Sponsored Content
Top Forums UNIX for Beginners Questions & Answers Beginner bash - basic shell script 'while' help... Post 303005736 by Meta on Sunday 22nd of October 2017 01:19:28 PM
Old 10-22-2017
Excellent, "break" worked a treat! Many thanks.

Any suggestions as to where to find some decent tutorials on using "while" loops? I don't just want to throw a messy script together and call it quits, I actually want to learn how to do this properly?

Appreciate the quick reply though. Smilie
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Shell Script for Beginner

I have a folder with lots of file. e.g. a.txt, b.txt, c.txt.... I want to put these files from the source directory and place them in a destination directory in a specific order, such as /destination/a/a.txt, /destination/b/b.txt, /destination/c/c.txt, ...... Please help. Thx :confused: (3 Replies)
Discussion started by: aaron_fong
3 Replies

2. Shell Programming and Scripting

Unix beginner. Need some very basic help.

Hey all I'm working on a script that will scour a directory of 6000+ files for a line that at the end has a number. Something like 'The number of outputs is: 39200' I'm trying to devise a script to add all of these numbers up, so far I have the grep statement that pulls out each individual... (7 Replies)
Discussion started by: TiznaraN
7 Replies

3. Shell Programming and Scripting

Beginner shell script help

. ./testFile.sh url=http://ichart.finance.yahoo.com/table.csv?s= suf=&d=5&e=9&f=2009&g=d&a=1&b=4&c=1999&ignore=.csv wget $url$s1$suf; sleep 10; cat header.txt > $s1.txt; chmod 777 $s1.txt; sed '1d' table.csv?s\=$s1 >> $s1.txt; rm -Rf table* Very new at shell scripting as you can see... (3 Replies)
Discussion started by: harte
3 Replies

4. UNIX for Dummies Questions & Answers

Basic Unix bash script help

Hello there Been using Unix bash scripting for two days now so am very new to this. I am currently doing a project now and i'm basically making a noughts and crosses game (or tic tac toe). I have created the board using an array. When I try and check to see if the array is empty using an If... (3 Replies)
Discussion started by: ChrisHoogie
3 Replies

5. Shell Programming and Scripting

Shell script (beginner) need help...

Hello, I'm new to Sheel script and I need your help for a script I need to develop (for me). Indead, I have a software which log all entry from internet and save it in text file. But, the log is practically unreadable because every 256 characters jump to a new line (even if the message is... (5 Replies)
Discussion started by: acidoangel
5 Replies

6. Homework & Coursework Questions

Shell Script (beginner)

1. The problem statement, all variables and given/known data: Arguments: http://farm9.staticflickr.com/8070/8212131370_8b6e8c10c5_c.jpg I am given these three arguments. $1, $2, $3 The first argument is the path to a directory. So, how would I go into the directory and compare files? I... (5 Replies)
Discussion started by: spider-man
5 Replies

7. Shell Programming and Scripting

Bash Script to Ash (busybox) - Beginner

Hi All, I have a script that I wrote on a bash shell, I use it to sort files from a directory into various other directories. I have an variable set, which is an array of strings, I then check each file against the array and if it is in there the script sorts it into the correct folder. But... (5 Replies)
Discussion started by: sgtbobie
5 Replies

8. Shell Programming and Scripting

Help in making a basic bash script

Hi All, I am trying to monitor CPU load of few processes, with the same name. The output that I get from top is the following 28171 root 20 0 1089m 21m 3608 S 103 0.3 15:16.89 /opt/ppp//h264rtptranscoder.bin --videoPort=14504 --audioPort=14505 27589 root 20 0 1060m 23m... (3 Replies)
Discussion started by: liviusbr
3 Replies

9. Shell Programming and Scripting

Beginner here, how to call a bash-script from python properly?

Hi everyone, i have the following script.sh: foo='lsusb | grep Webcam | cut -c16-18' sudo /home/user/public/usbreset /dev/bus/usb/001/$foo when i try to call this script from python using subprocess.call("script.sh", shell=True) it seems that only 'sudo /home/user/public/usbreset' is being... (6 Replies)
Discussion started by: hilfemir
6 Replies

10. Shell Programming and Scripting

If condition shell script beginner

Hi all I have the folloing process that needs checking often: ps -ef | grep ih bscsrtx 206 15901 0 11:28:10 pts/6 0:00 fih -r4 bscsrtx 218 15901 0 11:28:27 pts/6 0:01 aih bscsrtx 29763 15901 4 11:27:16 pts/6 0:59 rdh -prih root 429 27268 0 11:30:15 pts/td ... (13 Replies)
Discussion started by: fretagi
13 Replies
break(1)                                                           User Commands                                                          break(1)

NAME
break, continue - shell built-in functions to escape from or advance within a controlling while, for, foreach, or until loop SYNOPSIS
sh break [n] continue [n] csh break continue ksh *break [n] *continue [n] DESCRIPTION
sh The break utility exits from the enclosing for or while loop, if any. If n is specified, break n levels. The continue utility resumes the next iteration of the enclosing for or while loop. If n is specified, resume at the n-th enclosing loop. csh The break utility resumes execution after the end of the nearest enclosing foreach or while loop. The remaining commands on the current line are executed. This allows multilevel breaks to be written as a list of break commands, all on one line. The continue utility continues execution of the next iteration of the nearest enclosing while or foreach loop. ksh The break utility exits from the enclosed for, while, until, or select loop, if any. If n is specified, then break n levels. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be exited. The continue utility resumes the next iteration of the enclosed for, while, until, or select loop. If n is specified then resume at the n- th enclosed loop. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be used. On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways: 1. Variable assignment lists preceding the command remain in effect when the command completes. 2. I/O redirections are processed after variable assignments. 3. Errors cause a script that contains them to abort. 4. Words that follow a command preceded by ** that are in the format of a variable assignment are expanded with the same rules as a vari- able assignment. This means that tilde substitution is performed after the = sign, and also that word splitting and file name genera- tion are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), exit(1), ksh(1), sh( 1), attributes(5) SunOS 5.10 17 Jul 2002 break(1)
All times are GMT -4. The time now is 04:08 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy