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Full Discussion: sed within awk statement
Top Forums Shell Programming and Scripting sed within awk statement Post 303010920 by Don Cragun on Wednesday 10th of January 2018 06:09:12 AM
Old 01-10-2018
I'm not an SQL expert, but still believe this could all be done in SQL without needing awk or sed. And, you showed us the output you said you want with <space> as a field separator and then say that you want the output to be a CSV file with <comma> as the field separator??? Assuming that your input is in a file named file and that you do want output with <comma> as the field separator, the following awk script seems to do what I think you want:
Code:
awk -F'|' '			# Invoke awk and set input field separator to "|".
{	gsub(/^ | $/, "", $2)	# Get rid of leading and trailing space in date
				# and convert input FS (|) to output FS (space).
	gsub(/ /, "-", $2)	# Convert spaces to hyphens in date.
	gsub(/ +/, ",")		# Convert strings of adjacent spaces to commas.
	gsub(/^,|,$/, "")	# Get rid of leading and trailing commas.
	print			# Print updated lines.
}' file				# Close awk script and specify input file.

If file contains the input you showed us in post #1 in this thread, this produces the output:
Code:
Jan-8-2018-11:28PM,24,75,51,1,1.600
Jan-8-2018-12:01PM,52,823,21,6,2.675

You haven't told us what operating system or shell you're using (which you should always do in threads in this forum so we can suggest solutions that will work in your environment). If you're using a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk or nawk.
This User Gave Thanks to Don Cragun For This Post:
 

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JOIN(1) 						      General Commands Manual							   JOIN(1)

NAME
join - relational database operator SYNOPSIS
join [ options ] file1 file2 DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If one of the file names is the standard input is used. File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in each line. There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con- sists of the common field, then the rest of the line from file1, then the rest of the line from file2. Input fields are normally separated spaces or tabs; output fields by space. In this case, multiple separators count as one, and leading separators are discarded. The following options are recognized, with POSIX syntax. -a n In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2. -v n Like -a, omitting output for paired lines. -e s Replace empty output fields by string s. -1 m -2 m Join on the mth field of file1 or file2. -jn m Archaic equivalent for -n m. -ofields Each output line comprises the designated fields. The comma-separated field designators are either 0, meaning the join field, or have the form n.m, where n is a file number and m is a field number. Archaic usage allows separate arguments for field designators. -tc Use character c as the only separator (tab character) on input and output. Every appearance of c in a line is significant. EXAMPLES
sort /etc/passwd | join -t: -1 1 -a 1 -e "" - bdays Add birthdays to the /etc/passwd file, leaving unknown birthdays empty. The layout of /adm/users is given in passwd(5); bdays con- tains sorted lines like tr : ' ' </etc/passwd | sort -k 3 3 >temp join -1 3 -2 3 -o 1.1,2.1 temp temp | awk '$1 < $2' Print all pairs of users with identical userids. SOURCE
/src/cmd/join.c SEE ALSO
sort(1), comm(1), awk(1) BUGS
With default field separation, the collating sequence is that of sort -b -ky,y; with -t, the sequence is that of sort -tx -ky,y. One of the files must be randomly accessible. JOIN(1)
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