evaluating for a number


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers evaluating for a number
# 1  
Old 11-09-2003
evaluating for a number

I apologize for the simple question but can someone please help me with how to evaluate a number?

I will be reading in a file and if a number is >= 100000000, I will do something, if not, I will exit the if statement.

Thanks in advance
# 2  
Old 11-09-2003
the syntax is different from shell to shell and language to language.
c syntax would look like:

Code:
if (x >= 100000000)
{ 
cout>>" do something ";
}

bash would look like:

Code:
if [ $somevar -ge whatever  ]
then
do something


oh yah, in bash you can also do it like:

Code:
if (( "$somevar" >= "$somethingelse" ))
then
the rest 

 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Problem evaluating condition

First, given this bit of code (line numbers included for reference: 59 get_all_db () { 60 #echo getting all db 61 dblist=`egrep -i "product/12" /etc/oratab |grep -v "listener"|\ 62 awk -F\: '{print $1}'|sort` 63 echo list is $dblist 64 echo 65 echo 66 echo "INSTANCE_NAME ... (15 Replies)
Discussion started by: edstevens
15 Replies

2. UNIX for Dummies Questions & Answers

Comparing and Evaluating

Hi Guys, Good day ULF :) I hope you can help me again with my problem. I have a file which looks like this: Command was launched from partition 0. ------------------------------------------------ Executing command in server server3 Dec 18 21:31:12 AHM04 nseventmgr: EVENT-SET:... (4 Replies)
Discussion started by: rymnd_12345
4 Replies

3. Shell Programming and Scripting

Evaluating a variable

Does anyone know of a way to force a variable name held in another variable to return the value of the first variable? Best if I give an example, that does not work: /usr/local/bin >cat mike.sh NUM1ref=16 NUM2ref=32 echo "==============" for VAR in NUM1 NUM2 do XXXX=${VAR}ref echo $XXXX... (4 Replies)
Discussion started by: mikejordan
4 Replies

4. Shell Programming and Scripting

if condition not evaluating as expected

Hi all, Thanks in advance for your time. I have a data file like this: 1 7.465753425 2 8.980821918 1 1.717808219 1 6.550684932 0 5.432876712 I wish to write a bash script to check both columns and output a 1 if col1==1 AND col2<3. Otherwise I want to output a 0. In the above... (5 Replies)
Discussion started by: jem8271
5 Replies

5. Shell Programming and Scripting

$$# is evaluating to 1 when no value

I have the following in my makefile: RESULT=`../${TOOLS_ROOT_PATH}/ext_tools.sh 11`; \ set $$RESULT > tMp; \ rm tMp; \ if ; then \ echo copying external-local tool: $< \($$*\); \ mkdir -p ${EXTERNAL_LOCAL_BIN_DIR}/$<; \ cp -f... (4 Replies)
Discussion started by: jake_ryan
4 Replies

6. Shell Programming and Scripting

K Shell evaluating value to a variable

Hi, I have the following requirement. V="First" R="V" echo $$R The output should be First. How do i achieve this. how do we evaluate the $R and evaluate it to $V as $R contains V and $V is First. Thanks Vijay (2 Replies)
Discussion started by: vijaykrc
2 Replies

7. UNIX for Dummies Questions & Answers

evaluating date +%m

how do i evaluate the value of date if ( $(date +%m) > 8 ) then FY_STAMP=FY$(echo $(($(date +%Y) + 1)) | cut -c3-4) else FY_STAMP=FY$(date +%y) fi i want this to make the FY_STAMP increment by 1 if the month is september and up. but cant seem to make it work (3 Replies)
Discussion started by: rsf01
3 Replies

8. Shell Programming and Scripting

* character evaluating too soon - Help!

I have a user defined configuration file, which could contain the following type of entries: directory_001=/a/directory/structure pattern_001=fred* pattern_002=* I have a script which reads the file generically which will loop round loop 1 genvar=”directory” iteration=”001” ... (11 Replies)
Discussion started by: Bab00shka
11 Replies

9. UNIX for Dummies Questions & Answers

evaluating params

Hi all, I ve a script like.... TBL=employee sql=`cat abhi.sql` \\ abhi.sql contains ------- select a from $TBL echo $TBL echo $sql SQL=`echo $sql` echo $SQL now i want SQL as select a from employee and as select a from $TBL How can I achieve this? Help appriciated (3 Replies)
Discussion started by: abzi
3 Replies

10. UNIX for Dummies Questions & Answers

evaluating variables

Hi I have a script in which I have several variables var1 var2 var3 var4 etc...... and field1 field2 field3 field4 etc....... The script similar to this: (6 Replies)
Discussion started by: Bab00shka
6 Replies
Login or Register to Ask a Question