04-07-2002
Help me with this Shell Program
Now, am in a very tight situation here. I really dont expect anyone to understand but please, try your best.
am trying to right a program that goes back to the previous entry to correct a mistake.
heres what am trying to do. i write a program like this
Name : James Holgston
Address : -
Phone :
now, after the user enters a name for the name field and the cursor is now in the address field, how do I make the cursor go back to the name field and erase the previous entry to allow the user to enter a new entry. I was basically able to return the cursor the the previous field but I couldn't figure out how to clear the previous field. all i was able to do was bring the cursor up to the first letter of the previous field but was not able to delete the entire entry automatically.
say, after I entered James Holgston and now the cursor is blinking on the Address field, how do I go back to the field where James Holgston is and delete that name upon the arrival of the cursor.
is there any hack I can add to my script??
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hellow every body
I am trying to write a very simple script in an executable file as following
if ($?PWD) then
echo "OK"
else
echo "No"
endif
but I am getting error during execution in c shell as
synthax error at line 4 , unexpected end of file
Please advise (2 Replies)
Discussion started by: Reza Nazarian
2 Replies
2. Programming
I am programming the following simple shell program. It works for the most part, things like 'ls' and 'ps' work just fine. However when I add options, (example, ls -l) it does not execute the command. Also, I've been trying to add an "exit" command, so that I don't have to use the iterrupt; but... (3 Replies)
Discussion started by: TexasGuy
3 Replies
3. Shell Programming and Scripting
How to write a shell script which takes 3 strings as positional parameters,first and second are file names and third is a directory.if the two files exist in `pwd` and they contain a specific pattern and their size is greater than 32 bytes,moves these files into directory? (1 Reply)
Discussion started by: rameshparsa
1 Replies
4. Shell Programming and Scripting
hello,
i have problem in awk filter in shell to concatenate two string
plz send me a solution as soon as possible
from
jyoti ardeshana (4 Replies)
Discussion started by: jyotiardeshana
4 Replies
5. Shell Programming and Scripting
in the beginners book i have it gives an exercise to try. saying to make a script that examines the time. it should keep examining every second or so and say some sort of message. Can anyone help me get going.
Thanks (3 Replies)
Discussion started by: bebop1111116
3 Replies
6. Shell Programming and Scripting
I want to print the value of variables a1, a2, a3 in for loop in the following program:
a1=this
a2=is
a3=printed
for((i=1;i<4;i++))
do
var=a$i
#w=`echo $var`
e=${var}
echo $e
done
But actually I get a1,a2,a3 as the output not the "this is printed"
So the main question is if I... (3 Replies)
Discussion started by: adgarg
3 Replies
7. Shell Programming and Scripting
Iam having file 1 as
wc -l file1 is 8
QWEERTYUU|7927836357398398398913 yuyuyu uyiuyuyuyuy yuiyuiyuyuyy
FDHGFSHAJK|1476887897877777777771 iopwiiwpoi e
.
.
.
.
I Need to read the abouve line in file1
so iam using the command as
tail -n 8... (8 Replies)
Discussion started by: nivas
8 Replies
8. Shell Programming and Scripting
Hi all,
I am trying to get a file from an ftp server and i have the list of files which needs to be get from the ftp server.
grep unix_prg*.* log.txt > log1.txt
log1.txt (which has the list of files)
06-29-09 00:00AM 3550258 unix_prg090629
06-28-09 07:00PM ... (7 Replies)
Discussion started by: raghav1982
7 Replies
9. Homework & Coursework Questions
Hi all,
I have an assignment from school to write a shell program in linux. the idea is to exercise fork() and execv() functions.. the shell program is supposed to be the master and every command that the user prints will run in a new process. we also need to try running the command in every... (1 Reply)
Discussion started by: r3vive
1 Replies
10. Homework & Coursework Questions
1. I've have to write a shell program that accepts Ctrl+T (in linux os in c language) and should print out the current time and date to the screen. I've written the following code but i've to type ^T individual rather than pressing ctrl+T(^T) to get the output. :
2. How do i make the shell... (2 Replies)
Discussion started by: zorro_phu
2 Replies
LEARN ABOUT REDHAT
form_driver
form_driver(3X) form_driver(3X)
NAME
form_driver - command-processing loop of the form system
SYNOPSIS
#include <form.h>
int form_driver(FORM *form, int c);
DESCRIPTION
Once a form has been posted (displayed), you should funnel input events to it through form_driver. This routine has two major input cases;
either the input is a form navigation request or it's a printable ASCII character. The form driver requests are as follows:
REQ_NEXT_PAGE
Move to the next page.
REQ_PREV_PAGE
Move to the previous page.
REQ_FIRST_PAGE
Move to the first page.
REQ_LAST_PAGE
Move to the last field.
REQ_NEXT_FIELD
Move to the next field.
REQ_PREV_FIELD
Move to the previous field.
REQ_FIRST_FIELD
Move to the first field.
REQ_LAST_FIELD
Move to the last field.
REQ_SNEXT_FIELD
Move to the sorted next field.
REQ_SPREV_FIELD
Move to the sorted previous field.
REQ_SFIRST_FIELD
Move to the sorted first field.
REQ_SLAST_FIELD
Move to the sorted last field.
REQ_LEFT_FIELD
Move left to a field.
REQ_RIGHT_FIELD
Move right to a field.
REQ_UP_FIELD
Move up to a field.
REQ_DOWN_FIELD
Move down to a field.
REQ_NEXT_CHAR
Move to the next char.
REQ_PREV_CHAR
Move to the previous char.
REQ_NEXT_LINE
Move to the next line.
REQ_PREV_LINE
Move to the previous line.
REQ_NEXT_WORD
Move to the next word.
REQ_PREV_WORD
Move to the previous word.
REQ_BEG_FIELD
Move to the beginning of the field.
REQ_END_FIELD
Move to the end of the field.
REQ_BEG_LINE
Move to the beginning of the line.
REQ_END_LINE
Move to the end of the line.
REQ_LEFT_CHAR
Move left in the field.
REQ_RIGHT_CHAR
Move right in the field.
REQ_UP_CHAR
Move up in the field.
REQ_DOWN_CHAR
Move down in the field.
REQ_NEW_LINE
Insert or overlay a new line.
REQ_INS_CHAR
Insert a blank at the cursor.
REQ_INS_LINE
Insert a blank line at the cursor.
REQ_DEL_CHAR
Delete character at the cursor.
REQ_DEL_PREV
Delete character before the cursor.
REQ_DEL_LINE
Delete line at the cursor.
REQ_DEL_WORD
Delete blank-delimited word at the cursor.
REQ_CLR_EOL
Clear to end of line from cursor.
REQ_CLR_EOF
Clear to end of field from cursor.
REQ_CLR_FIELD
Clear the entire field.
REQ_OVL_MODE
Enter overlay mode.
REQ_INS_MODE
Enter insert mode.
REQ_SCR_FLINE
Scroll the field forward a line.
REQ_SCR_BLINE
Scroll the field backward a line.
REQ_SCR_FPAGE
Scroll the field forward a page.
REQ_SCR_BPAGE
Scroll the field backward a page.
REQ_SCR_FHPAGE
Scroll the field forward half a page.
REQ_SCR_BHPAGE
Scroll the field backward half a page.
REQ_SCR_FCHAR
Scroll the field forward a character.
REQ_SCR_BCHAR
Scroll the field backward a character.
REQ_SCR_HFLINE
Horizontal scroll the field forward a line.
REQ_SCR_HBLINE
Horizontal scroll the field backward a line.
REQ_SCR_HFHALF
Horizontal scroll the field forward half a line.
REQ_SCR_HBHALF
Horizontal scroll the field backward half a line.
REQ_VALIDATION
Validate field.
REQ_NEXT_CHOICE
Display next field choice.
REQ_PREV_CHOICE
Display previous field choice.
If the second argument is a printable ASCII character, the driver places it in the current position in the current field. If it is one of
the forms requests listed above, that request is executed.
If the second argument is neither printable ASCII nor one of the above pre-defined form requests, the driver assumes it is an application-
specific command and returns E_UNKNOWN_COMMAND. Application-defined commands should be defined relative to MAX_COMMAND, the maximum value
of these pre-defined requests.
RETURN VALUE
form_driver return one of the following error codes:
E_OK The routine succeeded.
E_SYSTEM_ERROR
System error occurred (see errno).
E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
E_BAD_STATE
Routine was called from an initialization or termination function.
E_NOT_POSTED
The form has not been posted.
E_UNKNOWN_COMMAND
The form driver code saw an unknown request code.
E_INVALID_FIELD
Contents of field is invalid.
E_REQUEST_DENIED
The form driver could not process the request.
SEE ALSO
curses(3X), form(3X).
NOTES
The header file <form.h> automatically includes the header files <curses.h>.
PORTABILITY
These routines emulate the System V forms library. They were not supported on Version 7 or BSD versions.
AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S. Raymond.
form_driver(3X)