Linux下的查找技巧

Find知识点：

　　　　-mtime　　　　——修改时间

　　　　-ctime　　　　——创建时间

　　　　-atime　　　　——访问时间

mtime 举例说明：

　　-mtime n : n为数字，意思为在n天之前的“一天之内”被更改过内容的文件

　　-mtime +n : 列出在n天之前（不含n天本身）被更改过内容的文件名

　　-mtime -n : 列出在n天之内（含n天本身）被更改过内容的文件名

例如：将系统24小时内更改过内容的档案列出。

find / -mtime 0

1、查找大于100M的文件

$find . -type f -size +1000000k

2、Linux查找快速增长的文件（查找近期变动的大小超过M的文件）

问题描述：发现Linux的/目录空间报警，然后登录到服务器上通过df -h 查看到/空间的可用在不断的减少，肯定是有文件在不断的占用空间。

排查脚本：查询大于1M的当日改变的文件

[oracle@swnode2 app]$ du -sh `find ./ -ctime ` | grep [-]M | sort -n
977M    ./oracle/admin/gnnt/adump
959M    ./grid/diag/tnslsnr/swnode2/asmnet1lsnr_asm/alert
659M    ./grid/crsdata/swnode2/acfs
531M    ./grid/diag/tnslsnr/swnode2/asmnet1lsnr_asm/trace/asmnet1lsnr_asm.log
498M    ./oracle/diag/rdbms/gnnt/gnnt2/trace
297M    ./grid/diag/apx/+apx/+APX2/trace
275M    ./grid/diag/asm/+asm/+ASM2/trace
163M    ./grid/diagsnap/swnode2
162M    ./grid/crsdata/swnode2/cvu/cvutrc
144M    ./oracle/admin/gnnt/adump/6900B0297CC66549E053650DA8C0B038
97M     ./grid/diag/rdbms/_mgmtdb/-MGMTDB/trace
92M     .//grid/crf/db/swnode2/proc
51M     ./grid/diag/crs/swnode2/crs/trace/ocssd_76.trc
36M     ./grid/diag/tnslsnr/swnode2/listener/trace/listener.log
33M     ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_mmon_27452.trc
32M     ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_gen0_27237.trc
32M     ./grid/diag/rdbms/_mgmtdb/-MGMTDB/trace/-MGMTDB_mmon_42907.trc
32M     ./grid/diag/rdbms/_mgmtdb/-MGMTDB/trace/-MGMTDB_gen0_42706.trc
30M     ./grid/diag/tnslsnr/swnode2/listener_scan1/trace/listener_scan1.log
29M     ./grid/diag/asm/+asm/+ASM2/trace/+ASM2_gen0_7361.trc
28M     ./grid/diag/asm/+asm/+ASM2/trace/+ASM2_mmon_7475.trc
28M     ./grid/diag/apx/+apx/+APX2/trace/+APX2_gen0_7836.trc
26M     ./grid/diag/crs/swnode2/crs/trace/osysmond_13.trc
26M     ./grid/crsdata/swnode2/cvu/cvutrc/cvutrace.log.
26M     ./grid/crsdata/swnode2/cvu/cvutrc/cvutrace.log.
26M     ./grid/crsdata/swnode2/cvu/cvutrc/cvutrace.log.
24M     ./grid/diag/crs/swnode2/crs/trace/crsd_oraagent_grid.trc
23M     ./grid/crsdata/swnode2/cvu/cvutrc/cvuhelper.log.
22M     ./grid/diag/crs/swnode2/crs/trace/ohasd_oraagent_grid.trc
22M     ./grid/diag/crs/swnode2/crs/trace/gpnpd.trc
22M     ./grid/diag/crs/swnode2/crs/trace/gipcd.trc
20M     ./grid/crsdata/swnode2/cvu/cvulog
19M     ./grid/diag/clients/user_grid/host_4152456498_107/trace
18M     ./grid/diag/crs/swnode2/crs/trace/ohasd_orarootagent_root.trc
16M     ./grid/diag/crs/swnode2/crs/trace/crsd_scriptagent_grid.trc
16M     ./grid/crsdata/swnode2/acfs/acfs.log.
15M     ./grid/diag/tnslsnr/swnode2/mgmtlsnr/trace/mgmtlsnr.log
15M     ./grid/diag/crs/swnode2/crs/trace/octssd.trc
15M     ./grid/crsdata/swnode2/cvu/cvutrc/cvutrace.log.
14M     ./oracle/diag/rdbms/gnnt/gnnt2/incident
12M     ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_lmhb_27353.trc
12M     ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_dia0_27310_base_1.trc
12M     ./grid/diag/crs/swnode2/crs/trace/ologgerd.trc
12M     ./grid/crsdata/swnode2/acfs/advm.bin.
11M     ./grid/diag/tnslsnr/swnode2/asmnet1lsnr_asm/alert/log_95.xml
11M     ./grid/diag/crs/swnode2/crs/trace/ohasd.trc
11M     ./grid/diag/asm/+asm/+ASM2/trace/+ASM2_lmhb_7425.trc
11M     .//grid/crf/db/swnode2/proc/procdump.l01
10M     .//grid/crf/db/swnode2/proc/procdump.l08
10M     .//grid/crf/db/swnode2/proc/procdump.l07
10M     .//grid/crf/db/swnode2/proc/procdump.l04
10M     .//grid/crf/db/swnode2/proc/procdump.l03
