Commands by harshh (0)

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floating point operations in shell scripts
using bc is for sissies. dc is much better :-D Polish notation will rule the world...

Prepend a text to a file.
Syntax: $ prepend content to add [filename] Uses ed, so no temp files created.

Advanced python tracing
Trace python statement execution and syscalls invoked during that simultaneously

IBM AIX: Extract a .tar.gz archive in one shot
This command is for UNIX OSes that have plain vanilla System V UNIX commands instead of their more functional GNU counterparts, such as IBM AIX.

analyze traffic remotely over ssh w/ wireshark
This captures traffic on a remote machine with tshark, sends the raw pcap data over the ssh link, and displays it in wireshark. Hitting ctrl+C will stop the capture and unfortunately close your wireshark window. This can be worked-around by passing -c # to tshark to only capture a certain # of packets, or redirecting the data through a named pipe rather than piping directly from ssh to wireshark. I recommend filtering as much as you can in the tshark command to conserve bandwidth. tshark can be replaced with tcpdump thusly: $ ssh root@example.com tcpdump -w - 'port !22' | wireshark -k -i -

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"

rename / move Uppercase filenames to lowercase filenames current directory
move filename/rename filenames with Uppercase to lowercase in current directory

SSH Auto-login with password
You need to install "sshpass" for this to work. apt-get install sshpass

Prints line numbers
If you don't have nl on your system, this achieves a similar effect, the default behavior in nl is to not number blank lines, but this does.

rename anime fansubs
renames Anime Episodes to files, that can be parsed by sonarr & co

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