Visit Our UNIX and Linux User Community


_getopt function


 
Thread Tools Search this Thread
Top Forums Programming _getopt function
# 1  
Old 04-08-2002
_getopt function

sir
can u tell me the windows/dos command in place of get_opt function..thanks in advance
Nikunj
# 2  
Old 04-08-2002
nnikunji,
Windows/Dos commands? I think you are mistaken , this is a Unix Q&A Forum. How you want a windows command ?

This is a small definition of get_ops() function on Unix C
get_opt() - get options/arguments from command line argument list. The get_opt() function parses a command line argument list argv seeking for command arguments, option characters/strings and option arguments.
An option character is known if it has been specified in the string of accepted option characters, optstring . optstring may contain the following elements: individual characters, and characters followed by a colon to indicate an option argument is to follow. For example, an option string " x &qout; recognizes an option " -x ", and an option string "x:" recognizes an option and argument " -x argument ". If command argument is recognized get_opt() returns NULL , and optarg points to an argument. If known option character is recognized get_opt() returns option character itself and optarg points to an option argument, if it is anticipated. If current option character is unknown or if current option character demands argument but there is no anticipated argument or if option character is equal to '?' then return value is '?'. When the argument list is exhausted the get_opt() function returns an EOF . It's possible to check for long option by specifying correspondence between option character and option string optname using set_long_opt().

Previous Thread | Next Thread
Test Your Knowledge in Computers #189
Difficulty: Easy
The boolean data type in Python is immutable.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Function - Make your function return an exit status

Hi All, Good Day, seeking for your assistance on how to not perform my 2nd, 3rd,4th etc.. function if my 1st function is in else condition. #Body function1() { if then echo "exist" else echo "not exist" } #if not exist in function1 my all other function will not proceed.... (4 Replies)
Discussion started by: meister29
4 Replies

2. Shell Programming and Scripting

Need help on awk for printing the function name inside each function

Hi, I am having script which contains many functions. Need to print each function name at the starting of the function. Like below, functionname() { echo "functionname" commands.... } I've tried like below, func=`grep "()" scriptname | cut -d "(" -f1` for i in $func do nawk -v... (4 Replies)
Discussion started by: Sumanthsv
4 Replies

3. Shell Programming and Scripting

Will files, creaetd in one function of the same script will be recognized in another function?

Dear All. I have a script, which process files one by one. In the script I have two functions. one sftp files to different server the other from existing file create file with different name. My question is: Will sftp function recognize files names , which are created in another... (1 Reply)
Discussion started by: digioleg54
1 Replies

4. Shell Programming and Scripting

Help to Modify File Name in each function before calling another function.

I have a script which does gunzip, zip and untar. Input to the script is file name and file directory (where file is located) I am reading the input parameters as follows: FILENAME=$1 FILEDIR=$2 I have created 3 functions that are as follows: 1) gunzip file 2) unzip file... (2 Replies)
Discussion started by: pinnacle
2 Replies

5. Programming

How to step in one function after the function be executed in gdb?

In gdb, I can call one function with command "call", but how can I step in the function? I don't want to restart the program, but the function had been executed, gdb will execute next statement, and I don't know how to recall the function. (4 Replies)
Discussion started by: 915086731
4 Replies

6. Shell Programming and Scripting

After exit from function it should not call other function

Below is my script that is function properly per my conditions but I am facing one problem here that is when one function fails then Iy should not check other functions but it calls the other function too So anyone can help me how could i achieve this? iNOUT i AM GIVING TO THE... (1 Reply)
Discussion started by: rohit22hamirpur
1 Replies

7. Shell Programming and Scripting

SHELL SCRIPT Function Calling Another Function Please Help...

This is my function which is creating three variables based on counter & writing these variable to database by calling another function writeRecord but only one record is getting wrote in DB.... Please advise ASAP...:confused: function InsertFtg { FTGSTR="" echo "Saurabh is GREAT $#" let... (2 Replies)
Discussion started by: omkar.sonawane
2 Replies

8. Programming

Function pointer to inline function ?

Hi. Problem: I have to parse the payload of a packet. The payload could be in Big Endian Format (network byte order) or little. That depends on a flag present in the header of the packet. Solution: A horrible solution could be to check for that flag everytime I have to read a field in the... (11 Replies)
Discussion started by: emitrax
11 Replies

9. Shell Programming and Scripting

Return a value from called function to the calling function

I have two scripts. script1.sh looks -------------------------------- #!/bin/bash display() { echo "Welcome to Unix" } display ----------------------------- Script2.sh #!/bin/bash sh script1.sh //simply calling script1.sh ------------------------------ (1 Reply)
Discussion started by: mvictorvijayan
1 Replies

10. Shell Programming and Scripting

Passing global variable to a function which is called by another function

Hi , I have three funcions f1, f2 and f3 . f1 calls f2 and f2 calls f3 . I have a global variable "period" which i want to pass to f3 . Can i pass the variable directly in the definition of f3 ? Pls help . sars (4 Replies)
Discussion started by: sars
4 Replies

Featured Tech Videos