10M     .//grid/crf/db/swnode2/proc/procdump.l02
/grid/crf/db/swnode2/proc/procdump.l09
/grid/crf/db/swnode2/proc/procdump.l06
/grid/crf/db/swnode2/proc/procdump.l05
/grid/rdbms/audit/+ASM2_ora_51680_20180705000128420057143795.aud
9.7M    ./oracle/diag/rdbms/gnnt/gnnt2/incident/incdir_2520377
9.7M    ./grid/diag/rdbms/_mgmtdb/-MGMTDB/alert/log.xml
9.6M    ./grid/diag/crs/swnode2/crs/trace/ocssd.trc
9.4M    ./grid/diag/tnslsnr/swnode2/listener_scan1/alert/log.xml
9.4M    ./grid/diag/crs/swnode2/crs/trace/osysmond.trc
8.6M    ./oracle/diag/rdbms/gnnt/gnnt2/incident/incdir_2520377/gnnt2_mmon_27452_i2520377.trc
8.3M    ./grid/diag/tnslsnr/swnode2/listener/alert/log.xml
8.1M    ./grid/diagsnap/swnode2/diagsnap_swnode2.log
7.9M    ./grid/crsdata/swnode2/qos/logs
7.5M    ./grid/diag/crs/swnode2/crs/trace/ocssd_76.trm
/grid/rdbms/audit/+ASM2_ora_51680_20180705152908123581143795.aud
6.9M    ./oracle/admin/gnnt/adump/gnnt2_ora_19062_20180705235537335003143795.aud
/grid/srvm/admin
6.6M    ./grid/diag/tnslsnr/swnode2/asmnet1lsnr_asm/alert/log.xml
5.7M    ./grid/diag/crs/swnode2/crs/trace/ohasd_cssdmonitor_root.trc
5.6M    ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_mmon_27452.trm
5.6M    ./grid/diag/crs/swnode2/crs/trace/crsd.trc
5.5M    ./grid/diag/crs/swnode2/crs/trace/ohasd_oraagent_grid.trm
5.1M    ./grid/diag/rdbms/_mgmtdb/-MGMTDB/incident
5.0M    ./grid/diag/rdbms/_mgmtdb/-MGMTDB/incident/incdir_48265
4.8M    ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_gen0_27237.trm
/grid/log/swnode2/client
4.6M    ./grid/diag/rdbms/_mgmtdb/-MGMTDB/incident/incdir_48265/-MGMTDB_mmon_42907_i48265.trc
4.6M    ./grid/diag/crs/swnode2/crs/trace/crsd_orarootagent_root.trc
4.5M    ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_dia0_27310_base_1.trm
4.4M    ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_dbrm_27277.trc
4.4M    ./grid/diag/rdbms/_mgmtdb/-MGMTDB/trace/-MGMTDB_dbrm_42768.trc
4.4M    ./grid/diag/asm/+asm/+ASM2/trace/+ASM2_gen0_7361.trm
4.3M    ./grid/diag/rdbms/_mgmtdb/-MGMTDB/trace/-MGMTDB_mmon_42907.trm
4.3M    ./grid/diag/rdbms/_mgmtdb/-MGMTDB/trace/-MGMTDB_gen0_42706.trm
4.3M    ./grid/diag/asm/+asm/+ASM2/trace/+ASM2_mmon_7475.trm
4.3M    ./grid/diag/apx/+apx/+APX2/trace/+APX2_gen0_7836.trm
4.2M    ./grid/diag/crs/swnode2/crs/trace/ohasd_cssdagent_root.trc
3.9M    ./grid/diag/crs/swnode2/crs/trace/crsd_oraagent_grid.trm
3.8M    ./oracle/diag/rdbms/gnnt/gnnt2/trace/alert_gnnt2.log
/db_1/cfgtoollogs/opatch
3.6M    ./grid/diag/rdbms/_mgmtdb/-MGMTDB/trace/alert_-MGMTDB.log
3.6M    ./grid/diag/crs/swnode2/crs/trace/crsd_jagent_grid.trc
3.5M    ./grid/diag/asm/+asm/+ASM2/alert/log.xml
3.4M    ./grid/diag/crs/swnode2/crs/trace/crsd_scriptagent_grid.trm
/grid/cfgtoollogs/opatch
3.2M    ./oracle/diag/rdbms/gnnt/gnnt2/alert/log.xml
3.2M    ./grid/diag/crs/swnode2/crs/trace/gipcd.trm
3.1M    ./oracle/admin/gnnt/adump/gnnt2_ora_15879_20180706030706129797143795.aud
3.1M    ./grid/diag/crs/swnode2/crs/trace/ohasd_orarootagent_root.trm
2.9M    ./oracle/admin/gnnt/adump/gnnt2_j002_24048_20180705220024598306143795.aud
2.8M    ./grid/diag/crs/swnode2/crs/trace/octssd.trm
2.8M    ./grid/diag/crs/swnode2/crs/trace/crsd_oraagent_oracle.trc
2.7M    ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_lms0_27326.trc
2.7M    ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_dia0_27310_lws_1.trc
2.6M    ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_lms1_27328.trc

