09-07-2012
When you invoked the script with sh test1.sh the Shebang line is ignored and the script was run with Bourne Shell. The syntax was incorrect for Bourne Shell. It would of course have worked with csh test1.sh.
When you made the script executable and ran it as ./test1.sh the Shebang line was executed and the script ran with C Shell.
Unless you have a very good reason for using C Shell, you will find learning Bourne Shell much more useful in the modern unix and Linux world. All system scripts are Bourne Shell or some enhance form of Bourne Shell.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
what is the environment variable used for getting the <machine name> .
hello $LOGNAME,welcome to <??>
I want to print the machine name in the place of <??>
Please help. (6 Replies)
Discussion started by: mehuldoshi
6 Replies
2. Shell Programming and Scripting
First of all I am using C shell.
I have a variable destDirectory that holds a path.
the path includes an environment variable($user)
when I try to execute a command within the script, the $destDirectory gets replaced with the path, but the environment variable is not replaced. I end up... (2 Replies)
Discussion started by: karyn1617
2 Replies
3. Shell Programming and Scripting
i am not clear at some places i saw that assigning a env var with colon ':' like
export PATH=/usr/bin:/usr/ucb:/etc:/usr/sbin:.:/usr/platform/sun4u/sbin
here you can find : and a . and again :
could some one explain how it works...
see all is starting from root directory,
how : is used and... (6 Replies)
Discussion started by: Arunprasad
6 Replies
4. UNIX for Advanced & Expert Users
Hi,
I had a PDF file in Windows, I ftp'ed it to UNIX environment. Now, I couldnot read the same file in the UNIX environment. Is there any possible way to read this file? I need to give this file as input
Thanks,
Geetha (4 Replies)
Discussion started by: iamgeethuj
4 Replies
5. Shell Programming and Scripting
Hi All
I have something that from the outset seems really trivial but in practice is not quite working.
I have the following code sample in my shell script which illustrates the problem
echo "enter home directory"
read home
mkdir $home/newdir
The user then enters a logical $HOME... (3 Replies)
Discussion started by: kingpin2502
3 Replies
6. UNIX for Dummies Questions & Answers
Dear Unix gurus,
Perhaps I'm missing something,.....I'm having the most infernal difficulty getting AWK to read in an environment variable. For example,
value=5
awk '{print ""$value""}'
should return the number "5". This is not the case. Can somebody help?:confused:
cheers (7 Replies)
Discussion started by: tintin72
7 Replies
7. Shell Programming and Scripting
I cannot get the following substitution ($ORACLE_SID) to work:
The variable ORACLE_SID is set to wardin my environment. It has been exported.
I have a text file called test.dat:
/u07/oradata/${ORACLE_SID}/extab/finmart/summit/ps_voucher_line_crnt_ex.dbf... (2 Replies)
Discussion started by: bradyd
2 Replies
8. Solaris
Hi All,
I am new to SUN Solaris.I have some questions regarding environment variable.:confused:
Q1. Where the environment variables available in Solaris.
Q2. What command used here.
Q3. Can a user change this .Suppose i want to change the bash to ksh can it be possible here. Or i need to... (2 Replies)
Discussion started by: jdash.ps
2 Replies
9. Shell Programming and Scripting
Hello!
For the moment some settings in my .bashrc contain the password of my company's firewall, which is not a good idea. I would like to use the string "PASSWORD" set in .bashrc and a script that changes all appearances of "PASSWORD" in the environment variables by the actual password (which... (4 Replies)
Discussion started by: markolopa
4 Replies
10. Shell Programming and Scripting
I'm trying to make a sed substitution where the substitution pattern is an environment variable to be expanded, but the variable contains a "slash".
sed -e 's/<HOME_DIRECTORY>/'$HOME'/'This gives me the following error:
sed: -e expression #1, char 21: unknown option to `s'Obviously this is... (2 Replies)
Discussion started by: Ilja
2 Replies
biff(1) General Commands Manual biff(1)
NAME
biff - Notifies users when mail arrives
SYNOPSIS
biff [y | n]
DESCRIPTION
The biff command informs the system whether you want to be notified when mail arrives during the current terminal session. The following
command enables notification: biff y
The following command disables notification: biff n
When mail notification is enabled, the From: and Subject: header lines and up to the first five lines of the message are displayed. The
total display is 560 characters, or seven lines terminated by newline characters, whichever occurs first.
The biff y command is often included in the $HOME/.login or $HOME/.profile file to be executed each time you log in.
The biff command operates asynchronously. For synchronous notification, use the MAIL variable of sh or ksh, or the mail variable of csh.
EXAMPLES
To display the current setting, enter: biff To be notified during the current terminal session whenever mail arrives, enter the following
in your $HOME/.login or $HOME/.profile file: biff y
FILES
Read by login shell (after login. User profile.
SEE ALSO
Commands: comsat(8), csh(1), ksh(1), mail(1), mailx(1), Bourne Shell sh(1b), POSIX Shell sh(1p)
biff(1)