Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

help using if/and/or statement

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting help using if/and/or statement
# 1  
Old 02-17-2012
help using if/and/or statement
greetings,

the goal below is to test the supplied options/arguments for validity. if the matlab option is not supplied with the additional option of a file then exit. however if matlab IS supplied with its companion option of a file OR batch is the only option then continue on. it's clear the -a -n thing isn't working correctly. hopefully i've explained it well enough and the code below at least conveys my intention. any insight would be appreciated.

Code:
if [ "$CODE" = "comsol" ]; then
        if [ "$PASS_OPTS" = " matlab" ] && [ -z "$PASS_OPTS2" ]; then
                Fatal "You must use --opts matlab --opts2 filename.m"
        else
                if [ "$PASS_OPTS" = " matlab" -a -n "PASS_OPTS2" ] || [ "$PASS_OPTS" = " batch" ]; then
                       case "$CPUS" in
                       ( 12|24|36 )
                       export AMT=$(expr $CPUS / 12)
                       RUSAGE="rusage[lic_req_comsol=1:duration=15]"
               ;;
                       ( * )
                       echo ""
                       Fatal "You must either specify 12, 24 or 36 cpus for code Comsol"
               ;;
                       esac
                fi
        fi
fi

# 2  
Old 02-17-2012
MySQL
Hi,

Instead of
Quote:
if [ "$PASS_OPTS" = " matlab" -a -n "PASS_OPTS2" ] || [ "$PASS_OPTS" = " batch" ]; then
try the below statement.
Quote:
if [ \( \( "$PASS_OPTS" = " matlab" \) -a \( -n "PASS_OPTS2" \) \) -o \( "$PASS_OPTS" = "batch" \) ]; then
Thanks,
Kalai
This User Gave Thanks to kalpeer For This Post:
crimso
# 3  
Old 02-17-2012
greetings kalai,
sorry but that didn't work as RUSAGE didn't get set.
joe.

---------- Post updated at 09:28 AM ---------- Previous update was at 08:31 AM ----------

greetings kalai,
sorry, you had it right all along, a typo on my part was the goof! thanx for your help!!
# 4  
Old 02-17-2012
You might want to read up on the getopts command, which can do argument processing for you in a consistent manner. Here's one sample of many I just found: Illustrated UNIX System V/BSD: Module 59 getopts (ksh)
If you ask the Google there are lots of other examples. Why reinvent the wheel when there is a facility built into the shell to do it already?

Gary
This User Gave Thanks to gary_w For This Post:
crimso
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Convert Update statement into Insert statement in UNIX using awk, sed....

Hi folks, I have a scenario to convert the update statements into insert statements using shell script (awk, sed...) or in database using regex. I have a bunch of update statements with all columns in a file which I need to convert into insert statements. UPDATE TABLE_A SET COL1=1 WHERE... (0 Replies)
Discussion started by: dev123
0 Replies

2. Shell Programming and Scripting

If statement

Hi, I have this code here. Its suppose to do something when certain condition is met, I'm pretty sure at least one of the condition will be meet somewhere in the loop but it always go to else part of the script. Is something wrong on this script? age_list=`tar -tvf /home/dir/$tarfile... (4 Replies)
Discussion started by: erin00
4 Replies

3. Shell Programming and Scripting

Statement

${PFILE}.backupfile Please tell me what the above statement means? (1 Reply)
Discussion started by: lg123
1 Replies

4. Shell Programming and Scripting

If statement help

I'm trying to create a script that would allow me to identify the sucessful removal of a file. Here's what i put together so far, let me know if it's correct or not. FILE_NAME="cactus.dat" FILE_FIND='find / -name $FILE_NAME' if ;then echo "cactus.dat was not removed successfully" ... (3 Replies)
Discussion started by: sdpinoy
3 Replies

5. UNIX for Dummies Questions & Answers

If statement (yes or no)

I have the program: #!/bin/ksh echo Please enter yes or no read n typeset -l n if ] then echo My name exit else echo delete my name fi Question: How can I make the program accept only the word "yes" or "no" otherwise it will ask the user to re-enter? Thanks! (7 Replies)
Discussion started by: bobo
7 Replies

6. Shell Programming and Scripting

How is use sselect statement o/p in insert statement.

Hi All, I am using Unix ksh script. I need to insert values to a table using the o/p from a slelect statement. Can anybody Help! My script looks like tihs. ---`sqlplus -s username/password@SID << EOF set heading off set feedback off set pages 0 insert into ${TB_NAME}_D... (2 Replies)
Discussion started by: nkosaraju
2 Replies

7. Shell Programming and Scripting

If statement - How to write a null statement

In my ksh script, if the conditions of a if statement are true, then do nothing; otherwise, execute some commands. How do I write the "do nothing" statement in the following example? Example: if (( "$x"="1" && "$y"="a" && "$z"="happy" )) then do nothing else command command fi... (3 Replies)
Discussion started by: april
3 Replies

8. Shell Programming and Scripting

statement

I want to write a program that would convert yard to feet and feet to yard. i.e 1 yard = 3 * feet Echo "enter a" read a expr a *3 The trick is that I want to give the user some options. After the conversion from yard to feet is done, I want to ask the user whether or not he/she wants to... (10 Replies)
Discussion started by: Ernst
10 Replies

9. Shell Programming and Scripting

if statement

can someone please tell me what is wrong with the below. i'm trying to get a script to run if the content of a variable is either small letter y or capital letter Y. if then whatever fi (4 Replies)
Discussion started by: Terrible
4 Replies

10. Shell Programming and Scripting

If statement

Hi, I have a statement in shell script which i am writing below: if ] then ..... What is the meaning of -a option in files, meaning of the statement in the if condition ] means. Thanks (3 Replies)
Discussion started by: dreams5617
3 Replies
Login or Register to Ask a Question