我需要帮助从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
id 只需要上面数字的最后 16 位，所以它看起来像这样:
6420029454020029
6787889786973463
7222591368318424
1147142436072964
是的，问题是，我如何获得最后 16 位数字？
q5data 包含这个:
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。紧接着我们看到:82575525572371251(17 位数字) 我喜欢它输出最后 16 位数字 ( 2575525572371251 )
谢谢你:)
最佳答案
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 位数字直到单词边界。
关于unix - 使用 grep 命令从输出中获取最后 x 位数字，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/34184396/