Visit Our UNIX and Linux User Community


function


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers function
# 1  
Old 01-21-2002
Question function

The shell script below (test.cmd) gives me the error 'test.cmd: function: not found' However if I use it like function_name() { code } it works fine. Problem is that i am studying the system code and its using it like function function_name { code }

Can anybody guide me on how to use function function_name { code } in shell scripts.
Code:
#ParseRowcount()
function ParseRowcount
{

echo "entered ParseRowcount"
VALUES=$1
echo $VALUES
TOTAL=0
for V in $VALUES
do
        TOTAL=`expr $TOTAL + 1 `
        echo "entered loop"
done

}

#ParseLog()
function ParseLog
{

echo "entered ParseLog"
ROWS_LOADED=`grep "successfully" $1 | cut -d"R" -f1`
echo $ROWS_LOADED
ParseRowcount "$ROWS_LOADED"; ROWS_LOADED=$TOTAL
echo "Rows loaded................${ROWS_LOADED}"

}

ParseLog ./test1.txt

added code tags for readability --oombera

Last edited by oombera; 02-18-2004 at 12:10 PM..
# 2  
Old 01-21-2002
Re: function

Quote:
function ParseRowcount
imho, should be written as:

ParseRowcount(){
...
}

note the inclusion of bracket and omission of "function" word.
# 3  
Old 01-21-2002
function

dear kanang,
thanks for ur response . i know it works when used like function_name () { code }, but since system code which i'm going thro' its coded like function function_name { code }. So i would like to know how does it work in this case.
# 4  
Old 01-22-2002
The syntax:
Code:
function some_function
{
[...]
}

is not always portable. I know the korn shell can use this syntax, but many shells do not. The POSIX standard that should work with any reasonably new shell would be to use the syntax:
Code:
some_function () {
[...]
}

Hope that clears this up...
 

Previous Thread | Next Thread
Test Your Knowledge in Computers #420
Difficulty: Medium
JavaScript supports much of the structured programming syntax from C (e.g., if statements, while loops, switch statements, do while loops, etc.).
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

Passing variable value in a function to be used by another function

Hello All, I would like to ask help from you on how to pass variable value from a function that has been called inside the function. I have created below and put the variables in " ". Is there another way I can do this? Thank you in advance. readtasklist() { while read -r mod ver... (1 Reply)
Discussion started by: aderamos12
1 Replies

5. 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

6. 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

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