Question

我需要帮助从我使用此命令获得的输出中获取最后16位数字;

cat q5data.txt | grep -o '[0-9]*[0-9]\{16\}'

我得到的输出是：

6420029454020029
26787889786973463
92272417810036027222591368318424
1147142436072964

并且id只想要上面数字的最后16位数字，所以它看起来像这样：

6420029454020029
6787889786973463
7222591368318424
1147142436072964

所以是的，问题是，我怎样才能获得最后16位数字？

q5data包含：

0111102.82575525572371251FriThuSat32169716436971243.1415  foo100001$$$3.14153
foo`3.1415Green100010blah2.8
2.85720948213811501Purple`WedTueBLACK1869228491762178BLACK$$3.14100001Feb010000
taoblahfoopiGreen010111
VOIDchiOrangeSatNILLVOIDBLACK$$$Sat3.14155378825854705118Mar$WHITEAug`Tue
4421929582063064
2.8$$$$BLACKSun$"blah$ThublahJun2057411253659033Orange$$Sun$$fubar'
BLACKSun8061215743158569Jul'010101`2.8MayFri$$'blah
100001$3.141533.14153taoBLACKWHITE3.141532.8'foo"chi`BLACK$$$3300209361826966
5976364681345632YellowFri"JanWHITEWedWHITE3652470302503667WHITE
1237496282374608WHITEpiNILLVOID110111WHITEApr'$$$2.83536505910579946111010
54891762211716313.14$$RedWedtaoMonFri110010$$3068508931421361$PurpleNILLWHITE9242959892278294Sep
000110BlueOct2582940799974379
phifoo$
Purple3.1415Green '
3.14BLACKTuepiYellowWHITEchi35798399298233973.14153.1415WHITEpitao$SunBlue010110
NULLBLACKTue1650665049652872`2.8$'$$$NULL3.14SatGreen$$3.141533.14153GreenVOIDJul"
chichifubarWedpiBLACK3.14153BLACKpiWHITEThu$ BLACK
blah2.8fubar4411479881441554$$`BLACKWHITE1101113.14SepWHITEJanThuGreen
$$WHITE'"3675572769992033fooBlueNULL100000'
BLACK 3.14WHITEDecfubarOrangeMay NILLWHITE2570850288634750 101011$$$Mon
Tue" 3.143.14phiSat7665425103246257MayphiTue'0010110101112.8BLACK$fubar"
0358649831711525100010'FriJunThu"3.14SunGreenfubarMonWHITEVOID$$$VOID1877369637528056Jan$010010
GreenTue000111ThuBLACKApr011010
Jun6244216458497289`PurpleAug$$$2685357800265115''2.8taopi101100$$chiFeb
9471418620899225VOID8617331495319240NULLWHITEblah5461478451014026
6352741666667105
WHITEfooOct011010pi$$$110100BLACKBLACKTuePurpleWHITE9093492271343727SepNovchi
Orange3.144596443153024361`"'$$78253311502390510101103.14153Friphi $Mon 
1385825179552755YellowBLACK001011Sep$$RedFebfubarMon010010000010fubar"Jul0110117544560082562350
3.141653642540032022chi'Orange
1253542283769081tao4876457038962098MonSunMayWHITEYellow3.14153$Orange000101blah
RedSatNILLphiVOIDWedfubarGreen chi$$piphiJul$$$111001`9540185369262601NILLVOID
7006440921851679Wed3.14152.8chiGreenThu$$Tuefoofooblahpi$$$taopi$ May 'Feb
MayNILLblah8007182476768737JantaophiThutao$'Jul  AprNILLBLACK'3.14153Feb3.1415
57067714600406493.141537231229468300261Mon$`SunNILL `NULL3.14153foochi1000109494160741986074
6577869219715310JulJanBLACKfubarBLACK2.8phiGreen0091496849086433
SunBlue2355648762601053 3.1415NULL$$$BLACK100011 ThuDecJun2.83.1415phiFeb"
9173525733960126BLACK  3.14153`110001PurpleRedFebfubarVOIDfoo$$$blah9330024102534139 
Jun$$VOIDVOID4099554992034342Julpi9976331355660412taoWHITEGreen$$100010NILLVOID
3.14153phiSatphi43658305924319679197159994746838phipiApr

