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linux~更新版本号的shell

 2 years ago
source link: https://www.cnblogs.com/lori/p/16068260.html
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linux~更新版本号的shell

一个shell，定义一个函数，版本号做为参数，来更新这个版本号，如1.0，更新结果为1.1

increment_version ()
{
  declare -a part=( ${1//\./ } )
  declare    new
  declare -i carry=1

  for (( CNTR=${#part[@]}-1; CNTR>=0; CNTR-=1 )); do
    len=${#part[CNTR]}
    new=$((part[CNTR]+carry))
    [ ${#new} -gt $len ] && carry=1 || carry=0
    [ $CNTR -gt 0 ] && part[CNTR]=${new: -len} || part[CNTR]=${new}
  done
  new="${part[*]}"
  echo -e "${new// /.}"
} 
version='1.1.9'

increment_version $version

# EXAMPLE   ------------->   # RESULT
increment_version.sh 1.9         # 2.0
increment_version.sh 1.0.0      # 1.0.1
increment_version.sh 1.1        # 1.2
increment_version.sh 1.1.00     # 1.1.01

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