MPE/iX Shell and Utilities Reference Manual, Vol 1

getopt(1) MPE/iX Shell and Utilities getopt(1)

# Example illustrating use of getopt command. This

# shell script would implement the paste command,

# using getopt to process options, if the underlying

# functionality was embedded in hypothetical utilities

# hpaste and vpaste, which perform horizontal and

# vertical pasting respectively.

paste=vpaste # default is vertical pasting

seplist=" " # default separator is tab

set -- $(getopt -c $0 d:s "$@")

if [$?-ne0]

then print >&2 "Usage: $0 [-s] [-d seplist] file ..."

exit 1

for o

do case "$o" in

-d) shift; seplist="$1"; shift;;

-s) paste=hpaste; shift;;

--) shift; break;;

esac

done

# perform actual paste command

$paste -d "$seplist" "$@"

DIAGNOSTICS

Possible exit status values are:

0 Successful completion.

1 An error occurred.

Messages

Message: Option –option argument missing

Cause: You speciﬁed –option but did not provide the argument that optiondesc indi-

cated.

Action: Provide the missing argument.

Message: Missing -c cmd

Cause: You speciﬁed the –c option but did not provide a command name as its argu-

ment.

Action: Provide the missing argument.

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