Sponsored Content
Homework and Emergencies Homework & Coursework Questions Understanding Functions, sh, and arguments Post 302472145 by lee.n.doan on Tuesday 16th of November 2010 11:29:40 AM
Old 11-16-2010
Thanks, that really helped. I had to modify it to add $3 to make it have the "else" part, but then it worked! Also, didn't know that you shouldn't have 'done' at the end too, but I just took that out.

Thanks for your help, I really appreciate it.

Quick question though: what does the -eq in the

{ if [ $# -eq 2 ]; then

mean? I know that we want to see if there are any more than 2 arguments. What does -eq do for that?

Last edited by lee.n.doan; 11-16-2010 at 12:31 PM.. Reason: wanted to add a question
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Regarding functions

Hi, I have a function or script like this. show() { echo "Hi" } | tee -a log show This creates a logfile and prints Hi in it. Now when I try to do the same for sql like this: show() { sqlplus -s scott/tiger<<! select * from details; ! } | tee -a log show Then it gives me a... (2 Replies)
Discussion started by: sendhilmani
2 Replies

2. Shell Programming and Scripting

Use of functions

Hi my shell is tcsh can I have functions in my shell scripting? Is the below shell script correct. Can I have two functions and call one of them as required. ---------- echo "functions" f1 f1 () { echo "hello" } f2 () (1 Reply)
Discussion started by: amitrajvarma
1 Replies

3. Shell Programming and Scripting

Need a little help with functions

I'm semi new to unix/linux and am trying to convert a program I wrote in C++ to a bash script. It's a program that prints Fibonacci's series. I have found scripts that will do it, but I'm trying persistently to get this one to work. The problem occurs when I try to return a value from the function.... (3 Replies)
Discussion started by: Glowworm
3 Replies

4. Shell Programming and Scripting

bash functions arguments

This script is called fuu; #!/bin/bash speak() { case $1 in 1)echo one ;; 2)echo two ;; 3)echo three ;; esac } speak exit 0 when i run fuu 2 i expect "two" like... (2 Replies)
Discussion started by: Tártaro
2 Replies

5. Shell Programming and Scripting

grep with two arguments to arguments to surch for

Hello, is it possible to give grep two documents to surche for? like grep "test" /home/one.txt AND /home/two.txt ? thanks (1 Reply)
Discussion started by: Cybertron
1 Replies

6. UNIX for Dummies Questions & Answers

== vs -eq and functions

Hey I have a question.... what is the difference between using == vs -eq when testing in WHILE loops. I use the following test that only worked with == signs.... if why do i need == and not -eq? 2. I need to re-use some code in a couple places in this script. is functions my best... (5 Replies)
Discussion started by: danieldcc
5 Replies

7. Homework & Coursework Questions

trouble understanding file option and command line arguments

Hi, I am creating a program with the C language that simulates the WC command in Unix. My program needs to count lines, bytes and words. I have not added the code to count bytes and words yet. I am having trouble understanding what the file option/flag '-' does. I can not visualize how it moves... (1 Reply)
Discussion started by: heywoodfloyd
1 Replies

8. Programming

Functions

Hi All, Can any one help me. I am calling in a function2 with string as parameter from function1, the function1 gives 3 values. how i get the 3 values from funciton2 to function1. i have to give a return or something. thanks in advance. (2 Replies)
Discussion started by: uday.sena.m
2 Replies

9. Shell Programming and Scripting

How to execute functions or initiate functions as command line parameters for below requirement?

I have 7 functions those need to be executed as command line inputs, I tried with below code it’s not executing function. If I run the ./script 2 then fun2 should execute , how to initiate that function I tried case and if else also, how to initiate function from command line if then... (8 Replies)
Discussion started by: saku
8 Replies

10. Programming

Understanding C++ template partial specialization with pointer datatype arguments

When I compile the below code, I am getting error as template<typename T> T AddFun(T i, T j) { return i + j; } template<> T* AddFun<T*>(T* i, T* j) { return new T(*i + *j); } int main() { int n = AddFun<int>(10, 20); int i = 10, j = 20; int* p = AddFun<int*>(&i,... (1 Reply)
Discussion started by: royalibrahim
1 Replies
SCRIPT(1)						    BSD General Commands Manual 						 SCRIPT(1)

NAME
script -- make typescript of terminal session SYNOPSIS
script [-adfpqr] [-c command] [file] DESCRIPTION
script makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1). If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript. Option: -a Append the output to file or typescript, retaining the prior contents. -c command Run the named command instead of the shell. Useful for capturing the output of a program that behaves differently when associated with a tty. -d When playing back a session with the -p flag, don't sleep between records when playing back a timestamped session. -f Flush output after each write. This is useful for watching the script output in real time. -p Play back a session recorded with the -r flag in real time. -q Be quiet, and don't output started and ended lines. -r Record a session with input, output, and timestamping. The script ends when the forked shell exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)). Certain interactive commands, such as vi(1), create garbage in the typescript file. script works best with commands that do not manipulate the screen, the results are meant to emulate a hardcopy terminal. ENVIRONMENT
The following environment variable is used by script: SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
csh(1) (for the history mechanism). HISTORY
The script command appeared in 3.0BSD. BUGS
script places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. BSD
October 17, 2009 BSD
All times are GMT -4. The time now is 01:58 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy