我想过滤掉具有相同编号的行->相同编号
从这段文字
[325194/777232]/var/cache/apt/srcpkgcache.bin: 100% extents: 5 -> 1 [ OK ]
[325195/777232]/var/cache/apt/pkgcache.bin: 100% extents: 4 -> 1 [ OK ]
[325255/777232]/var/cache/man/de/index.db: 100% extents: 2 -> 2 [ OK ]
[325521/777232]/var/log/syslog: 100% extents: 7 -> 1 [ OK ]
[325525/777232]/var/log/lastlog: 100% extents: 2 -> 2 [ OK ]
[325531/777232]/var/log/syslog.1: 100% extents: 5 -> 1 [ OK ]
[325572/777232]/var/log/kern.log: 100% extents: 6 -> 1 [ OK ]
[325589/777232]/var/log/auth.log: 100% extents: 3 -> 1 [ OK ]
[325621/777232]/var/log/faillog: 100% extents: …Run Code Online (Sandbox Code Playgroud)