Commands by AnthonyLewis9201 (0)

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print DateTimeOriginal from EXIF data for all files in folder
see output from `identify -verbose` for other keywords to filter for (e.g. date:create, exif:DateTime, EXIF:ExifOffset).

Drop or block attackers IP with null routes
Someone might attack on your system. You can drop attacker IP using IPtables. However, you can use route command to null route unwanted traffic. A null route (also called as blackhole route) is a network route or kernel routing table entry that goes nowhere. Matching packets are dropped (ignored) rather than forwarded, acting as a kind of very limited firewall. The act of using null routes is often called blackhole filtering.

Show directories in the PATH, one per line
Shorter version.

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"

Email HTML content
Note, this works because smtp is running

Switch to the previous branch used in git(1)
Very useful if you keep switching between the same two branches all the time.

print all except first collumn

Bash: escape '-' character in filename

Position the cursor under the current directory line
In case you're like me and like your commands to start on clean lines, especially when you're deep into a 10-level directory tree. This can be added to .bashrc.

determine if tcp port is open
@putnamhill, no need if statement in that case. && is a AND and || is a OR

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