Commands by Haegin

Commands by Haegin (3)

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Create a new file
This is sample output - yours may be different.
-24

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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Display information sent by browser

Have netcat listen on port 8000, point browser to http://localhost:8000/ and you see the information sent. netcat terminates as soon as your browser disconnects. I tested this command on my Fedora box but linuxrawkstar pointed out that he needs to use $ nc -l -p 8000 instead. This depends on the netcat version you use. The additional '-p' is required by GNU netcat that for example is used by Debian but not by the OpenBSD netcat port used by my Fedora system.

Create a mirror of a local folder, on a remote server

Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

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"

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

du with colored bar graph

A more efficient way, with reversed order to put the focus in the big ones.

Find biggest 10 files in current and subdirectories and sort by file size

Execute matlab sentences from command line

Execute matlab sentences in shell script: for var in `seq 0 0.2 1` ; do echo "my_function($var);" | matlab -nodisplay done

Search inside a folder of jar/zip files

Great for finding which jar some pesky class is hiding in!

commentate specified line of a file

used when modify several configuration files with a single command

Rotate a pdf by 90 degrees CW

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