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ある文字を別の文字に置き換えますが、他の文字は含まれていません

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ある文字を別の文字に置き換えますが、他の文字は含まれていません

次の出力があり、IPアドレスの後の "/"で始まるすべてのエントリをvlanという単語の最初のインスタンスまで（含まれていない）置き換えます。これはどのように達成できますか？

sy3-fa-c3r801-lb-3b.audc1.xxxxx.com address 192.168.1.2/30 allow-service { default  traffic-group Common/traffic-group-local-only vlan Common/vlan-HA }
sy3-ibr-lb-1a.audc1.xxxxx.com address 160.34.63.68/29 floating enabled traffic-group Common/traffic-group-1 unit 1 vlan Common/vlan13 
sy3-ibr-lb-1a.audc1.xxxxx.com address 160.34.63.193/26 floating enabled traffic-group Common/traffic-group-1 unit 1 vlan Common/vlan23 
sy3-ibr-lb-1a.audc1.xxxxx.com address 192.168.1.1/30 allow-service { default  traffic-group Common/traffic-group-local-only vlan Common/vlan-HA }
sy3-ibr-lb-1a.audc1.xxxxx.com address 160.34.63.194/26 traffic-group Common/traffic-group-local-only vlan Common/vlan23 
sy3-ibr-lb-1a.audc1.xxxxx.com address 160.34.63.69/29 traffic-group Common/traffic-group-local-only vlan Common/vlan13 
sy3-ibr-lb-1b.audc1.xxxxx.com address 160.34.63.68/29 floating enabled traffic-group Common/traffic-group-1 unit 1 vlan Common/vlan13 
sy3-ibr-lb-1b.audc1.xxxxx.com address 160.34.63.193/26 floating enabled traffic-group Common/traffic-group-1 unit 1 vlan Common/vlan23 
sy3-ibr-lb-1b.audc1.xxxxx.com address 192.168.1.2/30 allow-service { default  traffic-group Common/traffic-group-local-only vlan Common/vlan-HA }
sy3-ibr-lb-1b.audc1.xxxxx.com address 160.34.63.195/26 traffic-group Common/traffic-group-local-only vlan Common/vlan23 
sy3-ibr-lb-1b.audc1.xxxxx.com address 160.34.63.70/29 traffic-group Common/traffic-group-local-only vlan Common/vlan13

ベストアンサー1

sed 's/\(.*[0-9]\)\/.* \(vlan.*\)/\1REPLACEMENT\2/' file

前の数字で最初の出現を照合し、/空白文字で最初の出現を照合します。vlan

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