Variable Names With Numbers


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Variable Names With Numbers
# 1  
Old 08-08-2008
Variable Names With Numbers

Hi Everyone,

I was just curious if you are allowed to begin a variable name with a number. For example, I would really like to have the variable 8DAY_AVERAGE. But my shell script only seems to allow EIGHTDAY_AVERAGE. Is there a way I can get the former to work? I am using bash. Thanks a lot!

Mike
# 2  
Old 08-08-2008
Hi.
Quote:
name A word consisting only of alphanumeric characters and under-
scores, and beginning with an alphabetic character or an under-
score. Also referred to as an identifier.
...
A parameter is an entity that stores values. It can be a name, a num-
ber, or one of the special characters listed below under Special Param-
eters. A variable is a parameter denoted by a name. A variable has a
value and zero or more attributes.

-- excerpts from man bash
The man pages are your friends ... cheers, drl
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

[Solved] How to increment and add variable length numbers to a variable in a loop?

Hi All, I have a file which has hundred of records with fixed number of fields. In each record there is set of 8 characters which represent the duration of that activity. I want to sum up the duration present in all the records for a report. The problem is the duration changes per record so I... (5 Replies)
Discussion started by: danish0909
5 Replies

2. Shell Programming and Scripting

Using awk to append incremental numbers to the end of duplicate file names.

I'm currently working on a script that extracts files from a .zip, runs an sha1sum against them and then uses awk to pre-format them into zomething more readable thusly: Z 69 89e013b0d8aa2f9a79fcec4f2d71c6a469222c07 File1 Z 69 6c3aea28ce22b495e68e022a1578204a9de908ed File2 Z 69... (5 Replies)
Discussion started by: Ethereal
5 Replies

3. Shell Programming and Scripting

[SHELL: /bin/sh] For loop using variable variable names

Simple enough problem I think, I just can't seem to get it right. The below doesn't work as intended, it's just a function defined in a much larger script: CheckValues() { for field in \ Group_ID \ Group_Title \ Rule_ID \ Rule_Severity \ ... (2 Replies)
Discussion started by: Vryali
2 Replies

4. Shell Programming and Scripting

Print numbers along with file names.

Hi All, I have some thousand files with names like 1.syl, 2.syl, 5.syl etc. These files contain one sentence each. I want to store all those sentences along with the file ID that is 1, 2, 5 with the sentences they contain. For example, 1.syl has this is a test line 2.syl has ... (3 Replies)
Discussion started by: shoaibjameel123
3 Replies

5. Shell Programming and Scripting

Shell Scripts (Renaming file names with sequential numbers)

Hi there, Firstly, I have no experience with shell scripts so would really appreciate some help. I have the following shell script that is causing some problems: moveit() { && set -x if then DOUBLE_DELIVERY=$(grep... (6 Replies)
Discussion started by: thebeno
6 Replies

6. Shell Programming and Scripting

Finding consecutive numbers in version names on a txt file

Hi all. I have a directory which contains files that can be versioned. All the files are named according to a pattern like this: TEXTSTRING1-001.EXTENSION TEXTSTRING2-001.EXTENSION TEXTSTRING3-001.EXTENSION ... TEXTSTRINGn-001.EXTENSION If a file is versioned, a file called ... (10 Replies)
Discussion started by: fox1212
10 Replies

7. UNIX for Advanced & Expert Users

How to select only those file names whose name contains only numbers

Hi Guru's, Before writing to this forum I have searched extensively on this forum about my problem. I have to write a shell script which takes out only those file names from the given directory which contains only numbers. For example, In the given directory these files are present: ... (4 Replies)
Discussion started by: spranm
4 Replies

8. UNIX for Dummies Questions & Answers

How to select only those file names whose name contains only numbers.

Hi Guru's, Before writing to this forum I have searched extensively on this forum about my problem. I have to write a shell script which takes out only those file names from the given directory which contains only numbers. For example, In the given directory these files are present: ... (0 Replies)
Discussion started by: spranm
0 Replies

9. Shell Programming and Scripting

how to remove files with only numbers as file names?

Hi all, I have a bunch of files that are named like 12543, 467249877, etc all over some directories.These files are named only with numbers, they dont have any letters or special characters in their file names. Could you please help me out and give me some command/script to remove only those... (6 Replies)
Discussion started by: praveen_indramo
6 Replies

10. Shell Programming and Scripting

Variable names

Hi I have several variables called var1, var2, var3, var4 and so on. I would like to examine the contents of the variables using a loop and a variable called num which equals a figure eg num=3 I wanted to do something like echo $var$num to display the contents of var3 (4 Replies)
Discussion started by: Bab00shka
4 Replies
Login or Register to Ask a Question