awk for presence of characters in a field


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting awk for presence of characters in a field
# 1  
Old 10-02-2009
awk for presence of characters in a field

I have a text file like:

"10","server","","11111",JLB,

I need a way to say if the 3rd field has data in it, move the contents of the entire line to a new file.

Any ideas?
Thanks,
# 2  
Old 10-02-2009
Hi.

Code:
awk -F, '$3 ~ /^"..*"/ { print > FILENAME "_" C++ }' file1

# 3  
Old 10-02-2009
when I run this, I get no output - on the screen or in a file.
# 4  
Old 10-02-2009
Code:
awk -F, 'length($3)>2'  oldfile > newfile

On Solaris try nawk, not awk.
# 5  
Old 10-02-2009
Based on your input, I created a file (file1):

Code:
"10","server","","11111",JLB,
"10","server","A","11111",JLB,
"10","server","B","11111",JLB,

After the script runs, I have file1_0 and file1_1 with:
Code:
"10","server","B","11111",JLB,

Code:
"10","server","B","11111",JLB,

respectively.

Seeing Jim's "> 2" makes me think "keep it simple"! (and Solaris? was my next question)

Last edited by Scott; 10-02-2009 at 06:40 PM..
# 6  
Old 10-02-2009
Thanks, Jim. That worked great. And yes, this is Solaris.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Problem with getting awk to multiply a field by a value set based on condition of another field

Hi, So awk is driving me crazy on this one. I have searched everywhere and read man, docs and every related post Google can find and still no luck. The actual files I need to run this on are sensitive in nature, but it is the same thing as if I needed to calculate weighted grades for multiple... (15 Replies)
Discussion started by: cotilloe
15 Replies

2. Shell Programming and Scripting

Using awk to add length of matching characters between field in file

The awk below produces the current output, which will add +1 to $3. However, I am trying to add the length of the matching characters between $5 and $6 to $3. I have tried using sub as a variable to store the length but am not able to do so correctly. I added comments to each line and the... (4 Replies)
Discussion started by: cmccabe
4 Replies

3. Shell Programming and Scripting

awk to update field using matching value in file1 and substring in field in file2

In the awk below I am trying to set/update the value of $14 in file2 in bold, using the matching NM_ in $12 or $9 in file2 with the NM_ in $2 of file1. The lengths of $9 and $12 can be variable but what is consistent is the start pattern will always be NM_ and the end pattern is always ;... (2 Replies)
Discussion started by: cmccabe
2 Replies

4. Shell Programming and Scripting

awk to adjust coordinates in field based on sequential numbers in another field

I am trying to output a tab-delimited result that uses the data from a tab-delimited file to combine and subtract specific lines. If $4 matches in each line then the first matching sequential $6 value is added to $2, unless the value is 1, then the original $2 is used (like in the case of line... (3 Replies)
Discussion started by: cmccabe
3 Replies

5. Shell Programming and Scripting

How can awk ignore the field delimiter like comma inside a field?

We have a csv file as mentioned below and the requirement is to change the date format in file as mentioned below. Current file (file.csv) ---------------------- empname,date_of_join,dept,date_of_resignation ram,08/09/2015,sales,21/06/2016 "akash,sahu",08/10/2015,IT,21/07/2016 ... (6 Replies)
Discussion started by: gopal.biswal
6 Replies

6. Shell Programming and Scripting

awk to parse field and include the text of 1 pipe in field 4

I am trying to parse the input in awk to include the |gc= in $4 but am not able to. The below is close: awk so far: awk '{sub(/\|]+]++/, ""); print }' input.txt Input chr1 955543 955763 AGRN-6|pr=2|gc=75 0 + chr1 957571 957852 AGRN-7|pr=3|gc=61.2 0 + chr1 970621 ... (7 Replies)
Discussion started by: cmccabe
7 Replies

7. Shell Programming and Scripting

awk repeat one field at all lines and modify field repetitions

Hello experts I have a file with paragraphs begining with a keeping date and ending with "END": 20120301 num num John num num A keepnum1 num num kathrin num num A keepnum1 num num kathrin num num B keepnum2 num num Pete num num A keepnum1 num num Jacob num... (2 Replies)
Discussion started by: phaethon
2 Replies

8. UNIX for Dummies Questions & Answers

awk if one field has more characters than another

Hi all, I've been stuck on how to write a command in awk that looks at two columns and only prints entries where one of the columns has more than or less than a 3 character difference. I need to be able to compare any two columns preferably, but as an example, comparing columns 3 and 4 example... (9 Replies)
Discussion started by: torchij
9 Replies

9. Shell Programming and Scripting

AWK: Pattern match between 2 files, then compare a field in file1 as > or < field in file2

First, thanks for the help in previous posts... couldn't have gotten where I am now without it! So here is what I have, I use AWK to match $1 and $2 as 1 string in file1 to $1 and $2 as 1 string in file2. Now I'm wondering if I can extend this AWK command to incorporate the following: If $1... (4 Replies)
Discussion started by: right_coaster
4 Replies

10. Shell Programming and Scripting

awk, comma as field separator and text inside double quotes as a field.

Hi, all I need to get fields in a line that are separated by commas, some of the fields are enclosed with double quotes, and they are supposed to be treated as a single field even if there are commas inside the quotes. sample input: for this line, 5 fields are supposed to be extracted, they... (8 Replies)
Discussion started by: kevintse
8 Replies
Login or Register to Ask a Question