cannot get to read from file and save to file


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting cannot get to read from file and save to file
# 1  
Old 08-14-2011
cannot get to read from file and save to file

how can i get this script to read users input from file and save the users input if it is not in the file?
Code:
#!/bin/sh
echo -n "filename:"
read filename
for i in 1 2 3 4 5
do
  echo -n "Enter filename:"
  read lineoftext
  echo "$lineoftext" >> $filename
done


Last edited by Scott; 08-14-2011 at 09:52 PM.. Reason: Code tags
# 2  
Old 08-15-2011
I am not quite sure I understand what you are trying to achieve, but I'm gonna try anyways:

Code:
#!/bin/sh
echo -n "filename:"
read filename
for i in 1 2 3 4 5
do
  echo -n "Enter filename:"
  read lineoftext
  grep -q "$lineoftext" $filename || echo "$lineoftext" >> $filename #append if not there already
done

This User Gave Thanks to mirni For This Post:
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Read a file and save every word in a variable to use

Hello there so i have a txt file containing word like "one two three four plus four five six". I want to save every word in the file into a variable, and then use that variable to generate real numbers and apply the arithmetic value on them. example: the txt files becomes 123 + 456 and... (10 Replies)
Discussion started by: azaiiez
10 Replies

2. Shell Programming and Scripting

Opening a file in vi and automatically save and quit this file using shell script

Hi friends, In my shell script, I want to open a file using vi editor. After opening the file in vi, I want to save and quit this file automatically.... all through shell script. the code segment is: ------------------------------------------------------------ cd ~/netfpga/projects/scone/sw/... (2 Replies)
Discussion started by: sachinteotia
2 Replies

3. Shell Programming and Scripting

Read a file name from a text file and save it in a variable

i have a text file consists of different file names like: line 1: lib/libIMb.so message broker file line 2: lil/imbdfg.lil message broker file i need to extract libIMb.so and imbdfg.lil files from those lines and save them in a variable. so that i can search for... (9 Replies)
Discussion started by: santosh2626
9 Replies

4. Shell Programming and Scripting

FILE_ID extraction from file name and save it in CSV file after looping through each folders

FILE_ID extraction from file name and save it in CSV file after looping through each folders My files are located in UNIX Server, i want to extract file_id and file_name from each file .and save it in a CSV file. How do I do that? I have folders in unix environment, directory structure is... (15 Replies)
Discussion started by: princetd001
15 Replies

5. UNIX for Dummies Questions & Answers

CSV file:Find duplicates, save original and duplicate records in a new file

Hi Unix gurus, Maybe it is too much to ask for but please take a moment and help me out. A very humble request to you gurus. I'm new to Unix and I have started learning Unix. I have this project which is way to advanced for me. File format: CSV file File has four columns with no header... (8 Replies)
Discussion started by: arvindosu
8 Replies

6. Shell Programming and Scripting

Read file and for each line replace two variables, add strings and save output in another file

Hi All, I have a file, let's call it "info.tmp" that contains data like this .. ABC123456 PCX333445 BCD789833 I need to read "info.tmp" and for each line add strings in a way that the final output is put /logs/ua/dummy.trigger 'AAA00001.FTP.XXX.BLA03A01.xxxxxx(+1)' where XXX... (5 Replies)
Discussion started by: Andy_ARG
5 Replies

7. Shell Programming and Scripting

Save cURL verbose output to file or do it like browser "save as.."

hi there ! i have exactly the same problem like this guy here https://www.unix.com/shell-programming-scripting/127668-getting-curl-output-verbose-file.html i am not able to save the curl verbose output.. the sollution in this thread (redirecting stderr to a file) does not work for me.... (0 Replies)
Discussion started by: crabmeat
0 Replies

8. Shell Programming and Scripting

Data fetched from text file and save in a csv file

Hi i have wriiten a script which fetches the data from text file, and saves in the output in a text file itself, but i want that the output should save in different columns. I have the output like: For Channel:response_time__24.txt 1547 data points 0.339 0.299 0.448 0.581 7.380 ... (1 Reply)
Discussion started by: rohitkalia
1 Replies

9. Shell Programming and Scripting

Read popup message and save it in file

Hi, I am trying to automate one of the application using IE:Auotmation in perl My web application has few text fields and 2 buttons "Save Changes" and "Discard Changes".I have written code to enter values to the text fields fetching from input file and click the button "Save Changes".As soon as... (0 Replies)
Discussion started by: jyo123.jyothi
0 Replies

10. Shell Programming and Scripting

Read file from within AWK and save $1 to a variable

Hi I am very new to NAWK programming so this question is probably going to sound really stupid: I have a NAWK script which contains a DO loop. During each loop it runs a FORTRAN program which in turn generates two output files , each one containing 2 integer variables. I would appreciate it... (8 Replies)
Discussion started by: robbiegregg
8 Replies
Login or Register to Ask a Question