Issue with condition "if then elif else fi" Post: 303023344

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Top Forums Shell Programming and Scripting Issue with condition "if then elif else fi" Post 303023344 by MadeInGermany on Friday 14th of September 2018 11:56:12 AM

09-14-2018

Registered User

First of all, an if-elif-else-fi that queries one variable (here: $1) can be more efficiently done by a case-;;-;;-esac.
Then, if the following code is similar enough for each condition, it is advisable to set variables that control the exact behavior in the following common code.
Example:

Code:

#!/bin/bash
# branch on $1, set distinct variables
case $1 in
("REP1")
    liste=/data/folder1
    text1="LISTEREP1"
    text2="REP1 AND REP2"
;;
("REP2")
    liste=/data/folder2
    text1="LISTEREP2"
    text2="REP1 AND REP2"
;;
("REP3")
    liste=/data2/folder3
    text1="LISTEREP3"
    text2="REP3 AND REP4"
;;
("REP4")
    liste=/data2/folder4
    text1="LISTEREP4"
    text2="REP3 AND REP4"
;;
(*)
    echo "unsupported argument '$1'"
    exit 1
;;
esac

# common code
echo "$text1 : $liste"
liste_rep=$liste/$2/$3
echo "DO LOOP FOR $text2 :${1}" $liste_rep
for printlist in $list_rep
do
   echo "SHOULD_LOOP_${1}:" $liste_rep
done

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script

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)