Create automated scan of specific directory using bash


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# 1  
Create automated scan of specific directory using bash

I am trying to use bash to automate the scan of a specific directory using clamav. Having this in place is a network requirement. The below is an attempt to:

1. count the extensions (.txt, .jpeg) in a directory and write them to a virus-scan.log (section in bold)

2. scan each folder in the dir and log the results of the scan by date. (section in italics)

Each folder in the directory is scanned and the results of each day the scan is run is logged to /HOME/virus-scan.log by date.

Thank you Smilie.

Code:
#!/bin/bash
DIR=/home/cmccabe/Desktop/NGS/API
line_no=$(ls | awk -F . '{print $NF}' | sort | uniq -c | awk '{print $2,$1}') # count folder type and store as variable
echo >> $HOME/virus-scan.log"The folders detected are:
$line_no"

# Get rid of old log file
rm $HOME/virus-scan.log 2> /dev/null
 
while read FILE in $DIR;
do
     # check file length is nonzero otherwise commands may be repeated
     if [ -s $FILE ]; then
          date > $HOME/virus-scan.log
          clamscan -r $FILE >> $HOME/virus-scan.log
     else "echo nothing detected by scan"
     fi
done


Last edited by cmccabe; 01-06-2017 at 01:10 PM.. Reason: fixed format
# 2  
So... What's your question?
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# 3  
Sorry, the script runs but just halts and nothing happens and I'm not sure whats wrong or if this is the best way. Thank you Smilie.

Last edited by cmccabe; 01-06-2017 at 02:06 PM.. Reason: added details
# 4  
Try for FILE in $DIR instead of while read FILE in $DIR , read actually tries to read from standard input (in this context, your keyboard).
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# 5  
Thank you very much, that worked perfectly Smilie. The explanation is appreciated Smilie
# 6  
Yes the for loop is best to cycle through a list.
But $DIR is only one item.
Maybe you want $DIR/* aka all items in $DIR ?
This might do what you intend
Code:
#!/bin/bash
DIR=/home/cmccabe/Desktop/NGS/API
log=$HOME/virus-scan.log

{
echo "The extensions are"
ls | awk -F'\.' 'NF>1 {ext[$NF]++} END {for (i in ext) print ext[i],i}'
} > $log

scanned=0
for FILE in "$DIR"/*
do
     # check file length is nonzero otherwise commands may be repeated
     if [ -s "$FILE" ]; then
          {
          date
          clamscan -r "$FILE"
          } >> $log
          ((scanned++))
     fi
done
[ $scanned -eq 0 ] && echo "nothing detected by scan" >> $log

This User Gave Thanks to MadeInGermany For This Post:
# 7  
On linux systems clamav implements a system to watch directories using inotify subsystem.

You might want to check that out :
http://blog.clamav.net/2016/03/confi...in-clamav.html
This User Gave Thanks to Peasant For This Post:
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