Commands by CoolHand

Commands by CoolHand (1)

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Print a cron formatted time for 2 minutes in the future (for crontab testing)

usage = crontest "/path/to/bin" This version of this function will echo back the entire command so it can be copied/pasted to crontab. Should be able to be automagically appended to crontab with a bit more work. Tested on bash and zsh on linux,freebsd,aix Show Sample Output
This is sample output - yours may be different.
```
49 15 12 03 *   /path/to/bin
```
0

crontest () { date +'%M %k %d %m *' |awk 'BEGIN {ORS="\t"} {print $1+2,$2,$3,$4,$5,$6}'; echo $1;}

CoolHand · 2015-03-12 19:56:56 2

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Monitor a file with tail with timestamps added

To find the LDAP clients connected to LDAP service running on Solaris

Manipulate the metadata when the photo was taken, this will shift with +15hours + 30min

Customer Friendly free

makes more sense to customers XD

Mortality Countdown

watch the seconds of your life tick away - replace YYYY-mm-dd HH:MM:ss w/ your birthtime.

Go up multiple levels of directories quickly and easily.

Unix alias for date command that lets you create timestamps in ISO 8601 format

I often need to add a timestamp to a file, but I never seem to remember the exact format string that has to be passed to the date command to get a compact datetime string like 20090220T231410 (i.e yyyymmddThhmmss, the ISO 8601 format popular outside the US)

Get the version of sshd on a remote system

I used this to confirm an upgrade to an SSH daemon was successful

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Mac Sleep Timer

Schedule your Mac to sleep at any future time. Also wake, poweron, shutdown, wakeorpoweron. Or repeating with $ sudo pmset repeat wakeorpoweron MTWRFSU 7:00:00 Query with $ pmset -g sched Lots more at http://www.macenterprise.org/articles/powermanagementandschedulingviathecommandline

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