Sponsored Content
Full Discussion: Simple LOOP script help
Top Forums Shell Programming and Scripting Simple LOOP script help Post 302340403 by wpeckham on Monday 3rd of August 2009 10:16:58 AM
Old 08-03-2009
Loop

Why not something simple, like
for foo in 0 1 2 3 4 5 6 7 8 9 10 ; do
echo "Count is ${foo} "
pwd
ls -l
sleep 30
done


if you are going to iterate over a known and manageable range like this, for MAY be more appropriate than while.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Simple script loop question

Hey all. Thanks in advance for any help you can give, hopefully this is an easy one. I want to create a loop to run a simple performance monitor like vmstat and record it to a file, but have very limited scripting skills (obviously). Starting with this... date >> /var/log/perfmon.log vmstat... (2 Replies)
Discussion started by: mattlock73
2 Replies

2. Shell Programming and Scripting

simple for loop

i have the following process running in background: when i give "ps -lef" ------------------------------------------------------------------------ user2 user1 user1 user3 user1 user4 user5 user4 user3 user4 user2 user1 user1 user3 user1 user4 (3 Replies)
Discussion started by: ali560045
3 Replies

3. Shell Programming and Scripting

simple while loop

i have a script called file2 #!/bin/ksh i=0 while do echo $i >> result.txt i=`expr $i + 1` done echo "***********************" >> result ------------------------------------------------------------------- (10 Replies)
Discussion started by: ali560045
10 Replies

4. Shell Programming and Scripting

A simple (?) loop

I have what I believe is a simple programming question. I have a text file that looks like: mol 1 G:\stereo01.hin block text ... ... ... endmol 1 However, I would like a file that repeats this entire block of text several times over. The lines of text in the middle remain the same for each... (2 Replies)
Discussion started by: red baron
2 Replies

5. UNIX for Dummies Questions & Answers

simple script with while loop getting problem

Hello forum memebers. can you correct the simple while program. #! /bin/ksh count=10 while do echo $count count='expr$count-1' done I think it will print 10 to 1 numbers but it running for indefinite times. (2 Replies)
Discussion started by: rajkumar_g
2 Replies

6. Shell Programming and Scripting

Help making simple perl or bash script to create a simple matrix

Hello all! This is my first post and I'm very new to programming. I would like help creating a simple perl or bash script that I will be using in my work as a junior bioinformatician. Essentially, I would like to take a tab-delimted or .csv text with 3 columns and write them to a "3D" matrix: ... (16 Replies)
Discussion started by: torchij
16 Replies

7. Shell Programming and Scripting

Simple loop using for

Dear experts, I am writing a bash script. At some point of the program I need to have 'for' loop. For simplicity I tried with some other simple code. The format of the loop is given below. k=51 m=55 for j in {$k..$m};do w=$(($j+2)) z=$(($j+9)) echo "$w, $z" done But my... (4 Replies)
Discussion started by: vjramana
4 Replies

8. Shell Programming and Scripting

simple while loop script to check a connection

Hi, I am completely new to shell scripting. Basically I am wanting to create a simple while loop script to check if a network connection is available from 'netstat -a' and if its present then output a character to the serial port. I think i am nearly there.. but need some assistance.. this is... (9 Replies)
Discussion started by: zippyzip
9 Replies

9. Shell Programming and Scripting

[Solved] Simple script not working- for loop

Hi all, Please guide me writing this script Follwing is the file which I have created, which contains the files to be copied. cat system1-dr.txt /etc/passwd /etc/shadow /etc/group /etc/vfstab /etc/profile /etc/default/init /etc/shells /etc/dfs/dfstab /etc/dfs/sharetab... (11 Replies)
Discussion started by: manalisharmabe
11 Replies

10. Shell Programming and Scripting

Help with simple bash script involving a loop

Dear unix wizards, I'd be very grateful for your help with the following. I have a hypothetical file (file.txt) with three columns: 111 4 0.01 112 3 0.02 113 2 0.03 114 1 0.04 115 1 0.06 116 2 0.02 117 3 0.01 118 4 0.05 Column 2 consists of pairs of integers from 1 to 4 (each... (5 Replies)
Discussion started by: aberg
5 Replies
MHPATH(1)							     [nmh-1.5]								 MHPATH(1)

NAME
mhpath - print full pathnames of nmh messages and folders SYNOPSIS
mhpath [+folder] [msgs] [-version] [-help] DESCRIPTION
mhpath expands and sorts the message list `msgs' and writes the full pathnames of the messages to the standard output separated by new- lines. If no `msgs' are specified, mhpath outputs the current mail folder's pathname instead. If the only argument is `+', your nmh "Path" is output; this can be useful in shell scripts. Contrasted with other nmh commands, a message argument to mhpath may often be intended for writing. Because of this: 1) the name "new" has been added to mhpath's list of reserved message names (the others are "first", "last", "prev", "next", "cur", and "all"). The new message is equivalent to the message after the last message in a folder (and equivalent to 1 in a folder without mes- sages). The "new" message may not be used as part of a message range. 2) Within a message list, the following designations may refer to messages that do not exist: a single numeric message name, the single message name "cur", and (obviously) the single message name "new". All other message designations must refer to at least one existing message, if the folder contains messages. 3) An empty folder is not in itself an error. A message number less than that of the smallest existing message in a folder is treated as if the message already exists. A message number greater than that of the highest existing message in a folder causes an "out of range" error message to be displayed. As part of a range designation that contains messages that do exist, message numbers less than the smallest, or greater than the highest, existing message in a folder are ignored. Examples: The current folder foo contains messages 3 5 6. Cur is 4. % mhpath /r/phyl/Mail/foo % mhpath all /r/phyl/Mail/foo/3 /r/phyl/Mail/foo/5 /r/phyl/Mail/foo/6 % mhpath 2001 mhpath: message 2001 out of range 1-6 % mhpath 1-2001 /r/phyl/Mail/foo/3 /r/phyl/Mail/foo/5 /r/phyl/Mail/foo/6 % mhpath new /r/phyl/Mail/foo/7 % mhpath last new /r/phyl/Mail/foo/6 /r/phyl/Mail/foo/7 % mhpath last-new mhpath: bad message list last-new % mhpath cur /r/phyl/Mail/foo/4 % mhpath 1-2 mhpath: no messages in range 1-2 % mhpath first:2 /r/phyl/Mail/foo/3 /r/phyl/Mail/foo/5 % mhpath 1 2 /r/phyl/Mail/foo/1 /r/phyl/Mail/foo/2 mhpath is also useful in back-quoted operations: % cd `mhpath +inbox` % echo `mhpath +` /r/phyl/Mail FILES
$HOME/.mh_profile The user profile PROFILE COMPONENTS
Path: To determine the user's nmh directory Current-Folder: To find the default current folder SEE ALSO
folder(1) DEFAULTS
`+folder' defaults to the current folder `msgs' defaults to none CONTEXT
None BUGS
Like all nmh commands, mhpath expands and sorts [msgs]. So don't expect mv `mhpath 501 500` to move 501 to 500. Quite the reverse. But mv `mhpath 501` `mhpath 500` will do the trick. Out of range message 0 is treated far more severely than large out of range message numbers. MH.6.8 11 June 2012 MHPATH(1)
All times are GMT -4. The time now is 07:32 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy