Using awk to select one field


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Using awk to select one field
# 1  
Old 02-11-2014
Using awk to select one field

Hi,
I saw your post..
I have a dought in awk command...

how to get the output from a file. i need a first column in etc/passwd file in a single column (in indivijual line)...
i couldn't get with this command
Code:
cat /etc/passwd | awk -F ":" '{printf $1}'

Kindly help
Moderator's Comments:
Mod Comment This thread was created from postings hijacking another thread.

When you have a new topic; start a new thread.

Last edited by Don Cragun; 02-11-2014 at 01:32 PM.. Reason: Explain how this thread was created and add CODE tags.
# 2  
Old 02-11-2014
Please always start your own thread. Never hijack someone else's.

Use print instead of printf
Code:
awk -F ":" '{print $1}' /etc/passwd

This User Gave Thanks to Yoda For This Post:
# 3  
Old 02-11-2014
Or supply a format string to printf.
# 4  
Old 02-14-2014
Use print not printf and i have added "sort" as well.

Code:
cat /etc/passwd | awk -F":" '{ print $1 | "sort"}'


Last edited by Franklin52; 02-14-2014 at 07:33 AM.. Reason: Please use code tags
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. 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

2. Shell Programming and Scripting

Select only the lines of a file starting with a field which is matcing a list. awk?

Hello I have a large file1 which has many events like "2014010420" and following lines under each event that start with text . It has this form: 2014010420 num --- --- num .... NTE num num --- num... EFA num num --- num ... LASW num num --- num... (9 Replies)
Discussion started by: phaethon
9 Replies

3. Shell Programming and Scripting

How to select a particular field from a drop-down menu in a webpage using perl script?

Hi Team, I have a requirement to login into URL using username and password , then I have to select a "particular name" from drop-down menu and then Read the values user records etc.... using perl. Is it possible to do in perl script ? (OR) Can you please let me know which scripting... (1 Reply)
Discussion started by: latika
1 Replies

4. Programming

Select and group by excluding one field

Dear community, I have a very simple query (on Oracle 11g) to select 3 fields: select field1, field2, field3, count(*) from table where... group by field1, field2, field3 having count(*) > 10;Now, what I need, is exclude "field3" from the "group by" since I only need field 1 and 2 to be... (2 Replies)
Discussion started by: Lord Spectre
2 Replies

5. 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

6. 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

7. Shell Programming and Scripting

How to select or make reference to, part of a field

For a field format such as AAL1001_MD82, how do I select(and use in if statement) only the last four elements( in this case MD82) or the first three elements (in this case AAL)? For instance, how do I do the following - if first three elements of $x == yyy, then ... (5 Replies)
Discussion started by: akshaykr2
5 Replies

8. Shell Programming and Scripting

::select statement return value with correct field size::

Hi Everyone, I am facing a problem regarding the select from sybase, the return with the incorrect size. For example, field is NAME(20). After i selected from sybase, the result is nicky. after i assign it to another declaration variable, it will be in actual name "nicky" , what i need... (10 Replies)
Discussion started by: ryanW
10 Replies

9. Shell Programming and Scripting

select a particular field

hi i have a file wwww-qqq.eee ksdklfsdf adm,as.d,am sdsdlasdjl sadsadasda wwww-qqq.eee ksdklfsdf adm,as.d,am sdsdlasdjl sadsadasda wwww-qqq.eee ksdklfsdf adm,as.d,am sdsdlasdjl sadsadasda wwww-qqq.eee ksdklfsdf adm,as.d,am sdsdlasdjl sadsadasda wwww-qqq.eee ksdklfsdf adm,as.d,am... (4 Replies)
Discussion started by: Satyak
4 Replies

10. Shell Programming and Scripting

select last field from a file

hi everybody i would to select the last field of a file here as you can see i select the field number 8 y=`cat sortie2 | grep "^"| grep "starting"| awk '{ print $8}'` but line can containt more or less field in never know, i just know is the last one so i wondering to know if is... (3 Replies)
Discussion started by: kykyboss
3 Replies
Login or Register to Ask a Question