10-21-2009
Help me to solve some question about shell Script
Example output:
Please enter a non-negative number: 3
3! = 3 X 2 X 1
= 6
Please enter a non-negative number: 10
10! = 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1
= 3628800
Please enter a non-negative number: -1
Invalid input
-
- By using for loop only, write a shell script to calculate factorial like example above
- By using while loop only, write a shell script to calculate factorial like example above
Thx for you help!!!
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Suppose I have a script named "sc.sh"
in the script how to print out its name "sc.sh"? (3 Replies)
Discussion started by: meili100
3 Replies
2. Shell Programming and Scripting
Find the first alphabetic letter from the input:
Accept a group of upper case alphabetic letters one at a time, ended with a 0, and find and display the first letter in alphabetic order. For example, input of D, G, T, S, V, G, C, K, P should result in C.
Any invalid input character (eg. #, $, 3,... (1 Reply)
Discussion started by: sbcvn
1 Replies
3. Shell Programming and Scripting
Factorial calculation
Example output:
Please enter a non-negative number: 3
3! = 3 X 2 X 1
= 6
Please enter a non-negative number: 10
10! = 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1
= 3628800
Please enter a non-negative number:... (1 Reply)
Discussion started by: cenco
1 Replies
4. UNIX for Advanced & Expert Users
Hello everybody!
I have no experience with shell Programmer, but I need to compare 02 files. Txt and generate an output or a new file, after the comparisons. see:
If the column 1 of file1 is equal to column 1 of file2, and column 3 of file2 contains the column 4 of file1, output: column1... (4 Replies)
Discussion started by: He2
4 Replies
5. Shell Programming and Scripting
Hi everybody!
I have written some awk scripts that return me some results I need to process. At the moment I use openOffice to process them, but I am trying to find a more efficient solution using possibly a bash or awk script.
I have two files, file1 is in the format:
time position
... (3 Replies)
Discussion started by: Alice236
3 Replies
6. Shell Programming and Scripting
Write a KSH script called cleanse which displays the name of each file in a given directory and allows the user to interactively decide whether or not to keep or delete the specific file.
Notes: Again, please check for errors.
can any one help on this problem ?? (1 Reply)
Discussion started by: babuda0059
1 Replies
7. Shell Programming and Scripting
please solve my problem..... :(
i have a sample input file as
A
A
A
A
B
B
B
B
B
C
C
C
C
C
i want the output such that if the count of A or B or C is greater than 3
A (1 Reply)
Discussion started by: hemanthsaikumar
1 Replies
8. Shell Programming and Scripting
i have one function block in the beginning of my script and there are some commands inside that function which will perform some operations.
And i am invoking that function from my main script by passing some values. Sometimes it is hanging in the middle for some value.
For example:
For 1st... (3 Replies)
Discussion started by: thomasraj87
3 Replies
9. Shell Programming and Scripting
Hi I have data in the below format in two columns in excel which i will copy to notepad.
test as rec1, string
test as rec2, byteint
test as rec3, string
update date as test, datetime
name as tes2 string
I need to add trim function on all the string columns and keep the remaining... (10 Replies)
Discussion started by: pisikar
10 Replies
sh(1) General Commands Manual sh(1)
NAME
sh - Shell, the standard command language interpreter
DESCRIPTION
[Tru64 UNIX] Tru64 UNIX provides two command interpreters with the name sh. The XCU5.0 and POSIX.2 compliant command interpreter sh is
available in the file /usr/bin/posix/sh and is described in the sh(1p) reference page. The Bourne shell, historically known as sh, is
available in the file /usr/bin/sh and is described in the sh(1b) reference page.
[Tru64 UNIX] Your initial, or login, shell is determined by your entry in the file /etc/passwd. This file can be changed only by your sys-
tem administrator. You must use whatever procedures are in place at your location to have this entry changed.
[Tru64 UNIX] If available on your system, you may use the passwd -s or the chsh commands to change your login shell.
Note
This option is not available if your site manages passwords through the Network Information Service (NIS) facility. Check with your system
administrator.
[Tru64 UNIX] Subsequent shells spawned from the initial shell depend on the value in the environment variable BIN_SH. If this variable is
set to xpg4, the POSIX shell is started. If this variable is set to svr4, an SVR4 compliant version of the shell is started. If this vari-
able is unset, the Bourne shell is started. If this variable is set to any other value, an error is reported and the results are unpre-
dictable. See the EXAMPLES section for information on setting this variable.
NOTES
[Tru64 UNIX] With Tru64 UNIX Version 4.0 the Korn shell, /usr/bin/ksh is the same as the POSIX shell /usr/bin/posix/sh.
RESTRICTIONS
[Tru64 UNIX] The file /etc/shells must include entries for both the POSIX shell /usr/bin/posix/sh and the Bourne shell, /usr/bin/sh. If
this file is incorrect, see your system administrator.
EXAMPLES
Using the Bourne, Korn, or POSIX shell, to set the variable BIN_SH to use the POSIX/ XCU5.0compliant shell, enter: BIN_SH=xpg4 export
BIN_SH Using the Bourne, Korn, or POSIX shell, to set the variable BIN_SH to use the SVR4 compliant shell, enter: BIN_SH=svr4 export BIN_SH
Using the Bourne, Korn, or POSIX shell, to unset the variable BIN_SH, enter: unset BIN_SH Using the C/ shell, to set the variable BIN_SH to
use the POSIX/XCU5.0 compliant shell, enter: setenv BIN_SH xpg4 Using the C/ shell, to set the variable BIN_SH to use the SVR4 compliant
shell, enter: setenv BIN_SH svr4 Using the C/ shell, to unset the variable BIN_SH, enter: unsetenv BIN_SH
FILES
User profile. Contains user information, including the login shell name. Contains the names of available and permitted shells.
SEE ALSO
Commands: csh(1), ksh(1), Bourne shell sh(1b), POSIX shell sh(1p), passwd(1)
Files: passwd(4), shells(4)
Standards: standards(5)
sh(1)