export varibles & bc

Andy_Crowd · 2014-06-29 11:04:09

This is the script that I am using with the find command to calculate a number of files:

if [ 'XX'"$RLASTFILENUMBER" != 'XX'  ]; then
export RLASTFILENUMBER="1"
fi
RLASTFILENUMBER=$(echo $RLASTFILENUMBER+1 | bc -l );

Gives errors like: (standard_in) 1: syntax error

I need it to make a limit of files in the folder before other actions.

karol · 2014-06-29 11:17:18

bash can do integers just fine on its own:

$ echo $((123+1))
124

Edit:

$ export RLASTFILENUMBER="1"
$ echo $(($RLASTFILENUMBER+1)) 
2

Last edited by karol (2014-06-29 11:18:24)

Andy_Crowd · 2014-06-29 11:44:36

I am exporting variables outside of the script but cannot read from within script.

lolilolicon · 2014-06-29 11:55:51

You said you were using this script with `find`, but you didn't describe how exactly. You need to describe the context better, what you're doing, what you're trying to do, etc.

karol · 2014-06-29 11:56:52

I'm not sure what's the correct way of doing this, but

#!/bin/bash

foo="1"

echo $(($foo+1))

works.

Andy_Crowd · 2014-06-29 12:13:03

I am using like

$ export DDD="1"

#!/bin/bash
export DDD=$(echo $(($DDD+1)))
echo $DDD

I want it to remmember the variable value outside of the script. Because I need to run this script many times and cannot keep everything inside.

karol · 2014-06-29 12:16:27

Can you post the rest of the script, the 'find' part?
You can make it read a value from a file, if needed.

Andy_Crowd · 2014-06-29 12:53:07

I am using something like

find * -type f -name * -exec myscript.sh \;

each time it runs the script a new value should be stored and calculated.
It will take more time if a file will be created for variables. I am making script for finding files by type and sort them by folders. I have more then 50 000 files and I want to automate searching and sorting out of images and other files by a type. In a preview post you can see the more important part of the script, but I solved it, only this part with calculation left.

Last edited by Andy_Crowd (2014-06-29 13:01:15)

karol · 2014-06-29 13:02:22

'find -type f -exec myscript.sh \;' should work too.

What does myscript.sh do?

Andy_Crowd · 2014-06-29 13:08:32

you can read this post my solved post

Arch Linux

#1 2014-06-29 11:04:09

export varibles & bc

#2 2014-06-29 11:17:18

Re: export varibles & bc

#3 2014-06-29 11:44:36

Re: export varibles & bc

#4 2014-06-29 11:55:51

Re: export varibles & bc

#5 2014-06-29 11:56:52

Re: export varibles & bc

#6 2014-06-29 12:13:03

Re: export varibles & bc

#7 2014-06-29 12:16:27

Re: export varibles & bc

#8 2014-06-29 12:53:07

Re: export varibles & bc

#9 2014-06-29 13:02:22

Re: export varibles & bc

#10 2014-06-29 13:08:32

Re: export varibles & bc

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