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Top Forums Shell Programming and Scripting awk to select lines with maximum value of each record based on column value Post 302988197 by vgersh99 on Wednesday 21st of December 2016 04:37:02 PM
Old 12-21-2016
Quote:
Originally Posted by yifangt
Thanks!
How did you come with this trick "!NF" ?
I guess by RTFMing? Smilie

---------- Post updated at 04:37 PM ---------- Previous update was at 04:23 PM ----------

Quote:
Originally Posted by yifangt
How did you come with this trick "!NF" !
One more question: Could you please elaborate END block for me?
Thanks!
there might be no trailing empty line after the LAST block (as in you example).
So the '!NF' will never catch the last record. So we're catching it in the END block - after ALL the records have been processed.
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set_color(1)							       fish							      set_color(1)

NAME
set_color - set_color - set the terminal color set_color - set the terminal color Synopsis set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR] Description Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple, cyan, white and normal. o -b, --background Set the background color o -c, --print-colors Prints a list of all valid color names o -h, --help Display help message and exit o -o, --bold Set bold or extra bright mode o -u, --underline Set underlined mode o -v, --version Display version and exit Calling set_color normal will set the terminal color to whatever is the default color of the terminal. Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey font color, while set_color --bold white will result in a white font color. Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator. set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of ncurses and recompile fish against it in order to fix this issue. Version 1.23.1 Sun Jan 8 2012 set_color(1)
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