Shell Programming and Scripting

running a suse linux 10.

I'm trying to write a script that searches for a file with certain name and that has been modified less than 30 minutes ago, then search for a certain string in that file and email this string out. I have tried different combinations of find, grep and email but no luck so far.

Your help would be appreciated.

Show us what you've tried and we'll help you correct it.

I have tried the following:But i get the error command LINE 7, PRINT: command not valid

#!/bin/bash
#set -x

if [[ $# = "0" ]]
then

print "USAGE: $0 [Search_Directory]"
exit 0

elif [[ ! -d ${1} ]]
then

print "$0 : Error, must provide a directory path to search for files modified in last 30 minutes!"
exit 1

else

SRCHDIR=${1}

fi

FOUNDARRAY=( $(find ${SRCHDIR} -mmin -30|xargs) )

for I in ${FOUNDARRAY[*]}
do

STR="$(grep -i "[mysearch_string_here]" ${I})"

if [[ ! -z ${STR} && -f ${I} ]]
then

echo "${STR}" | mailx -s "File: ${I} has the string" [my email address here]

fi

done

Use the find command.

I created a file called blablabla.txt, in it i placed the text.... "bla bla bla dan

With the command:
find . -cmin -30 -name "b*"

Only blablabla.txt is found.

$ find . -cmin -30 -name "b*"
./blablabla.txt

Add grep to find to search for the text... You want to use the -l command for grep so that the file name is printed instead of the text.

Search for file again, but look for the text dan in it.
$ find . -cmin -30 -name "b*" -exec grep -l "dan" '{}' \;
./blablabla.txt

Search for file again, but with text I know is not in the file.
$ find . -cmin -30 -name "b*" -exec grep -l "crap" '{}' \;
$

I used this web site for examples when I was putting all of that together. I knew what command to use, just not exactly how to do it.

Unix Find Tutorial


Find command has to be one of my favorite commands.

drool

$ find . -cmin -30 -name "b*" -exec grep -l "dan" '{}' \;
./blablabla.txt


I should have qualified that to be:
find . -type f -name "b*" -cmin -30 -exec grep -l "dan" '{}' \;

That search's recursively in the current directory for files that have lower case 'b' at the beginning of their name, that have been changed in the last 30 minutes, and also has the text dan within the file..

Hope that helps.

drool

print is specific to Korn shell.

After playing for another week, I came up with the following. This script works just fine for me except one small problem, i.e, even if there are no files that are less than 30 mins old, it still sends out an email with the blank body. I know i need a better if and then statement, but just dont have expertise to correct it. Please help out.

#!/bin/sh
# this is myscript.sh
newfile=`find /usr/mysearchpath/ -mmin -30`
grep 'searchstring*' $newfile>/usr/mysearchpathagain/resultsfile
if [ $# -eq 0 ]
then
mail -s 'found it' \ email address -t </usr/searchpath/resultsfile
fi