直接写:
if [ "$library" == "zlib" ]then
echo "${library} is included"
fi
testt=$(date +%Y-%m-%d)date2="14/08/12"
test=20
testtt="${test}${date2}"
time1=$(date +%s -d "$testt" )
time2=$(date +%s -d "$testtt" )
time=$(($time1-$time2))
echo $time
改成引号,去掉括号!!
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