01-29-2019
Few simple modifications:
bash code:
#!/bin/bash
VarSize=${1-5} # use $1 if defined, else set VarSize as 5
OptSize=${2-3} # use $2 if defined, else set OptSize as 3
HomeSize=${3-2} # use $3 if defined, else set HomeSize as 2
TmpSize=${4-2} # use $4 if defined, else set TmpSize as 2
# Here you may have extra code to check if all the above variables are numbers and not something else.
# Left as an exercise to the OP.
VarStandard=4
OptStandard=2
HomeStandard=1
TmpStandard=1
if (( VarSize > VarStandard )); then # Why pipe it to bc when bash has provision to perform math
VarAdd=$(( VarSize - VarStandard ))
fi
if (( OptSize > OptStandard )); then
OptAdd=$(( OptSize - OptStandard ))
fi
if (( HomeSize > HomeStandard )); then
HomeAdd=$(( HomeSize - HomeStandard ))
fi
if (( TmpSize > TmpStandard )); then
TmpAdd=$(( TmpSize - TmpStandard ))
fi
if (( $(( VarAdd + OptAdd + HomeAdd + TmpAdd )) == 0 )) ; then
echo "No Space needed"
else
echo "$(( VarAdd + OptAdd + HomeAdd + TmpAdd )) extra space is needed"
fi
These 2 Users Gave Thanks to balajesuri For This Post:
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