Nano Taboada

This time I’m bringing you a self-documented cron table file (with an example), that is, a tidy cheatsheet diagram embedded as comments that does just one thing, helps you remember the crontab syntax:

# * * * * * command to be executed
# - - - - -
# | | | | |
# | | | | +—– day of week (0 - 6) (Sunday=0)
# | | | +——- month (1 - 12)
# | | +——— day of month (1 - 31)
# | +———– hour (0 - 23)
# +————- min (0 - 59)

# Alarm clock set to 6:30AM
30 6 * * * /home/nano/alarm

I hope you find it useful, thanks for reading and happy May Revolution Day to everyone!

I guess I’m getting too used to the “it’s been a while!” thingy so, awkward title aside, let’s just move straight to today’s post:

The more I learn about AWK, the more I love it. It’s just that simple. I’ve been trying its powers a bit and came with an awk-mazing (and probably useless, but still exciting) five-lines (sans comments) cute script that emulates the most popular feature (the “-e” option) of our good ol’ boy apropos.
Enter lazyman!

#!/bin/bash
#
# lazyman.sh - displays the name section of some program’s man
# page.
#
# DESCRIPTION
# this tiny script shows the NAME section of a given program’s
# manual page, displaying an output quite similar to
# “apropos -e” but directly calling “man” instead of querying
# against “mandb”.
#
params=$(echo $@ | awk ‘END{print NF}’)
case $params in
1) man $1 | awk ‘/NAME/{getline;print}’ ;;
*) echo “usage: lazyman.sh [program]” ;;
esac

That’s all folks! I hope you’ve enjoyed it and thanks for reading!

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