There's a replacement in bash for getchar or get functions of C and C++?Those functions read the next char avaliable in the input stream.
I've tried something like:
But it is not working very well.
hey everyone!
got another problem here.
how would i use the getchar() in a prompt:
Press any key to continue
the way i did it was to define a char variable named ch
and then wrotechar ch
...
ch = getchar();
printf("Press any key to continue");
getchar():if you press enter it exits, but... (2 Replies)
I have two files:
file1:
somedata
<html>
<head>
This is sample statement
......
......
</head>
</html>
somedata
file2:
olga 81 91 B A
rene 82 92 B A
zack 83 93
Expextd Result: (2 Replies)
Hello
I have a bash script where I need to do a substring replacement like this:
variable2=${variable1/foo/bar}
However, I only want "foo" replaced if it is at the end of the line.
However, this does not work:
variable2=${variable1/foo$/bar}
as you can see I'm using the $ regex for... (2 Replies)
Hi,
I would like to read an input from keyboard using getchar. However, if no input (No Carriage return/new line none whatsoever) is given after say, 5 seconds, I would like to skip the getchar and move on. How do I do this in C. I'm using GNU compiler set.
Thanks, (5 Replies)
I wanted to make a simple program that writes chracters in a file but i didnt want to press enter .So i found the getchar which doesnt need enter.If i pass (int) getchar to putc ,in the file it shows a P character.The (int) getchar says it is equal to1734747216 so i do (int) getchar-1734747216... (4 Replies)
Hi,
What happens to process state when getchar() is called? I wrote a C code in which I call getchar() somewhere down the road. I forgot about that, I started the process, put it in bg and disowned it using "disown". Now, how do I see where that process has gone/how do kill it?
Thanks,
Amrut (1 Reply)
Im a newbie to programming language, i found tat there r these function called printf and putchar() as well as scanf and getchar(), im curious abt why do dey hav these 2 different function although dey r doing the same instruction? :confused: (13 Replies)
I have some time series data that I need to resample or downsample at some specific time intervals. The firs column is time in decimal hours. I am tryiong to resample this data every 3 minutse. So I need a data value ever 0.05. Here is the example data and as you can see, there time slot for 0.1500... (3 Replies)
Hi.
I wrote this small bash script, i want to compare second column from file1 with file2 if a pattern matches. Files are small and I am sure that pattern occurs only once. I think this can be rewritten into a awk one liner. Appreciate if someone could give me idea. Whole NR FNR confuse me :o
... (6 Replies)
Discussion started by: ctrld
6 Replies
LEARN ABOUT V7
getc
GETC(3S)GETC(3S)NAME
getc, getchar, fgetc, getw - get character or word from stream
SYNOPSIS
#include <stdio.h>
int getc(stream)
FILE *stream;
int getchar()
int fgetc(stream)
FILE *stream;
int getw(stream)
FILE *stream;
DESCRIPTION
Getc returns the next character from the named input stream.
Getchar() is identical to getc(stdin).
Fgetc behaves like getc, but is a genuine function, not a macro; it may be used to save object text.
Getw returns the next word from the named input stream. It returns the constant EOF upon end of file or error, but since that is a good
integer value, feof and ferror(3) should be used to check the success of getw. Getw assumes no special alignment in the file.
SEE ALSO fopen(3), putc(3), gets(3), scanf(3), fread(3), ungetc(3)DIAGNOSTICS
These functions return the integer constant EOF at end of file or upon read error.
A stop with message, `Reading bad file', means an attempt has been made to read from a stream that has not been opened for reading by
fopen.
BUGS
The end-of-file return from getchar is incompatible with that in UNIX editions 1-6.
Because it is implemented as a macro, getc treats a stream argument with side effects incorrectly. In particular, `getc(*f++);' doesn't
work sensibly.
GETC(3S)