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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
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Top Tags





coloured tail

Terminal - coloured tail
tail -f FILE | perl -pe 's/KEYWORD/\e[1;31;43m$&\e[0m/g'
2009-06-02 21:31:54
User: tuxifier
Functions: perl tail
coloured tail

tail with coloured output with the help of perl - need more colours? here is a colour table:



There are 5 alternatives - vote for the best!

Terminal - Alternatives
tail -F file | egrep --color 'pattern|$'
tail -f FILE | grep --color=always KEYWORD
2009-10-15 06:54:45
User: dennisw
Functions: grep tail
Tags: color
tail -f file | egrep --color=always $\|PATTERN
2009-10-15 13:08:30
User: sitaram
Functions: egrep file tail
Tags: color

but you can't see the colors in that sample output :(

Know a better way?

If you can do better, submit your command here.

What others think

how i can do for coloure two outputs?

Comment by klcom 324 weeks and 3 days ago

i do it...

tail -100f /area0/logs/lognotes | perl -pe 's/transferred/\e[1;34;44m$&\e[0m/g & s/delivered/\e[1;32;42m$&\e[0m/g'

Comment by klcom 324 weeks and 3 days ago

with 2 colours

tail -100f /area0/logs/lognotes | perl -pe 's/transferred/\e[1;34;44m$&\e[0m/g & s/delivered/\e[1;32;42m$&\e[0m/g'
Comment by klcom 324 weeks and 3 days ago

This is invaluable for working on older locked down unix servers thank you.

I have added an "i" before the final "g" to make it case insensitive.

perl -pe 's/KEYWORD/\e[1;31;43m$&\e[0m/ig'

Comment by zlemini 312 weeks and 5 days ago

This is a great command but is easy to forget. The easy version is to instead pipe to egrep --color 'pattern|$'. So much easier to do and remember.

Comment by inanutshellus 244 weeks and 3 days ago

Your point of view

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