Sponsored Content
Top Forums Shell Programming and Scripting Use while loop - output variable Post 302884728 by djzah on Tuesday 21st of January 2014 01:37:07 PM
Old 01-21-2014
Use while loop - output variable

I'm very much a newbie and hence why this is going to be a stupid question.

I'm attempting to create a korn shell script that pulls zone file locations and includes the copy command in the output. What?

getzonedir.ksh
Code:
#!/bin/ksh
while read -r domain
do ls */*"$domain" > $dir1
echo "cp $dir1 $dir1-$2"
done < $1

$1 = user1domains.txt
Code:
hosangit.com
djzah.com
ourholychurch.com

$2 = usr1bak

RUN: ./getzonedir.ksh user1domains.txt usr1bak

Expected output...
first step would be the domain zone files are found, so stepping through the first it would find primary.dir/db.hosangit.com (this I want to become a variable so I can echo the command needed to backup this zone file for example "cp primary.dir/db.hosangit.com primary.dir/db.hosangit.com-usr1bak

Am I going about this all wrong?
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to give a variable output name in a shell script inside a for loop

Hi all I run my program prog.c in the following way : $ ./prog 1 > output.txt where 1 is a user defined initial value used by the program. But now I want to run it for many a thousand initial values, 1-1000, and store all the outputs in different files. Like $ ./prog 1... (1 Reply)
Discussion started by: alice06
1 Replies

2. Shell Programming and Scripting

[SHELL: /bin/sh] For loop using variable variable names

Simple enough problem I think, I just can't seem to get it right. The below doesn't work as intended, it's just a function defined in a much larger script: CheckValues() { for field in \ Group_ID \ Group_Title \ Rule_ID \ Rule_Severity \ ... (2 Replies)
Discussion started by: Vryali
2 Replies

3. Shell Programming and Scripting

printing variable with variable suffix through loop

I have a group of variables myLINEcnt1 - myLINEcnt10. I'm trying to printout the values using a for loop. I am at the head banging stage since i'm sure it has to be a basic syntax issue that i can't figure out. For myIPgrp in 1 2 3 4 5 6 7 8 9 10; do here i want to output the value of... (4 Replies)
Discussion started by: oly_r
4 Replies

4. UNIX for Dummies Questions & Answers

Loop and variable not exactly variable: what's wrong

Hello guys, This truly is a newbie question. I'm trying to make a loop to execute simultaneous commands indefinitely while using variable. Here is how my mess looks like (this is just an example): #!/bin/bash IP=`shuf -n 1 IP.txt` # I figured this would be easier to select random lines... (4 Replies)
Discussion started by: bobylapointe
4 Replies

5. Shell Programming and Scripting

Array Variable being Assigned Values in Loop, But Gone when Loop Completes???

Hello All, Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....? I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping through a string containing some of these "Illegal Characters". Now... (5 Replies)
Discussion started by: mrm5102
5 Replies

6. UNIX for Dummies Questions & Answers

Need to get a loop variable from output of a command

Hi, I am trying to get a loop counter i and set its value as the ouput of a command: i=`printmo TEST1 | grep -i TEST2 | wc -l` Then I want to use i as counter to run a loop i number of times. Like if i gets a value of 5 I'll have to run loop 5 times. But will i here be a numeric... (3 Replies)
Discussion started by: pat_pramod
3 Replies

7. Shell Programming and Scripting

[Solved] How to increment and add variable length numbers to a variable in a loop?

Hi All, I have a file which has hundred of records with fixed number of fields. In each record there is set of 8 characters which represent the duration of that activity. I want to sum up the duration present in all the records for a report. The problem is the duration changes per record so I... (5 Replies)
Discussion started by: danish0909
5 Replies

8. Shell Programming and Scripting

Print for loop variable in output too

Hi, This is my input file cat input chr1:100-200 chr1:220-300 chr1:300-400 Now, I would like to run a program that will take each of the input record for i in `cat input`; do program $i | wc -l;done the output will be something like 10 20 30 But, I would like to print the... (4 Replies)
Discussion started by: jacobs.smith
4 Replies

9. UNIX for Advanced & Expert Users

Passing variable as input & storing output in other variable

I have a below syntax its working fine... var12=$(ps -ef | grep apache | awk '{print $2,$4}') Im getting expected output as below: printf "%b\n" "${VAR12}" dell 123 dell 456 dell 457 Now I wrote a while loop.. the output of VAR12 should be passed as input parameters to while loop and results... (5 Replies)
Discussion started by: sam@sam
5 Replies

10. UNIX for Beginners Questions & Answers

How do I assign the output of a command to a variable within a loop in bash?

In the else of the main if condition . else set lnk = $(readlink -f <path> | cut -d '/' -f7) echo "$lnk" if ] When I run the above on command line , the execution seems to be fine and I get the desired output. But when I try to assign it to a variable within a loop... (12 Replies)
Discussion started by: sankasu
12 Replies
SCRIPT(1)							   User Commands							 SCRIPT(1)

NAME
script - make typescript of terminal session SYNOPSIS
script [options] [file] DESCRIPTION
script makes a typescript of everything displayed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1). If the argument file is given, script saves the dialogue in this file. If no filename is given, the dialogue is saved in the file type- script. OPTIONS
-a, --append Append the output to file or to typescript, retaining the prior contents. -c, --command command Run the command rather than an interactive shell. This makes it easy for a script to capture the output of a program that behaves differently when its stdout is not a tty. -e, --return Return the exit code of the child process. Uses the same format as bash termination on signal termination exit code is 128+n. -f, --flush Flush output after each write. This is nice for telecooperation: one person does `mkfifo foo; script -f foo', and another can supervise real-time what is being done using `cat foo'. --force Allow the default output destination, i.e. the typescript file, to be a hard or symbolic link. The command will follow a symbolic link. -q, --quiet Be quiet (do not write start and done messages to standard output). -t[file], --timing[=file] Output timing data to standard error, or to file when given. This data contains two fields, separated by a space. The first field indicates how much time elapsed since the previous output. The second field indicates how many characters were output this time. This information can be used to replay typescripts with realistic typing and output delays. -V, --version Display version information and exit. -h, --help Display help text and exit. NOTES
The script ends when the forked shell exits (a control-D for the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)). Certain interactive commands, such as vi(1), create garbage in the typescript file. script works best with commands that do not manipulate the screen, the results are meant to emulate a hardcopy terminal. It is not recommended to run script in non-interactive shells. The inner shell of script is always interactive, and this could lead to unexpected results. If you use script in the shell initialization file, you have to avoid entering an infinite loop. You can use for example the .profile file, which is read by login shells only: if test -t 0 ; then script exit fi You should also avoid use of script in command pipes, as script can read more input than you would expect. ENVIRONMENT
The following environment variable is utilized by script: SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
csh(1) (for the history mechanism), scriptreplay(1) HISTORY
The script command appeared in 3.0BSD. BUGS
script places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. script is primarily designed for interactive terminal sessions. When stdin is not a terminal (for example: echo foo | script), then the session can hang, because the interactive shell within the script session misses EOF and script has no clue when to close the session. See the NOTES section for more information. AVAILABILITY
The script command is part of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils /util-linux/>. util-linux June 2014 SCRIPT(1)
All times are GMT -4. The time now is 06:40 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy