khoty
asked on
grep in shell
I have a file in the following format:
Name
DOB
Address
sometimes the DOB is missing so I may only have
Name
Address
eg .
Name Terry Likos
DOB 7/2/1971
Address 12 Grose street etc
Name John Doe
Address 134 Grose street etc
so if I want to do a grep for 'Grose' then I want to get the
name and DOB(if there is any) and that person's address.
Is there a way to do this in a shell script? (my name and address file is almost 12MB so I want to do it fast)
Name
DOB
Address
sometimes the DOB is missing so I may only have
Name
Address
eg .
Name Terry Likos
DOB 7/2/1971
Address 12 Grose street etc
Name John Doe
Address 134 Grose street etc
so if I want to do a grep for 'Grose' then I want to get the
name and DOB(if there is any) and that person's address.
Is there a way to do this in a shell script? (my name and address file is almost 12MB so I want to do it fast)
Not with grep! Maybe with awk. Take a look at "man awk" to see if it will do what you want.
awk '/^Name/{n=$0}/DOB{d=$0}/A
I don't think that awk script is quite right.
Consider the a file like:
Name Terry Likos
DOB 7/2/1971
Address 12 Rose street etc
Name John Doe
Address 134 Grose street etc
Also, consider what would happen if you searched for /John/
Consider the a file like:
Name Terry Likos
DOB 7/2/1971
Address 12 Rose street etc
Name John Doe
Address 134 Grose street etc
Also, consider what would happen if you searched for /John/
ASKER
awk '/^Name/{n=$0}/DOB{d=$0}/A
awk: syntax error near line 1
awk: bailing out near line 1
There is ALSO one more little thing...
if I type 'Terry' and 'John' then I want to see if they live in the same street, as in the above example 'Grose street'.
So basically we want find all those people that live in a particular street either searching by street name , or searching by names. However the format of the result(s) returned will be the same ie.name and DOB(if there is any) and that person's address.
awk: syntax error near line 1
awk: bailing out near line 1
There is ALSO one more little thing...
if I type 'Terry' and 'John' then I want to see if they live in the same street, as in the above example 'Grose street'.
So basically we want find all those people that live in a particular street either searching by street name , or searching by names. However the format of the result(s) returned will be the same ie.name and DOB(if there is any) and that person's address.
I think ahoffmann meant to type
awk '/^Name/{n=$0}/DOB/{d=$0}/
Although that still has the minor problem mentioned earlier.
awk 'BEGIN{ORS=";"}/^Name/{pri
awk '/^Name/{n=$0}/DOB/{d=$0}/
Although that still has the minor problem mentioned earlier.
awk 'BEGIN{ORS=";"}/^Name/{pri
ASKER
how can I optimise awk 'BEGIN{ORS=";"}/^Name/{pri
this one is good...but runs very slow when I test it with a 12MB data file.
this one is good...but runs very slow when I test it with a 12MB data file.
ASKER
Adjusted points to 400
ASKER
Adjusted points to 800
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if I type 'Terry' and 'John' then I want to see if they live in the same street, as in the above example 'Grose street'.
So basically we want find all those people that live in a particular street either searching by street name , or searching by names. However the format of the result(s) returned will be the same ie.name and DOB(if there is any) and that person's address.