a simple while loop Post: 302070835

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Simple while loop question

I have written a script that countsdown from 20 to 1 and has a sleep in between each count but I want to make it sleep for half a second but I get errors whenever I change the sleep from 1 second to half a second any ideas? I am using Sun OS 5.9 heres what I've got: X=0 while do echo...

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Hi All Just started with shell scripts and am stumped by, what is to most of you no doubt, a simple issue. All I'm trying to do is prompt a user for input and writing to a log file. If the user types the word 'stop', then the program should halt. If the word typed is 'clear', then the log file...

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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

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i have a script called file2 #!/bin/ksh i=0 while do echo $i >> result.txt i=`expr $i + 1` done echo "***********************" >> result -------------------------------------------------------------------

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Hello, I have a file with over 48000 lines and I need to select certain parts of the file. I know which awk commands work for what I need, I just need some help putting together a loop that will repeat the command. These are the commands that work: awk 'NR < 6' plot.out > plot.test (I get...

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I need to chmod a bunch of files with a specific extension in one directory. If I understand correctly first I would run ls command like this ls -R | grep .mp3 > /tmp/list once I have the output file I should be able to run a loop to chmod all the files in the list created. This is where...

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Does any body can help me with a loop in this example? if then if then runner=$(grep "$1" "$2") runne=$(grep "$1" "$3") run=$(grep "$1" "$4") fi fi # # Message on screen...

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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...

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bashbug

BASHBUG(1)						      General Commands Manual							BASHBUG(1)

NAME

       bashbug - report a bug in bash

SYNOPSIS

       bashbug [--version] [--help] [email-address]

DESCRIPTION

       bashbug	is  a shell script to help the user compose and mail bug reports concerning bash in a standard format.	bashbug invokes the editor
       specified by the environment variable EDITOR on a temporary copy of the bug report format outline. The user must fill  in  the  appropriate
       fields  and  exit  the  editor.	 bashbug  then	mails the completed report to bug-bash@gnu.org, or email-address.  If the report cannot be
       mailed, it is saved in the file dead.bashbug in the invoking user's home directory.

       The bug report format outline consists of several sections.  The first section provides information about the  machine,	operating  system,
       the  bash  version, and the compilation environment.  The second section should be filled in with a description of the bug.  The third sec-
       tion should be a description of how to reproduce the bug.  The optional fourth section is for a proposed fix.  Fixes are encouraged.

ENVIRONMENT

       bashbug will utilize the following environment variables if they exist:

       EDITOR Specifies the preferred editor. If EDITOR is not set, bashbug defaults to emacs.

       HOME   Directory in which the failed bug report is saved if the mail fails.

       TMPDIR Directory in which to create temporary files and directories.

SEE ALSO

       bash(1)

AUTHORS

       Brian Fox, Free Software Foundation
       bfox@gnu.org

       Chet Ramey, Case Western Reserve University
       chet@po.cwru.edu

GNU Bash-4.0							   1998 July 30 							BASHBUG(1)