yum list 获取最后可用的包

yum list get last available package

我需要在存储库中提取最新可用包的子字符串

yum list myCompany-apps-MYPROJECT*

可用包

myCompany-apps-MYPROJECT-0.0.0.41-210409.noarch                      1-160                       myproject
myCompany-apps-MYPROJECT-0.0.0.42-210412.noarch                      1-162                       myproject
myCompany-apps-MYPROJECT-0.0.0.43-210412.noarch                      1-163                       myproject
myCompany-apps-MYPROJECT-0.0.0.44-210412.noarch                      1-173                       myproject
myCompany-apps-MYPROJECT-0.0.0.45-210412.noarch                      1-174                       myproject
myCompany-apps-MYPROJECT-0.0.0.46-210412.noarch                      1-176                       myproject
myCompany-apps-MYPROJECT-0.0.0.47-210412.noarch                      1-179                       myproject
myCompany-apps-MYPROJECT-1.0.0.1-210407.noarch                       1-146                       myproject
myCompany-apps-MYPROJECT-1.0.0.2-210407.noarch                       1-147                       myproject
myCompany-apps-MYPROJECT-1.0.0.3-210408.noarch                       1-149                       myproject
myCompany-apps-MYPROJECT-1.0.0.4-210408.noarch                       1-150                       myproject

我想提取 MYPROJECT 之后和日期时间之前的部分

我试过了:

function lastVersion () {
  last_version=$(yum list myCompany-apps-MYPROJECT* | grep "myCompany-apps-MYPROJECT" | awk '{ print  }'| awk -F "-" '{ print  }' | sort -V | tail -1)
  echo ${last_version}
}

输出是:1.0.0.4,我需要它是:0.0.0.47(第 2 列 (1-179) 中指示的最新一个,第 2 列究竟代表什么?)

非常感谢

用正则表达式提取你想要的数据和你想要排序的数据。然后在你要排序的数据上排序,把你感兴趣的数据去掉。

yum ... | grep "myCompany-apps-MYPROJECT" |
    sed 's/.*-\([^-]*\)-[^ ]* *[0-9]*-\([0-9]*\).*/ /' |
    sort -k2n | tail -n1 | cut -d' ' -f1

您可以使用 regexcrosswords ex 快速学习正则表达式。 https://regexcrossword.com/.

多合一 awk 脚本...

... | awk '!/myCompany-apps-MYPROJECT/ {next} 
                                       {sub("-",".",)} 
                                max< {max=; split(,f,"-"); maxV=f[4]} 
                                   END {print maxV}' file

0.0.0.47