How can select apecific rows from text files
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Hi , i have theses data sets as text file,
i need extract and save specific rows only ( i need the rows that contains the words : ReadReq or WriteReq , ( otherwise negleget all other rwos !)
example: i need extrect the rows contain on the words inside its ( readReq or Writereq) such as :
3411151194500: system.cpu04.icache: ReadReq [380730:380733] IF hit state: 7 (E) valid: 1 writable: 1 readable: 1 dirty: 0 tag: 1c0
3411151194500: system.cpu04.dcache: WriteReq [a22a48:a22a4f] miss
from the original text file :
3411151194500: system.cpu04.icache: ReadReq [380730:380733] IF hit state: 7 (E) valid: 1 writable: 1 readable: 1 dirty: 0 tag: 1c0
3411151194500: system.cpu04.dcache: createMissPacket: created ReadExReq [a22a40:a22a7f] from WriteReq [a22a48:a22a4f]
3411151194500: system.cpu04.dcache: WriteReq [a22a48:a22a4f] miss
3411151194500: system.cpu04.dcache: recvAtomic: Sending an atomic ReadExReq [a22a40:a22a7f]
3411151194500: system.cpu04.dcache: Block addr 0xa22a40 (ns) moving from state 0 to state: 7 (E) valid: 1 writable: 1 readable: 1 dirty: 0 tag: 511
I appriciate for any hepl please
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Guillaume
2019-10-23
I'd recommend you go over the questions asked by this guy because I've answered several question of his that dealt with parsing log files very similar to yours.
采纳的回答
Joe Vinciguerra
2019-10-23
% Read all your data into a cell array. 'Delimiter','' means to import
% everthing into one column, which I believe is better for your
% application.
data = readcell('data.txt','Delimiter','');
% Create a vector 'TF' that identifies logically which rows in 'data'
% contain the strings you identified. "|" represents the 'or' function.
TF = contains(data,('WriteReq')) | contains(data,('ReadReq'));
% for every element of 'data' where TF is zero (false, i.e. doesn't contain
% either string) set that value to '[]' to delete it from the array.
data(TF == 0) = [];
5 个评论
Joe Vinciguerra
2019-10-24
Glad you got it working. If you're satisfied with this answer, please click the "accept" button.
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