sw_vers を 1行で出力

• sw_versは、macOS のバージョンを確認するコマンド

% sw_vers
ProductName:		macOS
ProductVersion:		15.6.1
BuildVersion:		24G90

• 1行で出力する

% sw_vers | xargs | awk '{ print $2 " " $4 " (" $6 ")" }'
macOS 15.6.1 (24G90)

• aliasで定義する

_{（4フィールドにも対応しておく）}

.zshrc

alias vers="sw_vers | xargs | awk '{ if(NF==6){ print \$2 \" \" \$4 \" (\" \$6 \")\" }else{ print \$2 \" \" \$4\$6 \" (\" \$8 \")\"} }'

% vers
macOS 15.6.1 (24G90)

4フィールドの場合

% vers
macOS 13.0(a) (22A100)

`man sw_vers`

SW_VERS(1)                  General Commands Manual                 SW_VERS(1)

NAME
     sw_vers – print macOS system version information

SYNOPSIS
     sw_vers
     sw_vers --productName
     sw_vers --productVersion
     sw_vers --productVersionExtra
     sw_vers --buildVersion

DESCRIPTION
     sw_vers prints macOS version information for the currently running
     operating system on the local machine.

     When executed with no options sw_vers prints a short list of version
     properties:

           % sw_vers
           ProductName:              macOS
           ProductVersion:           13.0
           ProductVersionExtra:      (a)
           BuildVersion:             22A100

     The ProductName property provides the name of the operating system
     release (typically "macOS"). The ProductVersion property defines the
     version of the operating system release (for example, "11.3" or "12.0").
     The ProductVersionExtra property defines the Rapid Security Response
     version, if one is installed on the operating system (for example, "(a)"
     or "(b)"). The BuildVersion property provides the specific revision of
     the operating system as generated by the macOS build system.

OPTIONS
     The output of sw_vers can be refined by the following options. These
     long-form options can also be passed in lowercase for convenience.

     --productName          Print only the value of the ProductName property.

     --productVersion       Print only the value of the ProductVersion
                            property.

     --productVersionExtra  Print only the value of the ProductVersionExtra
                            property.

     --buildVersion         Print only the value of the BuildVersion property.

EXAMPLES
     % sw_vers --productName
     macOS

     % sw_vers --productVersion
     13.0

     % sw_vers --productVersionExtra
     (a)

     % sw_vers --buildVersion
     22A100

COMPATIBILITY
     Previous versions of sw_vers respected the SYSTEM_VERSION_COMPAT
     environment variable to provide compatibility fallback versions for
     scripts which did not support the macOS 11.0+ version transition. This is
     no longer supported, versions returned by sw_vers will always reflect the
     real system version.

     sw_vers is backwards compatible with previous versions which expect
     options passed with a single dash, as in:

     -productName

FILES
     /System/Library/CoreServices/SystemVersion.plist

macOS 15.6                     October 27, 2022                     macOS 15.6

• ついでに クリップボードにもコピーするように変更

.zshrc

alias vers="sw_vers | xargs | \
    awk '{ if(NF==6){ print \$2 \" \" \$4 \" (\" \$6 \")\" }else{ print \$2 \" \" \$4\$6 \" (\" \$8 \")\"} }' | \
    tee `tty` | pbcopy"

便利です