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Full Discussion: No error in awk...
Top Forums UNIX for Dummies Questions & Answers No error in awk... Post 302969973 by jlliagre on Wednesday 30th of March 2016 07:58:33 PM
Old 03-30-2016
To detect random input, I'd rather add this test after getline:

Code:
if(FREQ !=0 && FREQ+0==0) { printf("Invalid frequency: [%s]\n",FREQ); exit 1 ; }

Note that all your lines are ended by a semicolon but this is not needed with awk. Unlike with C, an end of line is already ending a command so the semicolon is only required to delimit multiple commands on a single line.
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LEARN ABOUT DEBIAN

eid

EID(1)								   User Commands							    EID(1)

NAME

       eid - Query ID database and report results.

SYNOPSIS

       eid [OPTION]... PATTERN...

DESCRIPTION

       Query  ID database and report results.  By default, output consists of multiple lines, each line containing the matched identifier followed
       by the list of file names in which it occurs.

       -f, --file=FILE
	      file name of ID database

       -i, --ignore-case
	      match PATTERN case insensitively

       -l, --literal
	      match PATTERN as a literal string

       -r, --regexp
	      match PATTERN as a regular expression

       -w, --word
	      match PATTERN as a delimited word

       -s, --substring
	      match PATTERN as a substring

	      Note: If PATTERN contains extended regular expression metacharacters, it is interpreted as a regular expression  substring.   Other-
	      wise, PATTERN is interpreted as a literal word.

       -k, --key=STYLE
	      STYLE is one of `token', `pattern' or `none'

       -R, --result=STYLE
	      STYLE is one of `filenames', `grep', `edit' or `none'

       -S, --separator=STYLE
	      STYLE is one of `braces', `space' or `newline' and only applies to file names when `--result=filenames'

	      The above STYLE options control how query results are presented.	Defaults are --key=token --result=filenames --separator=space

       -F, --frequency=FREQ
	      find tokens that occur FREQ times, where FREQ is a range expressed as `N..M'.  If N is omitted, it defaults to 1, if M is omitted it
	      defaults to MAX_USHRT

       -a, --ambiguous=LEN
	      find tokens whose names are ambiguous for LEN chars

       -x, --hex
	      only find numbers expressed as hexadecimal

       -d, --decimal
	      only find numbers expressed as decimal

       -o, --octal
	      only find numbers expressed as octal

	      By default, searches match numbers of any radix.

       --help display this help and exit

       --version
	      output version information and exit

REPORTING BUGS

       Report bugs to bug-idutils@gnu.org

SEE ALSO

       The full documentation for eid is maintained as a Texinfo manual.  If the info and eid programs are properly installed at  your	site,  the
       command

	      info eid

       should give you access to the complete manual.

eid - 4.5							    August 2010 							    EID(1)
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