Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Two Loops

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Two Loops
# 1  
Old 01-20-2011
Two Loops
Hi please help.

I have a file with two columns.

I want to insert the value of the first column and second column in different sections of a line.

code:


Code:
for line in `cat $1`;
for x in `cat $1 |awk '{print $2}'`;
do
do
echo "print $line and then print $x"
done 
done

It works but prints it twice.

Thanks.
# 2  
Old 01-20-2011
please provide a sample input and a desired output to ease the understanding.
# 3  
Old 01-20-2011
Maybe example input and output helps to understand your needs.
# 4  
Old 01-20-2011
Ok so my file would look like this:

Code:
red blue
black yellow

output would look like this:

Code:
print red and then print blue
print black and then print yellow

thanks!
Moderator's Comments:
Mod Comment
Please use code tags when posting data and code samples!
Last edited by vgersh99; 01-20-2011 at 02:10 PM.. Reason: code tags, please!
# 5  
Old 01-20-2011
Code:
nawk '{print "print", $1, "and then print", $2}' myFile

# 6  
Old 01-20-2011
is there a way to do this with loops? Because actually my lines are not the same and they have "," and quotes

so example:
Code:
"'',165,1293537000,0,'Logs - ABC','$line','*Log*.log','/usr/apps/collectors/$line/log',60,'no',120,'yes',180,'yes'"
"'',198,1295520870,0,'ABC_INBOUND','$line','*$x*','/usr/apps/$line/BR_ABC/ARCHIVE',60,'no',120,'no',180,'yes'"


So basically i have 13 lines with this kind of syntax that I need to print
Some have values for only column 1 and other for both column 1 and 2.
Your syntax was easy but since i have so many charecters to esc it makes it tough. That's why i was trying with a for loop
Last edited by vgersh99; 01-20-2011 at 03:38 PM.. Reason: once again - please use code tags!
# 7  
Old 01-20-2011
I don't follow how using loops will simplify the task at hand....
Maybe if you could quote a representative sample of your input data and a desired output (once again - hopefully using code tags)...
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