scripting Running options in bash script Post 303011019 by Cody Learner on Thursday 11th of January 2018 09:54:45 PM
Old 01-11-2018
Running options in bash script
Hello UNIX & Linux Forums community! Long time Linux daily user hobbyist, new to shell scripting....

I'm working on a script that does all the "work" in one script, and makes calls to a second script to display info to the user via mostly expanding variables in heredocs.

I'm contemplating a -q --quiet option to stop the info displaying. Being new to this, I've thought through and tested the following.

However, I'm at a loss as to the terminology used for what I'm trying to do. That leaves me at a loss to find out if my method would be considered bad scripting, and if so, what would be a more appropriate method to easily implement a --quiet option.

The scripts are quite tested and working well at this point. This is more of an afterthought and mental exercise than something really needed.

BTW, I'm manually parsing options without using getopts. I could post the scripts, around 300 lines total, if needed. It's a (current version) bash script, running Arch Linux if it matters. (mostly current version prog's)

Code:
#!/bin/bash


mainfunc () {
    echo "run mainfunc commands"
    $switch    
}

optfunc () {
    echo "run user info extras"
}



normal () { switch=optfunc
}
quiet () { switch=  
}


while    :; do
    case "${1}" in
        -R)     normal ; mainfunc     ;;
       -Rq)     quiet  ; mainfunc    ;;
         *)    break
    esac
    shift
done

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Passing options to a bash script

I'm just not sure where to start looking into this. I want to be able to create switches for my script. Back in the day I'd make my scripts interactive...you know: echo "what report do you want" echo "A)boxes with errors" echo "B)boxes with more than 5 errors" echo "C)Service groups that have... (3 Replies)
Discussion started by: DeCoTwc
3 Replies

2. Shell Programming and Scripting

Script running in bash 3.0 not in 3.2

I have wasted one working day writing this scripts. It compares two folders and make a good tabbed report about their differences. #!/bin/bash function DRAW_DEPTH () { ROUND=$1 while do printf %s " " ROUND=`expr $ROUND - 1` done printf %s "|- " } function MAIN () {... (9 Replies)
Discussion started by: trutoman
9 Replies

3. Shell Programming and Scripting

bash script to compile multiple .c files with some options

I'm trying to write a bash script and call it "compile" such that running it allows me to compile multiple files with the options "-help," "-backup," and "-clean". I've got the code for the options written, i just can't figure out how to read the input string and then translate that into option... (5 Replies)
Discussion started by: travis.batzer
5 Replies

4. UNIX for Dummies Questions & Answers

Running set options from the command line and bash command

I'm reading about debugging aids in bash and have come across the set command. It says in my little book that an addition to typing set you can also use them "on the command line when running a script..." and it lists this in a small table: set -o option Command Line... (5 Replies)
Discussion started by: Straitsfan
5 Replies

5. Homework & Coursework Questions

how to create new options of "dd command" using bash script?

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: Creating bash script the dd command and its new options (-l -U) -l options to lowercase contents of file -U... (2 Replies)
Discussion started by: katherineskye1
2 Replies

6. UNIX for Advanced & Expert Users

how to add new options in bash script

what i want to be is that i would like to reinvent new options that have the same functionality as ... -u is the same functionality of conv=ucase and -l have the same functionality as conv=lcase... is there a way that i can put these in my script so that whenever i will typed in command... (12 Replies)
Discussion started by: aphryllyn1
12 Replies

7. Shell Programming and Scripting

Reading command line options from bash script

I have the following code and I am calling it using ./raytrac.bash -u and getting problems. For some reason opt_usage is still 0. opt_usage=0 iarg=0 narg=$# while (($iarg < $narg)) do (( iarg = $iarg + 1 )) arg=$argv usrInputFlag=`echo $arg | awk '/=/ {print 1}; ! /=/... (22 Replies)
Discussion started by: kristinu
22 Replies

8. Shell Programming and Scripting

script running by sh but not by bash

execute the attached script as, bash -x INFA_MAP_GEN_XML.sh "/export/home/e120945/INFORMATICA_MAPPING_GENERATOR/SOURCE" "INFA_TEMPLATE.csv" "/export/home/e120945/INFORMATICA_MAPPING_GENERATOR/TARGET" "UNIX" "/export/home/e120945/INFORMATICA_MAPPING_GENERATOR/SETUP"... (5 Replies)
Discussion started by: 120945
5 Replies

9. Shell Programming and Scripting

Bash shell script to check if script itself is running

hi guys we've had nagios spewing false alarm (for the umpteenth time) and finally the customer had enough so they're starting to question nagios. we had the check interval increased from 5 minutes to 2 minutes, but that's just temporary solution. I'm thinking of implementing a script on the... (8 Replies)
Discussion started by: hedkandi
8 Replies

10. Shell Programming and Scripting

Running a remote script with automatic options

I'm trying to run a script that will remotely copy another script to remote host and run copied script to remote server with automatic options- #! /bin/bash HOSTNAME="1 2" for HOST in $HOSTNAME; do scp diskFrag.sh login@$HOST:/home/login sleep 30 ssh login@$HOST... (2 Replies)
Discussion started by: Mannu2525
2 Replies

LEARN ABOUT LINUX

service

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

NAME

       service - run a System V init script

SYNOPSIS

       service SCRIPT COMMAND [OPTIONS]

       service --status-all

       service --help | -h | --version

DESCRIPTION

       service runs a System V init script in as predictable environment as possible, removing most environment variables and with current working
       directory set to /.

       The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT.  The  supported  values  of  COMMAND  depend  on  the
       invoked	script,  service  passes  COMMAND and OPTIONS it to the init script unmodified.  All scripts should support at least the start and
       stop commands.  As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the  start
       command.

       service --status-all runs all init scripts, in alphabetical order, with the status command.

EXIT CODES

       service calls the init script and returns the status returned by it.

FILES

       /etc/init.d
	      The directory containing System V init scripts.

ENVIRONMENT

       LANG, TERM
	      The only environment variables passed to the init scripts.

SEE ALSO

       /etc/init.d/skeleton,
       update-rc.d(8),
       init(8),
       invoke-rc.d(8).

								     Jan 2006								service(8)
All times are GMT -4. The time now is 03:39 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy