loops


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting loops
# 1  
Old 01-05-2011
loops

Hi All

I have some directories on our server which are containing .csv files. i need to print value of cell "B2" from those csv files. Please advise.

I have tried head command as example: head -2 */Book_Collection_Report_1_-_Collection_Requests_trials.csv | sed -n "3p" | awk -F"," '{print$1}'
but it given me output of first file's value..

thanks in advance
Yash Smilie
# 2  
Old 01-05-2011
assuming "*/Book_Collection_Report_1_-_Collection_Requests_trials.csv" will result the csv files you need,

Code:
awk -F, 'FNR==2 {print $2}' */Book_Collection_Report_1_-_Collection_Requests_trials.csv

# 3  
Old 01-05-2011
Thanks Anchal

It worked.... Smilie

---------- Post updated at 03:36 PM ---------- Previous update was at 03:19 PM ----------

When i print cell value of "B2" it gives result fine. But in some cases cell B2 having "," comma also example- "ALBERT SLOMAN LIBRARY, UNIVERSITY OF ESSEX - 8073". It split it into two parts.

Query--"awk -F, 'FNR==2 {print $1}' */Book_Collection_Report_1_-_Collection_Requests_trials.csv"

Please advise.
# 4  
Old 01-05-2011
What output you are getting? I didn't understand the split thing.
The example you provided contains a space after comma. so there would be a leading space in the output.

if cell B2 having comma, that means field 2 is null, in that case what is the required output? comma or null?
# 5  
Old 01-05-2011
Actually we needed the cell value with comma also as i example below.... I have made the changes in your query at my end & now i m getting perfect result which i need....
Anyway many thanks for your advise promptly.

awk -F,',' 'FNR==2 {print $1}' */Book_Collection_Report_1_-_Collection_Requests_trials.csv
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Need help with for loops

Why wont my for statements work? Im trying to get this script to swich to a user an if you put in a start/stop/or restart paramater to do just that for each user. I commented out the actual start/stop actions to test it just by using echos and not do anything hasty in the environment but it... (0 Replies)
Discussion started by: LilyClaro
0 Replies

2. UNIX for Dummies Questions & Answers

loops with tr

Hello, I'm not sure if this is more appropriate for the 'unix for dummies' or the 'unix for experts' forum because I'm new to this forum and this is the second topic I've discussed, but if you could let me know which one was more appropriate for something like this, please do! So in tr (an... (2 Replies)
Discussion started by: juliette salexa
2 Replies

3. Shell Programming and Scripting

Loops

Hi All, I want to execute a script the number of times a user enters. Please can you advise on hor can I do the same. Many Thanks, Shazin (4 Replies)
Discussion started by: Shazin
4 Replies

4. Shell Programming and Scripting

Help with the 2 for loops

#!/bin/bash IFS=$'\n' A= a c b t g j i e d B= t y u i o p counter=0 found="" for i in $(cat $A) do for j in $(cat $B) do if then found="yes" fi done if then (1 Reply)
Discussion started by: vadharah
1 Replies

5. UNIX for Dummies Questions & Answers

Help with While Loops

I am traversing down a list, and I am not quite sure how to tell the loop to break when it's done going through the file. #!/bin/sh while : do read list <&3 echo $list done is the code. The file "list" is simply 5 4 3 2 1 any advice on how to break the loop after the file is... (1 Reply)
Discussion started by: MaestroRage
1 Replies

6. Shell Programming and Scripting

while loops

Hi I've a file like so: Now, I want to read my file and take ex. the Media ID and the Type for each groups of Media (Media1,Media2,...,Media(n): cat /tmp/file|\ while read FILE do while $(FILE|cut -d: -f1)=Media$i do #here will be some test, ex: #if Media ID < 23 ... (4 Replies)
Discussion started by: nymus7
4 Replies

7. UNIX for Dummies Questions & Answers

two loops

Hi, how can I use "for" to have two loops : this is my script : for i in (A B C) do for j in (a b c) do echo $i$j done done #End I want to print out Aa Ab Ac .... But I have error message : syntax error at line 1 : `(' unexpected Many thanks before. How should I use "for" ?? (2 Replies)
Discussion started by: big123456
2 Replies

8. UNIX for Dummies Questions & Answers

While Loops

I'm trying to create a loop that will prompt the user for 15 values, not forcing them to enter all 15. If the user enters through one or more of the prompts the null value needs to be converted to 0, otherwise set the parameter = to the value entered: ex. Please enter file no #1: 17920 ... (4 Replies)
Discussion started by: vdc
4 Replies

9. Shell Programming and Scripting

Loops within loops

I am running on HPUX using ksh. I have a script that uses a loop within a loop, for some reason the script seems to hang on a particuliar record. The record is fine and hits the condition in Blue. If I kill the 1st loop process the script continues on with no problem. Begin code> <Some... (8 Replies)
Discussion started by: bthomas
8 Replies

10. UNIX for Dummies Questions & Answers

loops?

hello....very new user to unix...and i have a question..i am not sure if there is such a thing For example...the user is asked if he likes Bananas....if he says yes.... echo You like Bananas $name at the end of the script it echos all that the user has entered so they can read it.... but... (1 Reply)
Discussion started by: jonas27
1 Replies
Login or Register to Ask a Question