Sponsored Content
Top Forums Shell Programming and Scripting How to read each line from input file, assign variables, and echo to output file? Post 302893342 by jim mcnamara on Tuesday 18th of March 2014 04:27:12 PM
Old 03-18-2014
It is not clear what you really want.
But use awk only. awk -F '[ -]' '{awk code here}' infile gives you a way to define field separators, in the example space and hyphen.

example:
Code:
awk -F '[ -]'  '{ print $2, $4, $5 }' infile

Let's start from this. Play with it. If you need more help: Please show us your desired output.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Awk/shell question: Read from file and assign to variables.

Is anyone able to help with writing a program that will do the following: 1. Read the contents of a file, line by line, and on each line, assign each of the two columns to a shell variable. 2. perform an action on the variables 3. Read the next line. Here is what I've gotten so far. ... (3 Replies)
Discussion started by: akbar
3 Replies

2. Shell Programming and Scripting

how can i read text file and assign its values to variables using shell

Hello, I have a cat.dat file, i would like shell to read each 3 lines and set this 3 lines to 3 different variables. my cat.dat is: 11 12 +380486461001 12 13 +380486461002 13 14 +380486461003 i want shell to make a loop and assign 1st line to student_id, 2nd line to... (4 Replies)
Discussion started by: rosalinda
4 Replies

3. Shell Programming and Scripting

How to read a file and assign variables to data?

Hi, I need a simple csh script to read a file containing data like this Buy Transactions : 175 Sell Transactions : 212 Server: sepo2 i want to read both field and its value and assign variables to each.. (2 Replies)
Discussion started by: pravsripad
2 Replies

4. 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

5. Shell Programming and Scripting

Read record from the text file & assign those values to variables in the script

For eg: I have sample.txt file with 4 rows of record like: user1|password1 user2|password2 user3|password3 user4|password4 The username and password is sepsrated by '|' I want to get the 1st row value from the file and assign it to two different variables(username and password) in my... (1 Reply)
Discussion started by: priya001
1 Replies

6. Shell Programming and Scripting

Read file from input and redirect to output file

Hi , i am having an file which contains 5 file_name data, i need to read the file name and will perform certain operation and generate out file names with named as 5 individual file_names for eg: file.txt contains file_name1.txt|hai file_name2.txt|bye file_name3.txt|how... (3 Replies)
Discussion started by: rohit_shinez
3 Replies

7. Shell Programming and Scripting

Read record from the text file contain multiple separated values & assign those values to variables

I have a file containing multiple values, some of them are pipe separated which are to be read as separate values and some of them are single value all are these need to store in variables. I need to read this file which is an input to my script Config.txt file name, first path, second... (7 Replies)
Discussion started by: ketanraut
7 Replies

8. Shell Programming and Scripting

Do While Loop + Read From File + assign line to a variable

Hello, I am using below code for reading from a file and assigning the values to a variable , but it is loosing the value after the loop , please suggest to retain the value of the variable after the loop , while IFS=: read -r line do set $dsc=$line echo 'printing line variable ' $line... (1 Reply)
Discussion started by: ParthThakkar
1 Replies

9. Shell Programming and Scripting

ksh - Read input from file and output CSV i same row

Hello I have the following output and want the output to look: FROM: GigabitEthernet0/0 is up, line protocol is up 1 input errors, 0 CRC, 0 frame, 1 overrun, 0 ignored 275 output errors, 0 collisions, 3 interface resets GigabitEthernet0/1 is up, line protocol is up 0... (4 Replies)
Discussion started by: JayJay2018
4 Replies

10. UNIX for Beginners Questions & Answers

How To Read a File and Assign the line values to an Array?

i have this basic code that i wrote to read a file and place it's values to an array. the source/input file will have multiple strings on it that is separated by a whitespace. sample_list.txt file contents: ACCT1 TABLE1 ACCT2 TABLE2 ACCT3 TABLE3 script file: sample_list.sh ... (3 Replies)
Discussion started by: wtolentino
3 Replies
makedbm(8yp)															      makedbm(8yp)

Name
       makedbm - make a yellow pages dbm file

Syntax
       makedbm [ -i yp_input_file ] [ -o yp_output_name ] [ -d yp_domain_name ] [ -m yp_master_name ] infile outfile
       makedbm [ -u dbmfilename ]

Description
       The command takes the file specified by the argument infile and converts it to a pair of files in format, namely and Each line of the input
       file is converted to a single record.  All characters up to the first tab or space form the key, and the rest of the line is defined as the
       key's  associated data.	If a line ends with a backslash (), the data for that record is continued onto the next line.	It is left for the
       clients of the yellow pages to interpret the number sign (#); does not treat it as a comment character.	The  infile  parameter	can  be  a
       hyphen (-), in which case reads the standard input.

       The  command  is  meant	to  be	used in generating files for the yellow pages service.	The command generates a special entry with the key
       yp_last_modified, which is the date of infile.

Options
       -i     Create a special entry with the key yp_input_file.

       -o     Create a special entry with the key yp_output_name.

       -d     Create a special entry with the key yp_domain_name.

       -m     Create a special entry with the key yp_master_name.  If no master host name is specified, yp_master_name will be set  to	the  local
	      host name.

       -u     Undo a file.  That is, print out a file one entry per line, with a single space separating keys from values.

Examples
       The  following  example shows how a combination of commands can be used to make the yellow pages files and from the file.  The percent sign
       (%) signifies the system prompt.

       % awk 'BEGIN { FS = ":"; OFS = ""; }
	{ print $1, $0 }' /etc/passwd > ptmp
       % makedbm ptmp passwd.byname
       % rm ptmp

       The command creates the file ptmp which is in a form usable by The command uses the ptmp file to create the yellow pages dbm files and  The
       command removes the ptmp file.

See Also
       yppasswd(1yp), dbm(3x), ypmake(8yp)

																      makedbm(8yp)
All times are GMT -4. The time now is 01:09 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy