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Rui F Ribeiro
Rui F Ribeiro
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I'm new to using this :

for example ./imgSorter.sh -d directory -f format

the scripts' content is :

#!/bin/bash while getopts ":d:f:" opt; do case $opt in d) echo "-d was triggered with $OPTARG" >&2 ;; f) echo "-f was triggered with $OPTARG" >&2 ;; \?) echo "Invalid option: -$OPTARG" >&2 exit 1 ;; :) echo "Option -$OPTARG requires an argument." >&2 exit 1 ;; esac done

use cases :

$ ./imgSorter.sh -d myDir -d was triggered with myDir OK

$ ./imgSorter.sh -d -f myFormat -d was triggered with -f NOK : how is it that a string beginning with - is not detected as a flag ?

I'm new to using this :

for example ./imgSorter.sh -d directory -f format

the scripts' content is :

#!/bin/bash while getopts ":d:f:" opt; do case $opt in d) echo "-d was triggered with $OPTARG" >&2 ;; f) echo "-f was triggered with $OPTARG" >&2 ;; \?) echo "Invalid option: -$OPTARG" >&2 exit 1 ;; :) echo "Option -$OPTARG requires an argument." >&2 exit 1 ;; esac done

use cases :

$ ./imgSorter.sh -d myDir -d was triggered with myDir OK

$ ./imgSorter.sh -d -f myFormat -d was triggered with -f NOK : how is it that a string beginning with - is not detected as a flag ?

I'm using this :

for example ./imgSorter.sh -d directory -f format

the scripts' content is :

#!/bin/bash while getopts ":d:f:" opt; do case $opt in d) echo "-d was triggered with $OPTARG" >&2 ;; f) echo "-f was triggered with $OPTARG" >&2 ;; \?) echo "Invalid option: -$OPTARG" >&2 exit 1 ;; :) echo "Option -$OPTARG requires an argument." >&2 exit 1 ;; esac done

use cases :

$ ./imgSorter.sh -d myDir -d was triggered with myDir OK

$ ./imgSorter.sh -d -f myFormat -d was triggered with -f NOK : how is it that a string beginning with - is not detected as a flag ?

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St3an
St3an
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how to properly parse shell script flags and arguments using getopts

I'm new to using this :

for example ./imgSorter.sh -d directory -f format

the scripts' content is :

#!/bin/bash while getopts ":d:f:" opt; do case $opt in d) echo "-d was triggered with $OPTARG" >&2 ;; f) echo "-f was triggered with $OPTARG" >&2 ;; \?) echo "Invalid option: -$OPTARG" >&2 exit 1 ;; :) echo "Option -$OPTARG requires an argument." >&2 exit 1 ;; esac done

use cases :

$ ./imgSorter.sh -d myDir -d was triggered with myDir OK

$ ./imgSorter.sh -d -f myFormat -d was triggered with -f NOK : how is it that a string beginning with - is not detected as a flag ?