/grid/crf/db/swnode2/proc/procdump.log
2.4M    ./grid/diag/crs/swnode2/crs/trace/gpnpd.trm
2.4M    ./grid/crsdata/swnode2/evm
2.1M    ./oracle/diag/rdbms/gnnt/gnnt2/metadata/DFW_PURGE_ITEM.ams
2.1M    ./oracle/admin/gnnt/adump/gnnt2_ora_34857_20180705221902514272143795.aud
2.1M    ./grid/diag/crs/swnode2/crs/trace/ologgerd.trm
2.1M    ./grid/diag/crs/swnode2/crs/trace/ohasd.trm
2.1M    ./grid/diag/crs/swnode2/crs/metadata/DFW_PURGE_ITEM.ams
2.1M    ./grid/diag/asmtool/user_grid/host_4152456498_107/alert/log.xml
2.1M    ./grid/crsdata/@global/cvu/baseline/cvures

/grid/rdbms/audit/+ASM2_ora_45011_20180630235220082856143795.aud
1.8M    ./grid/diag/crs/swnode2/crs/trace/evmd.trc
/grid/rdbms/audit/+ASM2_ora_13846_20180706030604564198143795.aud
/db_1/cfgtoollogs/opatch/lsinv
1.7M    ./oracle/admin/gnnt/adump/gnnt2_ora_19670_20180705235607678244143795.aud
/grid/cfgtoollogs/opatch/lsinv
1.5M    ./grid/diag/asm/user_grid/host_4152456498_107/alert/log.xml
/grid/rdbms/log
/grid/cdata/swnode2.olr
1.4M    ./grid/diag/crs/swnode2/crs/trace/ocssd.trm
1.3M    ./grid/diag/rdbms/_mgmtdb/-MGMTDB/metadata/DFW_PURGE_ITEM.ams
1.2M    ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_mmon_9212.trc
1.2M    ./grid/diag/crs/swnode2/crs/trace/ohasd_cssdmonitor_root.trm
1.1M    ./oracle/diag/rdbms/gnnt/gnnt2/trace/gnnt2_gen0_9004.trc
1.1M    ./oracle/diag/rdbms/gnnt/gnnt2/incident/incdir_2520377/gnnt2_mmon_27452_i2520377.trm
1.1M    ./grid/diag/tnslsnr/swnode2/mgmtlsnr/alert/log.xml
1.1M    ./grid/diag/crs/swnode2/crs/trace/crsd.trm
1.1M    ./grid/diag/asm/+asm/+ASM2/trace/+ASM2_lms0_7415.trc
/grid/rdbms/audit/+ASM2_ora_62301_20180705155542656414143795.aud
/grid/rdbms/audit/+ASM2_ora_40722_20180705195554780511143795.aud
/grid/rdbms/audit/+ASM2_ora_19404_20180705235600641745143795.aud
/grid/rdbms/audit/+ASM2_ora_17214_20180705115536941463143795.aud
1.0M    ./grid/diag/asm/+asm/+ASM2/trace/+ASM2_gen0_7782.trc

$ du -sh `find ./ -ctime 0` | grep [0-9]M | sort -n

3、linux统计目录大小并排序查看目录下所有一级子目录文件夹大小

格式：du -h --max-depth=1 |grep []

$du -h --max-depth= |grep [TG] |sort   #查找上G和T的目录并排序

解释：

du -sh #统计当前目录的大小，以直观方式展现

du -h --max-depth=1 |grep 'G' |sort #查看上G目录并排序

du -sh --max-depth=1 #查看当前目录下所有一级子目录文件夹大小

du -h --max-depth=1 |sort #查看当前目录下所有一级子目录文件夹大小并排序

du -h --max-depth=1 |grep [TG] |sort -nr #倒序排

4、搜索指定日期范围的文件，例如搜索/test下2017-06-03到2017-06-06之间修改过的文件

$find /test -type f -newermt -- -a ！ -newermt --

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