How To Read Multiple Lines of User Input from the Command Line in Perl

Author: erics, October 9th, 2019

Use Case: Export Apple Reminders from MacOS application to cleaned plain text, i.e. remove unwanted spaces, blank lines and square brackets PROCEDURE Click on a single item in the MacOS Reminders app list Select All (either Command-a or use Edit->Select All) Copy (either Command-c or use Edit->Copy) Open Terminal Run cleanme Paste the copied reminders […]

Categories: How-To's, Technology Tags: apple, array, input, List, MacOS, Multi, Multi-line, Multiline, Multiple, perl, Plain, Plaintext, Read, Reminders, STDIN, Terminal, text() | No comments

How To List Running AWS Instances in all Regions Sorted by LaunchTime and Email in a Monospaced Font

Author: erics, July 1st, 2019

#!/bin/sh

DATE=`date`

(
echo "From: Your Full Name <you@yourdomain.com>"
echo "To: you@yourdomain.com"
echo "Subject: AWS Instances Report for All Customers as of $DATE"
cat <<EOT
MIME-Version: 1.0
Content-Type: text/html
Content-Disposition: inline
<html>
<body>
<pre style="font: monospace">
EOT
for profile in customer1 customer2 customer3; do
	for region in `aws ec2 describe-regions --output text | cut -f3`; do
		echo -e "\nListing Instances for profile $profile in region: '$region'..."
		aws ec2 describe-instances \
		--filters "Name=instance-state-name,Values=running" \
		--query 'Reservations[*].Instances[*].[InstanceId, PublicIpAddress, LaunchTime, InstanceType, Tags[?Key==`Name`] | [0].Value]| sort_by(@, &@[0][2])' \
		--region $region \
		--profile $profile \
		--output table
	done
done
cat <<EOT
</pre>
</body>
</html>
EOT
) | /usr/sbin/sendmail -t

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#!/bin/sh

DATE=`date`

(

echo "From: Your Full Name <you@yourdomain.com>"

echo "To: you@yourdomain.com"

echo "Subject: AWS Instances Report for All Customers as of $DATE"

cat <<EOT

MIME-Version: 1.0

Content-Type: text/html

Content-Disposition: inline

<html>

<body>

EOT

for profile in customer1 customer2 customer3; do

for region in `aws ec2 describe-regions --output text | cut -f3`; do

echo -e "\nListing Instances for profile $profile in region: '$region'..."

aws ec2 describe-instances \

--filters "Name=instance-state-name,Values=running" \

--query 'Reservations[*].Instances[*].[InstanceId, PublicIpAddress, LaunchTime, InstanceType, Tags[?Key==`Name`] | [0].Value]| sort_by(@, &@[0][2])' \

--region $region \

--profile $profile \

--output table

done

cat <<EOT

</pre>

</body>

</html>

EOT

) | /usr/sbin/sendmail -t

Categories: How-To's, Technology Tags: AWS, aws ec2, Date, EC2, Email, Font, Format, howto, html, LaunchTime, mail, monospace, monospaced, Multiple, Region, Regions, SendMail, sort, Sort By, time, tips | No comments

How To Install Multiple Perl Modules From The Command Line

Author: erics, July 14th, 2010

Create a text file containing the list of desired modules, one per line. Name it “modules.txt”. Then execute this command: for module in cat modules.txt; do echo $module; perl -MCPAN -e “install $module”; done

Categories: How-To's, Technology Tags: cli, Command line, CPAN, Install, Install Multiple, Multiple, perl | No comments

How To Read Multiple Lines of User Input from the Command Line in Perl

How To List Running AWS Instances in all Regions Sorted by LaunchTime and Email in a Monospaced Font

How To Install Multiple Perl Modules From The Command Line

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