Extract text between 2 markers

Question

input:

random adsf 845 asdsf.$Ecdda-string0.rand me39 84abd    
dee rand a[s% 845 a1sEdsf.$cdNda-string1.rand me39 84abd

output - keep everything between da- and .

string0    
string1

what I have tried so far:

sed -e 's/.*da-\(.*\)./\1/' file 
grep -o -P '(?<=da-).*(?=.)' file
grep -o -P '(?<=da-).*(?=\.)' file

`grep -o -P '(?<=da-).*(?=\.)' file` works for me on GNU grep with PCRE available... in what way it fails for you? — Sundeep, Mar 20 '18 at 14:20

score 0 · Accepted Answer · answered Mar 20 '18 at 14:30

0

Your sed was close. Needed to be \..* at the end of your matching

$ cat test.txt
random adsf 845 asdsf.$Ecdda-string0.rand me39 84abd
dee rand a[s% 845 a1sEdsf.$cdNda-string1.rand me39 84abd

$ sed 's#.*da-\([^.]*\)\..*#\1#g' test.txt
string0
string1

answered Mar 20 '18 at 14:30

zzevannn

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score 0 · Answer 2 · answered Mar 20 '18 at 14:40

0

with grep look behind..

$ grep -oP '(?<=da-)[^.]+' file

string0
string1

answered Mar 20 '18 at 14:40

karakfa

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it works fine; thanx a lot but zzevannn was faster; sorry. – achille Mar 20 '18 at 14:52

Claes Wikner · Answer 3 · 2018-03-20T19:12:09.507

0

$ awk -F'[-.]' '{print $3}' file

string0
string1

Useing provided FS print third field.

edited Mar 20 '18 at 19:12

answered Mar 20 '18 at 17:41

Claes Wikner

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You should provide some explanation – laughedelic Mar 20 '18 at 18:35

Extract text between 2 markers

3 Answers3