C shells

[guido campos]

Hi,
I just arribe to c shell programming! Could you please help me with the following exercises or where find solutions in cshell:

1.- Write a script that would display the time when run.

2.- Write a script that would wait 5 seconds, then display the time, but 5 seconds late. Hint: use the "sleep" command.

3.- Write a script that will take a person's name as a parameter to the program name. The script should greet that person, as Good Day name_entered, How are you today?

4.- Write a script that will prompt the user for a name. That same name will then be displayed in the same format as the previous exercise.

5.- Write a script that will return the number of parameters on the command line.

6.- Write a series of scripts that will count the number of parameters on the command line, first using the for statement, then the while and finally the until statement. (Three scripts).

7.- Write a script that will echo the third parameter, but only if it is present.
Given a file of numbers (one per line), write a script that will find the lowest and highest number.

8.- Write a script that would recognize if a word entered from the keyboard started with an upper or lower case character or a digit. Use the "case" statement.
The script would then output the word, followed by "upper case", "lower case", "digit", or "not upper, lower, or digit".

9.- Write a script that would first verify if file "myfile" exists. If if does not, create it, then ask the user for confirmation to erase it...


10.- Write a program that will calculate the amount of disk space your directory is using on the system.
Hint: the program could use both the du and awk commands.

11.- Write a program that will list the files you have in the current directory, followed by the directories. The output should have the form:
Files:
------
filenames

Directories:
------------
directories

12.- Write a program to verify how many users are logged on to the system.

13.- Write a program that will take an undetermined list of parameters, and reverse them.

Thanks in advance!

Guido

[Motoma]

I would love to help, but I need you to read our policy on homework questions first.
After doing that, please let us know what you have done so far, and what you are having problems with.

[guido campos]

I would love to help, but I need you to read our policy on homework questions first.
After doing that, please let us know what you have done so far, and what you are having problems with.

Ok,
So can you help me with this:
"Write a script that would recognize if a word entered from the keyboard started with an upper or lower case character or a digit. Use the "case" statement.
The script would then output the word, followed by "upper case", "lower case", "digit", or "not upper, lower, or digit".
I suspect i have to use:
set fname = `echo $i |tr "[A-Z]" "[a-z]" `
or
foreach fn ( *.txt )
mv $fn `echo $fn | gawk '{print tolower($0)}'`
end
Or maybe

ls *.txt | gawk '{system("mv " $0 " " tolower($0) )}'

Thanks
Guido

[ghostdog74]

Ok,
So can you help me with this:
"Write a script that would recognize if a word entered from the keyboard started with an upper or lower case character or a digit. Use the "case" statement.
The script would then output the word, followed by "upper case", "lower case", "digit", or "not upper, lower, or digit".
I suspect i have to use:
set fname = `echo $i |tr "[A-Z]" "[a-z]" `
or
foreach fn ( *.txt )
mv $fn `echo $fn | gawk '{print tolower($0)}'`
end
Or maybe

ls *.txt | gawk '{system("mv " $0 " " tolower($0) )}'

Thanks
Guido

your homework states to use the case statement. See here for examples

[Motoma]

Ok,
So can you help me with this:
"Write a script that would recognize if a word entered from the keyboard started with an upper or lower case character or a digit. Use the "case" statement.
The script would then output the word, followed by "upper case", "lower case", "digit", or "not upper, lower, or digit".
I suspect i have to use:
set fname = `echo $i |tr "[A-Z]" "[a-z]" `
or
foreach fn ( *.txt )
mv $fn `echo $fn | gawk '{print tolower($0)}'`
end
Or maybe

ls *.txt | gawk '{system("mv " $0 " " tolower($0) )}'

Thanks
Guido

Okay, do any of those give you what you are looking for? I would suggest you take a look at the man pages for the tools you are calling.