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Full Discussion: help with awk command
Top Forums Shell Programming and Scripting help with awk command Post 302688439 by kshji on Sunday 19th of August 2012 08:37:01 AM
Old 08-19-2012
Rule ? Which field to show using bold ? Input file size ? If big, then maybe awk is the best tool.
Basic idea something like:
Code:
#!/usr/bin/someposixshell      
# (ksh, bash, dash, ...)
# get terminal bold on/off sequences using tput from terminfo database
bold_on=$(tput smso)
bold_off=$(tput rmso)

# using in the command line
echo a $bold_on b $bold_off c

# or in  the awk

awk -v bold_on="$bold_on" -v bold_off="$bold_off"  '
{ $5=bold_on $5 bold_off  # change some field including bold and bold off
  print $4 ,$5,$6
  # or only print something using bold_on bold_off
  print $2 ,bold_on,$3,bold_off,$6
  printf "some %s somevalue %s something else \n",bold_on,bold_off
} ' input_file

 

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GREP(1) 						      General Commands Manual							   GREP(1)

NAME
grep - search a file for lines containing a given pattern SYNOPSIS
grep [-elnsv] pattern [file] ... OPTIONS
-e -e pattern is the same as pattern -c Print a count of lines matched -i Ignore case -l Print file names, no lines -n Print line numbers -s Status only, no printed output -v Select lines that do not match EXAMPLES
grep mouse file # Find lines in file containing mouse grep [0-9] file # Print lines containing a digit DESCRIPTION
Grep searches one or more files (by default, stdin) and selects out all the lines that match the pattern. All the regular expressions accepted by ed and mined are allowed. In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or 1 occurrences, and | can be used between two regular expressions to mean either one of them. Parentheses can be used for grouping. If a match is found, exit status 0 is returned. If no match is found, exit status 1 is returned. If an error is detected, exit status 2 is returned. SEE ALSO
cgrep(1), fgrep(1), sed(1), awk(9). GREP(1)
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