in Linux, need one SHELL Script for How many files currently open

any help please

you'll need the LSOF command for this I guess

https://en.wikipedia.org/wiki/Lsof

yes its LSOF command .. but I need to create a script file .. by running it will write the output in a log file with the currently opened files in Linux

Durga Charan Ojha - why did you use 'Request Attention'? You can just ask about that number 38025 here by posting a comment.

The output of this simple script I suggested is showing date/time + text + number of files. If you just want the number then do this:

 echo $(lsof | grep REG | wc -l) >> output.txt

Hi Gerwin Jansen, EE MVE
Do you mean 38025  is the number of file opened in linux ?
Let say I have firefox, chrome and one libre office file opened .. is there any command to check this from ssh
so that output will show only for the opened applications

I tried only lsof - the output keeps on running .. i just closed the terminal
as said I need only output like as i know in the machine I have just opened chrome, firefox, editor
so it should show output .

>> I tried only lsof
Of course it does, you should just wait patiently (it will stop after some time) or apply a filter like "-c firefox"

Just try for firefox first:

lsof -c firefox | grep REG | wc -l

should give you just the number.

lsof -c firefox | grep REG

this should show you the files