Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Subtracting an Integer from a Variable Post 302204053 by robotronic on Tuesday 10th of June 2008 12:11:50 PM
Old 06-10-2008
If you only want a file count, you don't need to subtract anything. Just issue:

Code:
COUNT=`ls | wc -l`

If you want to compute calculations and you're using bash, try:

Code:
x=10
x=$((x-1))
echo $x

Otherwise, go with "expr" as said by stcroix111 Smilie
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

capturing the output of grep as integer variable

Hi, I have an expression using grep and nawk that captures the ID number of a given Unix process. It gets printed to screen but I don't know how to declare a variable to this returned value! For example, ps -ef|grep $project | grep -v grep | nawk '{print $2}' This returns my number. How... (2 Replies)
Discussion started by: babariba
2 Replies

2. Programming

Will we get SEGV if we try to “delete []” un-initialized integer pointer variable.

I have a class with an integer pointer, which I have not initialized to NULL in the constructor. For example: class myclass { private: char * name; int *site; } myclass:: myclass(....) : name(NULL) { ..... } other member function “delete “ the variable before... (2 Replies)
Discussion started by: sureshreddi_ps
2 Replies

3. UNIX for Dummies Questions & Answers

Converting a String variable into Integer

Hi, I am passing a variable to a unix function. However when I try to assign the value to another variable like typeset -i I_CACHE_VAL=$2 Is this because of String to Integer conversion? I get an error. Please help me with thsi. Thanks (2 Replies)
Discussion started by: neeto
2 Replies

4. Shell Programming and Scripting

Floating point to integer in variable length lines

Hi ! I'm looking for a way to transform certain floating point numbers in a one-line, variable length file to integers. I can do this in a crude way with sed : sed -e 's/0\.\(\):/\1:/g' -e 's/0\.0\(\):/\1:/g' -e 's/1\.000:/100:/g' myfile ... but this doesn't handle the rounding correctly. ... (3 Replies)
Discussion started by: jossojjos
3 Replies

5. Shell Programming and Scripting

What's the max integer a variable can hold?

I would like to know the maximum integer that a variable can hold. Actually one of my variable holds value 2231599773 and hence the script fails to process it.Do we have any other data type or options available to handle this long integers? (9 Replies)
Discussion started by: michaelrozar17
9 Replies

6. Shell Programming and Scripting

Read Variable From Fille And Convert it to Integer

I read 3 variables from from Inputfile.txt the third one "startnumber" is a number when i compare it with 9 ($startnumber -le 9) it give's me a "unary operator expected", i know that -le is for number comparison. What i need is to convert $startnumber to integer (i have try to do it with expr but... (8 Replies)
Discussion started by: marios
8 Replies

7. Solaris

How to Use a Variable as Integer?

hello, i am writing a script that takes the UID from the PASSWD and then i want to increse the Number by one. for the Next user. i cannot get this to work that a variable is as interger example: set i = 0 set $i = $+1 it's in tcsh if it's mather (10 Replies)
Discussion started by: shatztal
10 Replies

8. Shell Programming and Scripting

Subtracting values from variable

Legends, Please help me in , how do i subtract the variable values listed like below. the first value of orig should be subtracted from first value of prev and so on. san> echo $orig 346 316 340 239 410 107 291 139 128 230 167 147 159 159 172 116 110 260 177 0 177 169 168 186 165 366 195... (15 Replies)
Discussion started by: sdosanjh
15 Replies

9. Shell Programming and Scripting

Date/Time parts to variable as integer

Hi Guys, i guess there is a several ways to grub the strings from date and time like THISMONTH='/bin/date +%m' but the hard part is to add or sub that string to a variable i tried to use let command TWOMONTHSAGO=$THISMONTH declare -i TWOMONTHSAGO let TWOMONTHSAGO-=2 but there... (1 Reply)
Discussion started by: CyR0iz4l1v3
1 Replies

10. UNIX for Beginners Questions & Answers

Replace integer string in a variable based on month?

Hi Folks - Linux Version = Linux 2.6.39-400.128.17.el5uek x86_64 I have a process that determines the start and end load periods for an Oracle data load process. The variables used are as follows follows: They are populated like such: However, the load requires the month to be the... (11 Replies)
Discussion started by: SIMMS7400
11 Replies
Locale::Codes::LangFam(3)				User Contributed Perl Documentation				 Locale::Codes::LangFam(3)

NAME
Locale::Codes::LangFam - standard codes for language extension identification SYNOPSIS
use Locale::Codes::LangFam; $lext = code2langfam('apa'); # $lext gets 'Apache languages' $code = langfam2code('Apache languages'); # $code gets 'apa' @codes = all_langfam_codes(); @names = all_langfam_names(); DESCRIPTION
The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in ISO 639-5. Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5 language family codes will be used. SUPPORTED CODE SETS
There are several different code sets you can use for identifying language families. A code set may be specified using either a name, or a constant that is automatically exported by this module. For example, the two are equivalent: $lext = code2langfam('apa','alpha'); $lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA); The codesets currently supported are: alpha This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages. This is the default code set. ROUTINES
code2langfam ( CODE [,CODESET] ) langfam2code ( NAME [,CODESET] ) langfam_code2code ( CODE ,CODESET ,CODESET2 ) all_langfam_codes ( [CODESET] ) all_langfam_names ( [CODESET] ) Locale::Codes::LangFam::rename_langfam ( CODE ,NEW_NAME [,CODESET] ) Locale::Codes::LangFam::add_langfam ( CODE ,NAME [,CODESET] ) Locale::Codes::LangFam::delete_langfam ( CODE [,CODESET] ) Locale::Codes::LangFam::add_langfam_alias ( NAME ,NEW_NAME ) Locale::Codes::LangFam::delete_langfam_alias ( NAME ) Locale::Codes::LangFam::rename_langfam_code ( CODE ,NEW_CODE [,CODESET] ) Locale::Codes::LangFam::add_langfam_code_alias ( CODE ,NEW_CODE [,CODESET] ) Locale::Codes::LangFam::delete_langfam_code_alias ( CODE [,CODESET] ) These routines are all documented in the Locale::Codes::API man page. SEE ALSO
Locale::Codes The Locale-Codes distribution. Locale::Codes::API The list of functions supported by this module. http://www.loc.gov/standards/iso639-5/id.php ISO 639-5 . AUTHOR
See Locale::Codes for full author history. Currently maintained by Sullivan Beck (sbeck@cpan.org). COPYRIGHT
Copyright (c) 2011-2013 Sullivan Beck This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.16.3 2013-02-27 Locale::Codes::LangFam(3)
All times are GMT -4. The time now is 01:22 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy