Sponsored Content
Top Forums Shell Programming and Scripting For loop inside awk to read and print contents of files Post 302817931 by Corona688 on Thursday 6th of June 2013 04:29:45 PM
Old 06-06-2013
Sorry about that, awk's getline always confuses me. It uses neither the C nor C++ convention for return value on these things, but some weird hybrid of both, causing the usual while(getline) most programmers expect to become an infinite loop as well.

Last edited by Corona688; 06-06-2013 at 05:37 PM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

read inside a while loop

Hi all, In a while loop, like below... while read line do read choice case $choice in 1) echo "xxx" esac done < file why I can't run the read choice???? (3 Replies)
Discussion started by: dta4316
3 Replies

2. Shell Programming and Scripting

input inside while read loop

Hi all Does anyone have a script that will allow me to stop inside a while read loop. I want to pause the loop until a enter is pressed. e.g. While read line do echo something if LINECOUNT > 40 then read ENTER?"PRESS ENTER TO CONT..." ... (3 Replies)
Discussion started by: jhansrod
3 Replies

3. Shell Programming and Scripting

read command (input) inside the while loop

Hi, 'read' command is not working inside the while loop, How can I solve this? Rgds, Sharif. (2 Replies)
Discussion started by: sharif
2 Replies

4. Shell Programming and Scripting

Print filename inside loop

Im want to print filename inside loop .. the code im using :- Filename_1=abc_20090623_2.csv.lk Filename_2=def_20090623_2.csv.lk i want to extract filename till .csv eg Filename_1=abc_20090623_2 Filename_2=def_20090623_2 How can i do this inside the for loop ... (3 Replies)
Discussion started by: r_t_1601
3 Replies

5. Shell Programming and Scripting

Rename contents inside multiple files

Hi, I have 100 files in a directory. Each file have the following format >CtbRe01234 fdfjdhfkdfkd >CtL2B0456 gjfgfkgjfkgjfk >CmdrE05768 fghdjskksllfkLike this I have many files in the directory. What I want is; rename the header content in each file such that the above file... (6 Replies)
Discussion started by: Lucky Ali
6 Replies

6. Shell Programming and Scripting

Read contents of the file and print

AT ---------- 0 Elapsed: 00:00:00.02 SO ---------- 0 Elapsed: 00:00:00.01 SE ---------- 0 Elapsed: 00:00:00.01 CR ---------- (4 Replies)
Discussion started by: sandy1028
4 Replies

7. Shell Programming and Scripting

script to read the contents of a file and print

Hi, Need help in writing a script to read the contents of this file test Test 00a 00b 00c 00d 00e 00f where it need to read each line to give a display such as form meta from dev 00a , config=Striped; add dev 00b:00f to meta 00a Can any one help me in writing this script (2 Replies)
Discussion started by: praveen1516
2 Replies

8. Shell Programming and Scripting

Update file record inside read loop

Hi, I am reading file records inside a while loop, and want to update the record when certain condition is met. How can I update a file while being read? I want to avoid using temporary files, copy, rename, ... while IFS=',' read -r f1 f2 do function(f1,f2) if then <add... (1 Reply)
Discussion started by: ysrini
1 Replies

9. Shell Programming and Scripting

Use while loop to read file and use ${file} for both filename input into awk and as string to print

I have files named with different prefixes. From each I want to extract the first line containing a specific string, and then print that line along with the prefix. I've tried to do this with a while loop, but instead of printing the prefix I print the first line of the file twice. Files:... (3 Replies)
Discussion started by: pathunkathunk
3 Replies

10. Shell Programming and Scripting

Unable to read user input inside a loop

Hi, This query is a part of a much more lengthy script. I wish to look for all the files in a folder named "data" which in this case has two files i.e. plan.war and agent.properties. For all the files found under data I wish to ask the user as to where they wish copy the files to. Below,... (14 Replies)
Discussion started by: mohtashims
14 Replies
rc.config(4)						     Kernel Interfaces Manual						      rc.config(4)

NAME
rc.config, rc.config.d - files containing system configuration information SYNOPSIS
DESCRIPTION
The system configuration used at startup is contained in files within the directory The file sources all of the files within and and exports their contents to the environment. /etc/rc.config The file is a script that sources all of the scripts, and also sources To read the configuration definitions, only this file need be sourced. This file is sourced by whenever it is run, such as when the command is run to transition between run states. Each file that exists in is sourced, without regard to which startup scripts are to be executed. /etc/rc.config.d The configuration information is structured as a directory of files, rather than as a single file containing the same information. This allows developers to create and manage their own configuration files here, without the complications of shared ownership and access of a common file. /etc/rc.config.d/* Files This is where files containing configuration variable assignments are located. Configuration scripts must be written to be read by the POSIX shell, and not the Bourne shell, or In some cases, these files must also be read and possibly modified by control scripts or the sam program. See sd(4) and sam(1M). For this reason, each variable definition must appear on a separate line, with the syntax: No trailing comments may appear on a variable definition line. Comment statements must be on separate lines, with the comment character in column one. This example shows the required syntax for configuration files: Configuration variables may be declared as array parameters when describing multiple instances of the variable configuration. For example, a system may contain two network interfaces, each having a unique IP address and subnet mask (see ifconfig(1M)). An example of such a dec- laration is as follows: Note that there must be no requirements on the order of the files sourced. This means configuration files must not refer to variables defined in other configuration files, since there is no guarantee that the variable being referenced is currently defined. There is no protection against environment variable namespace collision in these configuration files. Programmers must take care to avoid such prob- lems. /etc/TIMEZONE The file contains the definition of the environment variable. This file is required by POSIX. It is sourced by at the same time the files are sourced. SEE ALSO
rc(1M). rc.config(4)
All times are GMT -4. The time now is 03:59 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy