Thank you for explaining that to me. The currently working script is as follows:
Code:
#!/bin/bash
win=no
echo "Please pick a number"
read number
while [ $win = no ]; do
if [ -z $number ]; then
echo "Please input a number"
win=no
read number
elif [[ "$number" == +([0-9]) ]]; then
echo "That is a number, Good Job!"
win=yes
elif [[ $number == +([[:alnum:]]) ]]; then
echo "That is not a number"
win=no
echo "Please input a number"
read number
fi
done
Thanks again for the help!
Last edited by vgersh99; 12-10-2018 at 12:22 PM..
Reason: Code tags, please!
hi!
i need to do a ksh script that uses a wile loop that is fed form below
while read line
do
some things
done < myfile
inside the while loop i need to read user input to ask the user what he wants to do, but "read" reads the file, and not the standard input
while read line
do
... (2 Replies)
Hello, i know how to retrieve a user input (read), and how to manage the different options (case statement).
But... could anybody show me a script that, if the user option is incorrect, don't allow to continue the excution, i.e., if the value entered is not 1 or 2, the script shows a question.
... (2 Replies)
Hello everybody!!!
I am writing my own rm command in unix.
I prompt the user to type if he wants to delete a file and then read what he typed.
But how do i check what he typed?
This is my program so far:
echo 'Delete prog1.c (y/n)?'
read yesOrNo
if yesOrNo == 'y'
then
rm prog1.c... (6 Replies)
I'm new to BASH and i'm trying to create a script which is simply put a large find and replace file. This is what I have so far
N=0
while read LINE ; do
N=$((N+1))
sed 's/'$2'/'$3'/g' $LINE > .temp
echo "Changes to file $N = $LINE"
echo 'The following changes... (5 Replies)
until
do
read -p "Invalid cars. Try againa" cars1
done
Ok i have the above code, im getting users input and if it doesnt match in the file the user has to try again untill its correct
But when i run this it gives me an error saying
./Cars.bash: line 43: (2 Replies)
Good Evening. I'm new to C. Can you please help me.
I'm creating an error checking function, user will input a string, this will check if the input is all alphabet or all letters only. If there is a digit or other special char, it will print Error then ask input from user again.
Here's my... (1 Reply)
Hi,
I need my script to check if the user enters 3 values if not 5 values to my script and alert if the input has any other number of values.
for example:
./myscript.sh 22 56 3221 - > correct
./myscript.sh 22 56 3221 45 777 -> correct
./myscript.sh 22 56 3221 45 -> incorrect
Please... (6 Replies)
I have a shell script, and its pretty much done, I decided to add a loop that ends or continues depending on user input. like "would you like to continue?" and if I hit y or yes it will run the loop again until I hit n or no and breaks out of the loop.
To be hones I didn't think I needed to add... (2 Replies)
Hi,
On my Java webpage which invokes the shell script has two checkboxes viz ...
apache
and
weblogic
apache require one parameter i.e apache home from the user while Weblogic requires three or five params from the user vi.z weblogic_home or <jdk_home, config_home & pid>, username and... (4 Replies)
How to check the user input to be valid using shell script?
The valid input is in the format like as follows.
1. It can only have r,w,x or a hyphen and nothing else.
2. ensure the r, w, x are in the correct order.
for example: rwxr-xr-x is a valid format.
Thanks (5 Replies)
Discussion started by: hyeewang
5 Replies
LEARN ABOUT BSD
curses
CURSES(3X)CURSES(3X)NAME
curses - screen functions with ``optimal'' cursor motion
SYNOPSIS
cc [ flags ] files -lcurses -ltermcap [ libraries ]
DESCRIPTION
These routines give the user a method of updating screens with reasonable optimization. They keep an image of the current screen, and the
user sets up an image of a new one. Then the refresh() tells the routines to make the current screen look like the new one. In order to
initialize the routines, the routine initscr() must be called before any of the other routines that deal with windows and screens are used.
The routine endwin() should be called before exiting.
SEE ALSO
Screen Updating and Cursor Movement Optimization: A Library Package, Ken Arnold,
ioctl(2), getenv(3), tty(4), termcap(5)AUTHOR
Ken Arnold
FUNCTIONS
addch(ch) add a character to stdscr
addstr(str) add a string to stdscr
box(win,vert,hor) draw a box around a window
cbreak() set cbreak mode
clear() clear stdscr
clearok(scr,boolf) set clear flag for scr
clrtobot() clear to bottom on stdscr
clrtoeol() clear to end of line on stdscr
delch() delete a character
deleteln() delete a line
delwin(win) delete win
echo() set echo mode
endwin() end window modes
erase() erase stdscr
flusok(win,boolf) set flush-on-refresh flag for win
getch() get a char through stdscr
getcap(name) get terminal capability name
getstr(str) get a string through stdscr
gettmode() get tty modes
getyx(win,y,x) get (y,x) co-ordinates
inch() get char at current (y,x) co-ordinates
initscr() initialize screens
insch(c) insert a char
insertln() insert a line
leaveok(win,boolf) set leave flag for win
longname(termbuf,name) get long name from termbuf
move(y,x) move to (y,x) on stdscr
mvcur(lasty,lastx,newy,newx) actually move cursor
newwin(lines,cols,begin_y,begin_x) create a new window
nl() set newline mapping
nocbreak() unset cbreak mode
noecho() unset echo mode
nonl() unset newline mapping
noraw() unset raw mode
overlay(win1,win2) overlay win1 on win2
overwrite(win1,win2) overwrite win1 on top of win2
printw(fmt,arg1,arg2,...) printf on stdscr
raw() set raw mode
refresh() make current screen look like stdscr
resetty() reset tty flags to stored value
savetty() stored current tty flags
scanw(fmt,arg1,arg2,...) scanf through stdscr
scroll(win) scroll win one line
scrollok(win,boolf) set scroll flag
setterm(name) set term variables for name
standend() end standout mode
standout() start standout mode
subwin(win,lines,cols,begin_y,begin_x) create a subwindow
touchline(win,y,sx,ex) mark line y sx through sy as changed
touchoverlap(win1,win2) mark overlap of win1 on win2 as changed
touchwin(win) "change" all of win
unctrl(ch) printable version of ch
waddch(win,ch) add char to win
waddstr(win,str) add string to win
wclear(win) clear win
wclrtobot(win) clear to bottom of win
wclrtoeol(win) clear to end of line on win
wdelch(win,c) delete char from win
wdeleteln(win) delete line from win
werase(win) erase win
wgetch(win) get a char through win
wgetstr(win,str) get a string through win
winch(win) get char at current (y,x) in win
winsch(win,c) insert char into win
winsertln(win) insert line into win
wmove(win,y,x) set current (y,x) co-ordinates on win
wprintw(win,fmt,arg1,arg2,...) printf on win
wrefresh(win) make screen look like win
wscanw(win,fmt,arg1,arg2,...) scanf through win
wstandend(win) end standout mode on win
wstandout(win) start standout mode on win
BUGS 4th Berkeley Distribution April 23, 1986 CURSES(3X)