Is there a way to take a parameter regardless of what it is and change it to a more specific output.
I'm trying to find a way that I can change M26 (or M27, M28, L26, L27....) to M0000026.00 so later on in the script I can call on the new form of the parameter
I know i could do something like:
./test.sh M26
if [ "$1" = M26 ]
then
set -- "M0000026.00" "${@:1}"
fi
some function to call $1 in file string /..../.../.../$1/.../..
but I'm looking more for a generic way so I don't have to input all the possible if statements for every 3 character parameter I have
If your version of bash supports associative arrays, you can do something like this:
# Declare an associative array to contain your argument mappings
declare -A map=( [M26]="M0000026.00" [M27]="whatever" ["param with spaces"]="foo" )
# Declare a regular array to hold your remapped args
args=()
# Loop through the shell parameters and remap them into args()
while (( $# )); do
# If "$1" exists as a key in map, then use the mapped value.
# Otherwise, just use "$1"
args+=( "${map["$1"]-$1}" )
shift
done
# At this point, you can either just use the args array directly and ignore
# $1, $2, etc.
# Or you can use set to reassign $1, $2, etc from args, like so:
set -- "${args[@]}"
Also, you don't have to declare map on a single line as I did. For maintainability (especially if you have lots of mappings), you can do it like this:
declare -A map=()
map["M26"]="M0000026.00"
map["M27"]="whatever"
...
map["Z99"]="foo bar"