09-03-2010
Hi.
It will check that three arguments are passed.
It will not tell you if arguments 1, 2 and 3, or 1, 4 an 7 are passed, as you think of them.
I would suggest you use getopts.
10 More Discussions You Might Find Interesting
1. Answers to Frequently Asked Questions
A good place to start is simple variable passing....
Passing variables from one script to another
The next level is passing a variable into a more complex command such as using a variable in a sed command. There are some simple quoting techniques that are very general. These are mentioned... (0 Replies)
Discussion started by: Perderabo
0 Replies
2. Shell Programming and Scripting
Hi,
I am trying to call a function inside a shell script. Is there a way in which I can make the parameters options in the call?
Please help me with this.
Thanks!!! (2 Replies)
Discussion started by: neeto
2 Replies
3. Shell Programming and Scripting
Hi
I would like to use tar cmd in my script.
I have a variable with filenames, e.g. 1000 records and I would like to paste its values into tar cmd.
For this example I used three elements variable strings.
strings="file1.txt file2.txt file3.txt"
`tar cf file1.tar $strings`
Whether... (1 Reply)
Discussion started by: presul
1 Replies
4. Shell Programming and Scripting
Hi Experts,
There is a shell script that accepts positional parameter between 1-25 to execute case statement of script depending upon the parameter passed.
Now I need to run all the 25 sessions parallely. In each option of case statement it is connecting with sqlplus and executing a select... (11 Replies)
Discussion started by: Opamps123
11 Replies
5. Shell Programming and Scripting
How to declare the two argument for optional switch ?
I have a script that search for a string in current or old zipped log file.
Im using a option something like this
${basename}
Since $1 can have only one argument should be passed when user select swicth -c and -o need to... (3 Replies)
Discussion started by: baraghun
3 Replies
6. Shell Programming and Scripting
I have an awk script which can be used in the following ways:
xi and xf will only be mandatory when processing the file fin.zc.
awk -v xi=0/-0.5 -v xf=80/30 -f ./zc2cmd.awk fin.zc > fout.cmod
awk -f ./zc2cmd.awk -u
awk -f ./zc2cmd.awk --usg
awk -f ./zc2cmd.awk -e
awk -f ./zc2cmd.awk... (1 Reply)
Discussion started by: kristinu
1 Replies
7. Shell Programming and Scripting
Here is my script:
#!/bin/ksh
usage ()
{
echo " Usage: $0 <opt1> <opt2> <opt3> <opt4>"
}
if ; then
usage
exit;
fi
prog -a $1 -b $2 -c $3 -d $4 2>&1 | tee -a ~/$1.log
I want argument 4 to be optional, so if there's no argument for opt4, that it doesn't... (8 Replies)
Discussion started by: guitarscn
8 Replies
8. Shell Programming and Scripting
Hi Unix Gurus,
i am on learning path of unix, and yet to discover many things. I came across with this requirement where i need to pass parameters but the position of parameters is not fixed so after doing some google search got to know "getopts" can handle that. So here is my code:
function... (3 Replies)
Discussion started by: gnnsprapa
3 Replies
9. UNIX for Beginners Questions & Answers
Based on arguments passing in command prompt values should fetch and store in new file.
Sample:-
sh test.sh 10 30 35 45
cat test.sh
..
cut -c $1-$2,$3-$4 file_name >> file_new
...
...
Above sample passing 4 arguments.. but it may differ (sh test.sh 10 30 35 45 70 75 ) based on... (1 Reply)
Discussion started by: Jairaj
1 Replies
10. UNIX for Beginners Questions & Answers
Hi,
Is there a special positional variables for when using the dot (.)?
Scripts are as below:
$: head -100 x.ksh /tmp/y.ksh
==> x.ksh <==
#!/bin/ksh
#
. /tmp/y.ksh 1234 abcd
echo "yvar1 = $yvar1"
echo "yvar2 = $yvar2"
==> /tmp/y.ksh <==
#!/bin/ksh (2 Replies)
Discussion started by: newbie_01
2 Replies
exit(1) User Commands exit(1)
NAME
exit, return, goto - shell built-in functions to enable the execution of the shell to advance beyond its sequence of steps
SYNOPSIS
sh
exit [n]
return [n]
csh
exit [ ( expr )]
goto label
ksh
*exit [n]
*return [n]
DESCRIPTION
sh
exit will cause the calling shell or shell script to exit with the exit status specified by n. If n is omitted the exit status is that of
the last command executed (an EOF will also cause the shell to exit.)
return causes a function to exit with the return value specified by n. If n is omitted, the return status is that of the last command exe-
cuted.
csh
exit will cause the calling shell or shell script to exit, either with the value of the status variable or with the value specified by the
expression expr.
The goto built-in uses a specified label as a search string amongst commands. The shell rewinds its input as much as possible and searches
for a line of the form label: possibly preceded by space or tab characters. Execution continues after the indicated line. It is an error to
jump to a label that occurs between a while or for built-in command and its corresponding end.
ksh
exit will cause the calling shell or shell script to exit with the exit status specified by n. The value will be the least significant 8
bits of the specified status. If n is omitted then the exit status is that of the last command executed. When exit occurs when executing
a trap, the last command refers to the command that executed before the trap was invoked. An end-of-file will also cause the shell to exit
except for a shell which has the ignoreeof option (See set below) turned on.
return causes a shell function or '.' script to return to the invoking script with the return status specified by n. The value will be the
least significant 8 bits of the specified status. If n is omitted then the return status is that of the last command executed. If return
is invoked while not in a function or a '.' script, then it is the same as an exit.
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
break(1), csh(1), ksh(1), sh(1), attributes(5)
SunOS 5.10 15 Apr 1994 exit(1)