Commands tagged bash (821)

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Embed next line on the end of current line using sed
N: On the current line, sed will display it on pattern space, plus a \n (new line); but s/\n//: Will get rid of new line displayed on pattern space, joining the current line's end with the start of the next line Useful in scripts.

Get the time since epoch
Get the time since epoch. Useful when working with commands and logs which use this format.

xargs for builtin bash commands
Similar to xargs -i, but works with builtin bash commands (rather than running "bash -c ..." through xargs)

list files in mtime order
Simple but useful; list files in the current directory in mtime order. Useful if you've been working on something and then take a day or two off.

show the real times iso of epochs for a given column
When you have one of those (log)files that only has epoch for time (since no one will ever look at them as a date) this is a way to get the human readable date/time and do further inspection. Mostly perl-fu :-/

Instant mirror from your laptop + webcam

Set GIT_COMMITTER_DATE = GIT_AUTHOR_DATE for all the git commits

Run the last command as root
Useful when you forget to use sudo for a command. "!!" grabs the last run command.

Awesomeness Confirmation Bias

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"


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