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Shell Programming and Scripting
script question
Post 98059 by reborg on Sunday 5th of February 2006 05:38:35 PM
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1. UNIX for Dummies Questions & Answers
Hi,
First off I usually script in the bash shell.
Ok, in my script I am checking to see if the filename has a .txt extension.
So I was trying:
if
then
echo "Must contain a valid .txt extension"
fiandif ]
then
echo "Must contain a valid .txt extension"
fiBut no go the first... (5 Replies)
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Correct me if i'm wrong, but by adding "#!/bin/ksh" at the start of a script will force it to run in the korn shell no matter which shell you are currently using?? (2 Replies)
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Can anyone help with these scripts? Im new to this and struggling. Thank you for your help.
Pre-requisites
Create a file with x amount of lines in it, the content of your choice. (Have already done this)
Script 1
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Anyone know why this won't work?
#!/usr/bin/ksh
for db in `cat /etc/oratab|egrep ':N|:Y' | grep -v \* | cut -f1 -d":"`
do
echo "************************"
echo "database is $db"
echo "************************"
done
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Here is my problem.
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if
then
LIST="user@email.com"
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I know some tricks like this : echo " E"; sleep 0.1; clear;
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LEARN ABOUT MINIX
shift
shift(1) User Commands shift(1) NAME
shift - shell built-in function to traverse either a shell's argument list or a list of field-separated words SYNOPSIS
sh shift [n] csh shift [variable] ksh * shift [n] DESCRIPTION
sh The positional parameters from $n+1 ... are renamed $1 ... . If n is not given, it is assumed to be 1. csh The components of argv, or variable, if supplied, are shifted to the left, discarding the first component. It is an error for the variable not to be set or to have a null value. ksh The positional parameters from $n+1 $n+1 ... are renamed $1 ..., default n is 1. The parameter n can be any arithmetic expression that evaluates to a non-negative number less than or equal to $#. 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, following 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 word splitting and file name generation are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), ksh(1), sh(1), attributes(5) SunOS 5.10 15 Apr 1994 shift(1)