Commands using sed (1,319)

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move up through directories faster (set in your /etc/profile or .bash_profile)
You can also remove the "&& pwd" if you don't want it to print out each directory as it moves up.

Given process ID print its environment variables
Same as previous but without fugly sed =x

command line calculator
simple function , floating point number is supported.

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"

Get decimal ascii code from character
the shortest command for character 'a' i know

floating point operations in shell scripts
Calculator for shell. Similar performance and basic usage as 'bc', but with more advanced features. Not installed on most systems by default.

Mount a disk image (dmg) file in Mac OSX
To unmount, replace "attach" with "eject"

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

tar copy
Just a copy of a big dir when you wan't things like ownership and date etc etc to be untouched. Note: Updated with the ideas from "mpb".

Update IP filter for qBittorrent
Downloads Bluetack's level 1 IP blocklist in .p2p format, suitable for various Bittorrent clients.


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