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
learn(1)						      General Commands Manual							  learn(1)

NAME
learn - Provides computer-aided instruction for the C shell SYNOPSIS
learn [-directory] [subject] [lesson] The learn command provides computer-aided instruction courses and practice in the use of Tru64 UNIX. OPTIONS
Allows you to exercise a script in a nonstandard place. DESCRIPTION
To get started, enter learn; if this is the first time that you are invoking the learn command, you are guided through a series of ques- tions to determine what type of instruction you want to receive. If you have used learn before and left your last session without completing a subject, the program uses information in $HOME/.learnrc to start you up in the same place you left off. To bypass questions, enter a subject or lesson. In order to enter a lesson, you must know the lesson number that you received in a previ- ous learn command session. If you do not know the lesson number, enter the lesson number as a subject. The learn command searches for the first lesson containing the subject you specified. If the lesson is a - (dash), learn prompts for each lesson; this is useful for debug- ging. You can specify the following subjects: files editor vi morefiles macros eqn C SUBCOMMANDS
There are a few special commands. The bye command terminates a learn session, and the where command tells you of your progress (where m tells you more.) The again command redisplays the text of the lesson and again lesson lets you review lesson. The hint command prints the last part of the lesson script used to evaluate a response, while hint m prints the entire lesson script. This is useful for debugging lessons and might possibly give you an idea about what is expected. EXAMPLES
To take the online lesson about files, enter: learn files You are then prompted for further input. FILES
Playpen directories. Start-up information. SEE ALSO
Commands: csh(1), ex(1) learn(1)
All times are GMT -4. The time now is 08:08 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy