有沒有shell高手幫忙看看？forFILEinapache-maven-*.tar.gz是什么意思？EXISTS=$(awss3lss3://lang-jvm/${NAME}.tar.gz--profilelang-jvm)這個又是什么？#!/usr/bin/envbash#failhardset-opipefail#failharderset-euVENDOR_DIR=$(cd$(dirname$0);pwd)TMPDIR=$(mktemp-d-tmaven-build)echo"--->Downloadingsources..."cd$TMPDIRforMAVENin$(cat${VENDOR_DIR}/sources.txt)doecho"$MAVEN..."curl-O--silent--location$MAVENdoneforFILEinapache-maven-*.tar.gzdoBUILD_DIR=buildNAME=$(echo$FILE|sed-e's/.*\(maven-[0-9]*.[0-9]*.[0-9]*\).*/\1/g')TARBALL=${NAME}.tar.gzEXISTS=$(awss3lss3://lang-jvm/${NAME}.tar.gz--profilelang-jvm)if[-z"$EXISTS"];thenecho"--->Building$NAME..."mkdir-p$BUILD_DIR/.m2/repositoryecho-n"Unpacking..."tarxzvf$FILE-C$BUILD_DIR&>/dev/nullmv${BUILD_DIR}/apache-maven*${BUILD_DIR}/.mavenecho"done"echo-n"Primingrepositorycache..."cd$BUILD_DIRcp$VENDOR_DIR/sample_pom.xmlpom.xml.maven/bin/mvn-B-Duser.home=$BUILD_DIRcleanpackageverifyinstall:help&>/dev/nullcd-&>/dev/nullecho"done"echo-n"Packaging..."tar-czvf${TARBALL}-C${BUILD_DIR}.maven.m2&>/dev/nullecho"done"echo-n"Uploading..."awss3cp${TARBALL}s3://lang-jvm--profilelang-jvm--aclpublic-read&>/dev/nullecho"done"rm-rf$BUILD_DIRelseecho"--->Skipping$NAME.Packagealreadyexists."fidone#todogetridofthisandjustpipecurltotarrmapache-maven-*