3.1415RedblahMayfooJul100011NovtaoMon3.141533.14JanGreen$$ OctNILLfooWHITE3.1415
96027197435535111011013.14VOID3583462878046156NULL3.1415blahOrangefoo 100101taofoo3.14153"3.1415
$$Red3.14Marblah'
3797758515388131tao $$$101010NULL2268984774582096BlueBlue3.14153Oct`
74321533961822933.14153994759453326425$$Jul001111PurpleGreenTueNovJan2742714540787707Blue$$$
0010003.14blah3.14ThuWHITE$$$$blah
3997313793176662 3.141463510697622121Yellow 3.1415'Jul`3.14153NILL2.8Thuphi
3134920264311067fooNov`NULL1111119335359393623483Tue$$$GreenVOIDtaoRedTueAug$$3.141532.8Sat'
3.14153Oct100010FebJan$$3.1415pi$$'chiRed$$$NILL8614261680268364

fubarBLACKpi110001110101pichi0126011887834143GreenNILLYellow NILLfoo101000 $$$
RedTueNULLThu2.814091424413091162.8 WHITE$WHITE60620358244865230211111773156587'pi 
Yellow3.1415$$$$$
"Aug3.1415VOIDBLACK0810996065354809$$$NULLfoo$$Orange6850772642048628WedBLACK
BLACKBluepi 70173555329860651869981769139132phi$$$$$$3.14Feb2.86083883638401362
6420029454020029WHITE26787889786973463.14 3.14 Mon`92272417810036027222591368318424$$$tao
fooTue"1147142436072964AprPurpleSep

好的，在q5data的开头，我们看到01111102.在此之后我们看到：82575525572371251（17位数）我喜欢它输出最后16位数字（2575525572371251）

谢谢：）

Answer 1

要匹配模式的结尾，请使用\b

grep -o '[0-9]\{16\}\b' q5data.txt

所以这将匹配16位数到字边界。

Answer 2

如果要捕获以非数字字符结尾的字符串中的数字，则需要使用负前瞻（使用-P选项，在标准grep中不可用）

$ grep -Po '[0-9]{16}(?![0-9])'

e.g。

$ echo "12345678901234567890aaa" | grep -Po '[0-9]{16}(?![0-9])'
5678901234567890

Answer 3

如果您想要每次运行16位或更多位数的最后16位数字，那么您可以通过两次grep过滤：

grep -Eo '[0-9]{16,}' <q5data.txt | grep -Eo '.{16}$'

第一个选择所有16位或更多位数的运行，第二个选择每次运行的最后16个字符。

在输入文件的第一行进行测试得出：

$ grep -Eo '[0-9]{16,}' <<<'0111102.82575525572371251FriThuSat32169716436971243.1415  foo100001$$$3.14153' | grep -Eo '.{16}$'
2575525572371251
2169716436971243

Answer 4

`Errore sul database di WordPress: [Can't create table 'fdl_users' (errno: 13)] CREATE TABLE fdl_users ( ID bigint(20) unsigned NOT NULL auto_increment, user_login varchar(60) NOT NULL default '', user_pass varchar(64) NOT NULL default '', user_nicename varchar(50) NOT NULL default '', user_email varchar(100) NOT NULL default '', user_url varchar(100) NOT NULL default '', user_registered datetime NOT NULL default '0000-00-00 00:00:00', user_activation_key varchar(60) NOT NULL default '', user_status int(11) NOT NULL default '0', display_name varchar(250) NOT NULL default '', PRIMARY KEY (ID), KEY user_login_key (user_login), KEY user_nicename (user_nicename) ) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci Errore sul database di WordPress: [Can't create table 'fdl_usermeta' (errno: 13)] CREATE TABLE fdl_usermeta ( umeta_id bigint(20) unsigned NOT NULL auto_increment, user_id bigint(20) unsigned NOT NULL default '0', meta_key varchar(255) default NULL, meta_value longtext, PRIMARY KEY (umeta_id), KEY user_id (user_id), KEY meta_key (meta_key(191)) ) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci`

使用grep命令从输出中获取最后的x位数

4 个答案: