Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

while loop to add text to the end of a file

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting while loop to add text to the end of a file
# 1  
Old 07-06-2010
while loop to add text to the end of a file
Hi all,

I've got 2 files.

File 1 has a list say
a
b
c
d
e
f

File 2 got
start=

What I want is to create File 3 which look like this
start=a,b,c,d,e,f

So is it possible to loop throught File1 to echo it into File3 in one line?

Thanks
# 2  
Old 07-06-2010
Code:
awk 'NR==FNR||FNR==1{printf $0;next}{printf ",%s",$0}' File2 File1 > File3

This User Gave Thanks to bartus11 For This Post:
stinkefisch
# 3  
Old 07-06-2010
bash, and ksh93 can do this:
Code:
var="$(<file1)"
echo "$(<file2)${var//$'\n'/,}" > file3

Last edited by daPeach; 07-06-2010 at 02:36 PM..
# 4  
Old 07-06-2010
Perfect thanks
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Add text to the end of line

Seems simple but ive been searching for a good hour of so I have a text file and would like to add a string to the end of line 5 ( as an example) to ake tings hard the line number we have to add the text to is stored in a variable cunningly name $Line_to_append any ideas on how this could... (2 Replies)
Discussion started by: dunryc
2 Replies

2. Windows & DOS: Issues & Discussions

2 Questions: replace text in txt file, add text to end of txt file

so... Lets assume I have a text file. The text file contains multiple "#" symbols. I want to replace all thos "#"s with a STRING using DOS/Batch I want to add a certain TEXT to the end of each line. How can I do this WITHOUT aid of sed, grep or anything linux related ? (1 Reply)
Discussion started by: pasc
1 Replies

3. UNIX for Dummies Questions & Answers

Add strings from one file at the end of specific lines in text file

Hello All, this is my first post so I don't know if I am doing this right. I would like to append entries from a series of strings (contained in a text file) consecutively at the end of specifically labeled lines in another file. As an example: - the file that contains the values to be... (3 Replies)
Discussion started by: gus74
3 Replies

4. Shell Programming and Scripting

Search a string in a text file and add another string at the end of line

Dear All I am having a text file which is having more than 200 lines. EX: 001010122 12000 BIB 12000 11200 1200003 001010122 2000 AND 12000 11200 1200003 001010122 12000 KVB 12000 11200 1200003 In the above file i want to search for string KVB... (5 Replies)
Discussion started by: suryanarayana
5 Replies

5. Shell Programming and Scripting

Script to add backslashes to end of certain lines of text

I'd like to write up notes in a relatively readable format and then use a shell script to add LaTeX formatting. Specifically, I'm trying to figure out how to add the LaTeX newline character (\\) to the end of lines without \begin{} or \end{} statements example notes file: \begin{enumerate} --... (2 Replies)
Discussion started by: icskittles
2 Replies

6. Shell Programming and Scripting

trying to add text to beginning and end of each line

Well here goes: I tried to write a batch file that adds a specific fixed text to each line of an already existing text file. for the adding text infront of each line I tried this: for /F "delims=" %%j in (list.txt) do echo.STARTTEXT\%%j >> list.txt for adding text after each line I... (0 Replies)
Discussion started by: pasc
0 Replies

7. Shell Programming and Scripting

End of file with while loop

(sh shell) I have a function I am using that does a date calculation so I can subtract dates. get_JD () { bc << MSG scale=0 date calculation ………....... MSG } Then I have this little script that runs after it. read XXX < TESTFILE pastdate=`get_JD $XXX` currdate=`get_JD &YYY`... (2 Replies)
Discussion started by: nickg
2 Replies

8. Shell Programming and Scripting

Add text at the end of line conditionally

Hi All, I have a file as below: cat myfile abcdef NA rwer tyujkl na I wish to add the text ".txt" at the end of all lines except the lines starting with NA or na. I know i can add text at the end of line using following command but I am not sure how to valiate the condition. (14 Replies)
Discussion started by: angshuman
14 Replies

9. Shell Programming and Scripting

Add end of char \n on end of file

Hi, I want to add \n as a EOF at the end of file if it does't exist in a single command. How to do this? when I use command echo "1\n" > a.txt and od -c a.txt 0000000 1 \n \n 0000003 How does it differentiate \n and eof in this case? Regards, Venkat (1 Reply)
Discussion started by: svenkatareddy
1 Replies

10. Shell Programming and Scripting

add text to end of text file

Hi, I assume there is a simple solution, but as usual i can't find it! How can i add a line of text to the end of a text file on a new line? i.e file.txt ________________ this is my text file ________________ file.txt ________________ this is my text file WITH A NEW LINE... (6 Replies)
Discussion started by: leeRoberts2007
6 Replies
Login or Register to Ask a Question