Commands by Haegin

Commands by Haegin (3)

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Create a new file
This is sample output - yours may be different.
-25

touch file

Haegin · 2010-12-28 11:25:06 0
Read PDFs in the command line

Turns a PDF into HTML (without images) and prints it to the standard out which is picked up and interpreted by w3m.
This is sample output - yours may be different.
4

pdftohtml -i -stdout FILE.pdf | w3m -T text/html

Haegin · 2010-11-03 12:01:01 1
show your private/local ip address

This doesn't make any assumptions about your IP address and prints out one IP address per line if you have multiple network interfaces. Show Sample Output
This is sample output - yours may be different.
```
77.98.155.94
10.0.0.1
```
-3

ifconfig | sed '/.*addr.*Bcast.*/ ! d'| sed 's/.*addr:$[0-9\.]*$.*/\1/'

Haegin · 2010-03-26 08:13:13 0

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Change every instance of OLD to NEW in file FILE

Very quick way to change a word in a file. I use it all the time to change variable names in my PHP scripts (sed -i 's/$oldvar/$newvar/g' index.php)

Clear current session history (bash)

Use nroff to view the man pages

Using nroff , it is possible to view the otherwise garbled man page with col command.

pretend to be busy in office to enjoy a cup of coffee

combination of several of the above

Fetch the current human population of Earth

Avoids ssh timeouts by sending a keep alive message to the server every 60 seconds

ssh_config is the system-wide configuration file for ssh. For per-user configuration, which allows for different settings for each host: $echo 'ServerAliveInterval 60' >> ~/.ssh/ssh_config On OSX: $echo 'ServerAliveInterval 60' >> ~/.ssh/config or $echo 'ServerAliveInterval 60' >> ~/etc/ssh_config

Find Duplicate Files (based on MD5 hash) -- For Mac OS X

This works on Mac OS X using the `md5` command instead of `md5sum`, which works similarly, but has a different output format. Note that this only prints the name of the duplicates, not the original file. This is handy because you can add `| xargs rm` to the end of the command to delete all the duplicates while leaving the original.

gzip compression with progress bar and remaining time displayed

Extracting a range of pages from a PDF, using GhostScript

In this example we extract pages 14-17

diff color words

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