I've never aliased it, but yes I use your 'hist' a lot. Useful for things like "categorise log errors" etc.
Does everyone else edit command history, stacking up 'grep -v xxxx' in the pipeline to remove noise?
If I'm working on a new pipeline, my normal workflow is something like:
head file # See some representative lines
head file | grep goodstuff
head file | grep good stuff | grep -v badstuff
head file | grep ... | grep ... | sed -e 's/cut out/bits/' -e 's/i dont/want/'
head file | grep ... | grep ... | sed -e 's/cut out/bits/' -e 's/i dont/want/' | awk '{print $3}' # get a col
head file | grep ... | grep ... | sed -e 's/cut out/bits/' -e 's/i dont/want/' | awk '{print $3}' | sort | uniq -c | sort -nr # histogram as parent
Then I edit the 'head' into a 'cat' and handle the whole file. Basically all done with bash history editing (I'm a 'set -o vi' person for vi keybindings in bash, emacs is fine too :-)
Yeah, this is my quick-and-dirty way of looking at referers in Apache logs, built up from a few history edits. It excludes some bot-like stuff (many bots give a plus-prefixed URL in the user-agent string) and referer strings from my own domain, removes query strings, and cleans up trailing slashes:
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I've never aliased it, but yes I use your 'hist' a lot. Useful for things like "categorise log errors" etc.
Does everyone else edit command history, stacking up 'grep -v xxxx' in the pipeline to remove noise?
If I'm working on a new pipeline, my normal workflow is something like:
Then I edit the 'head' into a 'cat' and handle the whole file. Basically all done with bash history editing (I'm a 'set -o vi' person for vi keybindings in bash, emacs is fine too :-)is the same as
cut is amazing for what it does. and most people know only the subset of awk that effectively _is_ cut anyway :D.
Not exactly, awk will consume all whitespace while cut will split on each individual space character, and not on newlines and tabs.
Yeah, this is my quick-and-dirty way of looking at referers in Apache logs, built up from a few history edits. It excludes some bot-like stuff (many bots give a plus-prefixed URL in the user-agent string) and referer strings from my own domain, removes query strings, and cleans up trailing slashes:
Bundling expressions into regular expressions can be handy, for example "grep -Ev '(thisbot|thatbot|bingbot|bongbot)'" instead many single grep pipes.