如果删除当前文件夹下除了每个文件的最新备份外的其他文件

vipty

请教下，我一个文件夹下有这些文件的不同日期的备份，如何每个文件保留一个最新的，其他的全部删掉p2p-system.jar.2018-12-10210119
p2p-channel.jar.2018-11-20220019
p2p-loan.jar.2018-11-02180824
p2p-pay.jar.2018-11-09184630
p2p-activity.jar.2018-11-06173812
p2p-after-loan.jar.2018-11-08205025
p2p-loan.jar.2018-11-08205017
p2p-risk.jar.2018-11-08205021
p2p-activity.jar.2018-11-20220027
p2p-user.jar.2018-11-09184623
p2p-loan.jar.2018-11-09184626
p2p-risk.jar.2018-11-15210822
p2p-after-loan.jar.2018-11-15210831
p2p-user.jar.2018-11-15210814
p2p-loan.jar.2018-11-15210818
p2p-pay.jar.2018-11-15210826
p2p-user.jar.2018-11-20220000
p2p-loan.jar.2018-11-16110954
p2p-risk.jar.2018-11-16172649
p2p-pay.jar.2018-11-20220013
p2p-after-loan.jar.2018-11-29202319
p2p-loan.jar.2018-11-20220004
p2p-risk.jar.2018-11-20220008
p2p-user.jar.2018-11-22202449
p2p-loan.jar.2018-11-21191311
p2p-risk.jar.2018-11-22202454
p2p-pay.jar.2018-11-29202307
p2p-channel.jar.2018-11-29202312
p2p-activity.jar.2018-11-22202459
p2p-loan.jar.2018-11-22202451
p2p-user.jar.2018-11-23143100
p2p-loan.jar.2018-11-29202259
p2p-risk.jar.2018-11-29202302
p2p-activity.jar.2018-12-07144600
p2p-user.jar.2018-11-29202256
p2p-user.jar.2018-12-05143349
p2p-loan.jar.2018-12-03151525
p2p-risk.jar.2018-12-07144555
p2p-loan.jar.2018-12-05143351
p2p-user.jar.2018-12-07144550
p2p-loan.jar.2018-12-07144552
p2p-user.jar.2018-12-10210113
p2p-loan.jar.2018-12-07183357
p2p-activity.jar.2018-12-10210124
p2p-loan.jar.2018-12-10210115
p2p-loan.jar.2018-12-11145519
p2p-loan.jar.2018-12-12181133

wh7211

回复 1# vipty


<<<awk4.0+

1. ls|awk -F"." '{a[$1"."$2][$3]}END{PROCINFO["sorted_in"]="@ind_num_desc";for(i in a){for(j in a[i]){++k[i];if(k[i]>1){system("rm "i"."j"")}}}}'

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vipty

回复 2# wh7211

awk版本不到4.0不行的是吧？我的版本是
GNU Awk 3.1.7

chengchow

ls -lrt | tail -1
这个就是最新的文件，其他删除

wh7211

回复 3# vipty


<<<awk3.0

1. ls|awk -F"." '{a[$1"."$2]=a[$1"."$2]?a[$1"."$2]","$3:$3}END{for(i in a){split(a[i],b,",");d=asort(b,c);{for(j in c){if(j+0<d){system("rm "i"."c[j]"")}}}}}'

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