Commands tagged #Bash (1)

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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)

Diff on two variables
You got some results in two variables within your shell script and would like to find the differences? Changes in process lists, reworked file contents, ... . No need to write to temporary files. You can use all the diff parameters you'll need. Maybe anything like $ grep "^>" is helpful afterwards.

Add temporary swap space
In addition to a swap partition, Linux can also use a swap file. Some programs, like g++, can use huge amounts of virtual memory, requiring the temporary creation of extra space.

lotto generator

resolving basic authentication problem(401) with wget
I have a server with a php requiring basic authentication, like this:

list block devices
Shows all block devices in a tree with descruptions of what they are.

Fetch the current human population of Earth
Fetches the world population JSON data from the US census and parses it uses jshon

Print all the lines between 10 and 20 of a file
Similarly, if you want to print from 10 to the end of line you can use: sed -n '10,$p' filename This is especially useful if you are dealing with a large file. Sometimes you just want to extract a sample without opening the entire file. Credit goes to wbx & robert at the comments section of http://www.commandlinefu.com/commands/view/348/get-line1000-from-text.#comment

Paste command output to www.pastehtml.com in txt format.
paste(){ curl -s -S --data-urlencode "txt=$($@)" "http://pastehtml.com/upload/create?input_type=txt&result=address";echo;}

Calculate sum of N numbers (Thanks to flatcap)
replaces "\n" with "+"


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