program errorlevel


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting program errorlevel
# 1  
Old 06-18-2004
Data program errorlevel

I am trying to write a shell script that will unzip some files automatically. I read using the man command the various errorlevel numbers the unzip program will exit with depending on what has happened. What I want to know is - how can I use an if or case statement to see what this errorlevel is. I know you can do this in dos, so how is it done in unix - is it in $errorlevel or something?
Thanks in advance
JP
# 2  
Old 06-18-2004
You want the exit code which is available as $? And there always will be some $? after a command. If the command worked, it is zero.
# 3  
Old 06-18-2004
Computer Thanks

Thanks Perderabo!
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl program get a response before the program quits

I created a program, so a kid can practice there math on it. It dispenses varies math problems and the kid must input an answer. I also want it to grade the work they have done, but I can't find the best place for it to print out the grade. I have: if ( $response =~ m/^/ ) { $user_wants_to_quit... (1 Reply)
Discussion started by: germany1517
1 Replies

2. Shell Programming and Scripting

An md5sum "Errorlevel" via Perl?

Greetings! Consider the following snippet:my $sumInfo = `md5sum test.txt --quiet -c checkFile`This works well enough provided that "checkFile" exists; and that it's formatted in accord with md5sum's conventions. However, I'm wanting to run md5sum to do some automated file verification work,... (3 Replies)
Discussion started by: LinQ
3 Replies

3. Homework & Coursework Questions

Calling compiled C program with Perl program

Long story short: I'm working inside of a Unix SSH under a bash shell. I have to code a C program that generates a random number. Then I have to call the compiled C program with a Perl program to run the C program 20 times and put all the generated random #s into a text file, then print that text... (1 Reply)
Discussion started by: jdkirby
1 Replies

4. Programming

Calling c program from another c program

Hi All, Probably this is a repeated question. My knowledge in this is limited and i got confused on all those materials i got in google search. We use #include <> to include a predefined library like stdio.h i saw somewhere that #include "" includes a man made module(another C program). IS... (2 Replies)
Discussion started by: jisha
2 Replies

5. Programming

Python program faster than C++ program.

I wrote a simple program that generates a random word 10,000,000 times. I wrote it in python, then in C++ and compared the two completion times. The python script was faster! Is that normal? Why would the python script be faster? I was under the impression that C++ was faster. What are some of... (2 Replies)
Discussion started by: cbreiny
2 Replies

6. UNIX for Dummies Questions & Answers

Script to open program and send/execute command in program

Hi, i want to write a script that executes a program (exec?) . this program then requires a filename as input. how do i give it this input in the script so the program will be complete run and close by the script. e.g. exec prog.exe program then asks for filename "enter filename:"... (1 Reply)
Discussion started by: tuathan
1 Replies

7. Programming

A program to trace execution of another program

Hi, I wanted to know if i can write a program using switches and signals, etc to trace execution of other unix program which calls c program internally. If yes how? If not with signals and switches then are there any other methods apart from debugging with gdb/dbx. (3 Replies)
Discussion started by: jiten_hegde
3 Replies

8. UNIX for Dummies Questions & Answers

How to write to stdin of another program (program A -> [stdin]program B)

Hi, Program A: uses pipe() I am able to read the stdout of PROGAM B (stdout got through system() command) into PROGRAM A using: * child -> dup2(fd, STDOUT_FILENO); -> execl("/path/PROGRAM B", "PROGRAM B", NULL); * parent -> char line; -> read(fd, line, 100); Question: ---------... (3 Replies)
Discussion started by: vvaidyan
3 Replies

9. Programming

How to write to stdin of another program (program A -> [stdin]program B)

Hi, Program A: uses pipe() I am able to read the stdout of PROGAM B (stdout got through system() command) into PROGRAM A using: * child -> dup2(fd, STDOUT_FILENO); -> execl("/path/PROGRAM B", "PROGRAM B", NULL); * parent -> char line; -> read(fd, line, 100); Question: ---------... (1 Reply)
Discussion started by: vvaidyan
1 Replies

10. Programming

executing a program within a program

Read the title: how do i do it? (4 Replies)
Discussion started by: Gekko
4 Replies
Login or Register to Ask a Question