printf / regex

domi55 · #1 (**permalink**) 12-31-2008

Morning folks,

I need help with the following issue:

Let's say we I have the following output:

Code:

First Name:  Test
Last Name:   Test2
Number:   T1234
Number2:  T1234

Needed Output:

Code:

T1234

Now I want to grep/nawk/printf/sed out the Number:

- I like to search for T[0-9][0-9][0-9][0-9]
- Aditionally the script should just print out one T-Number (needed Output)

Can you help me to iplement this requirements into a one liner?

Cheers,

Domi

pludi · #2 (**permalink**) 12-31-2008

Code:

awk '/T[0-9]{4}/{print $2}' file | uniq

On Linux you have to add the '--posix' parameter for the regex to work correctly

Christoph Spohr · #3 (**permalink**) 12-31-2008

Hi,

code:

Code:

grep -o "T[0-9]\{4\}" file | uniq

output:

Code:

T1234

HTH Chris

domi55 · #4 (**permalink**) 12-31-2008

Thank you guys.

@pludi

Your script does not work:

Code:

[user@host] ~
 # more file
iFirst Name:  Test
Last Name:   Test2
Number:   T1234
Number2:  T1234
[user@host] ~
 # awk '/T[0-9]{4}/{print $2}' file | uniq
[user@host] ~

@Christop Spoher
i can not use grep -o (I'm running Solaris 10 so I'm using -e instead)

Code:

[user@host] ~
 # /usr/xpg4/bin/grep -e "T[0-9]\{4\}" file | uniq
Number:   T1234
Number2:  T1234
[user@host] ~

@pludi, Christoph Spohr

What is when i have the following output:

Code:

First Name: Test
Last Name: Test2
Number: asd asdsf  234 T1234 ...dasda
Number 2: asd asdsf  234 T1234 ...dasda

So basically I'm looking for a solution without using "print $2"

Christoph Spohr · #5 (**permalink**) 12-31-2008

Code:

sed -n '/T[0-9]\{4\}/{s/.*\(T[0-9]\{4\}\).*/\1/g;p}' file

Input:

Code:

First Name: Test
Last Name: Test2
Number: asd asdsf  234 T1234 ...dasda
Number 2: asd asdsf  234 T1234 ...dasda

Output:

Code:

T1234

If your sed doesn't support the ";"shortcut, you have to use a sedfile.

domi55 · #6 (**permalink**) 12-31-2008

Hmm...

Code:

[user@host] /
 # more file
First Name: Test
Last Name: Test2
Number: asd asdsf  234 T1234 ...dasda
Number 2: asd asdsf  234 T1234 ...dasda
[user@host] /
 # sed -n '/T[0-9]\{4\}/{s/.*\(T[0-9]\{4\}\).*/\1/g;p}' file
sed: command garbled: /T[0-9]\{4\}/{s/.*\(T[0-9]\{4\}\).*/\1/g;p}
[user@host] /
 #

Do I really have to use a 'sedfile' in this case? Is there no other way?

Thx very much for your help.

ArthurWaik · #7 (**permalink**) 01-02-2009

Quote:

Just "RLENGTH +3" is not an Option.

Why?

It works for me:

Code:

$ cat zzz.txt
First Name: Test
Last Name: Test2
Number: asd asdsf  234T1234 A1...dasda
Number 2: asd asdsf  234 T1234 A1...dasda

awk '{s=match($0, "T[0-9][0-9][0-9][0-9]");if(s){print substr($0,RSTART,RLENGTH + 3 )}}' zzz.txt
T1234 A1
T1234 A1

When you say:

Quote:

It is everytime the exactly the string "A1"

do you mean it is alway the string "A1" regardless of what is in the file? If so why not just hardcode that in the print?

Code:

 awk '{s=match($0, "T[0-9][0-9][0-9][0-9]");if(s){print substr($0,RSTART,RLENGTH),"A1"}}' zzz.txt
T1234 A1
T1234 A1

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