root@conexch.UUCP (Larry Dighera) (02/03/89)
Is there a way to supress the newline at the end of awk's print output?
Given:
awk '{print $1}' filename
Where filename contains:
field1.1 field1.2
field2.1 field2.2
field3.1 field3.2
awk will print the first field of each record on a seperate line:
field1.1
field2.1
field3.1
Is there a way to cause each "$1" to be printed with a space delimiter instead,
such that the output would look like:
field1.1 field2.1 field3.1
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UUCP: ...!uunet!turnkey!conexch!root || ...!trwrb!ucla-an!conexch!rootjim@tiamat.fsc.com (Jim O'Connor) (02/05/89)
In article <21638@conexch.UUCP>, root@conexch.UUCP (Larry Dighera) writes: > Is there a way to supress the newline at the end of awk's print output? > Given: > awk '{print $1}' filename > Where filename contains: > field1.1 field1.2 > field2.1 field2.2 > field3.1 field3.2 > awk will print the first field of each record on a seperate line: > field1.1 > field2.1 > field3.1 > Is there a way to cause each "$1" to be printed with a space delimiter instead, awk ' {printf "%s ", $1} END { print }' filename should do the trick. The END action is needed or you won't get a newline at all. Just like printf() in the C library, the awk printf needs "\n" at the end of the format string if you want a newline. --jim
itkin@mrspoc.UUCP (Steven M. List) (02/05/89)
In article <21638@conexch.UUCP> root@conexch.UUCP (Larry Dighera) writes: > Is there a way to supress the newline at the end of awk's print output? > > Given: > > awk '{print $1}' filename >... > Is there a way to cause each "$1" to be printed... > such that the output would look like: > > field1.1 field2.1 field3.1 > Yup - use the "printf" function instead of "print". "printf" takes arguments like the C language function to permit more advanced formatting of your output. To solve this problem, use awk '{printf "%s ",$1}' filename This will print the first field of each record followed by a space. To include the newline at the end of the entire list, use the following variant: awk '{printf "%s ",$1}END{printf "\n"}' filename -- : Steven List @ Transact Software, Inc. : {apple,coherent,limbo,mips,pyramid,ubvax}!mrspoc!itkin : Voice: (415) 961-6112
pss@unh.UUCP (Paul S. Sawyer) (02/07/89)
In article <21638@conexch.UUCP>, root@conexch.UUCP (Larry Dighera) writes: > Is there a way to supress the newline at the end of awk's print output? > > Given: > > awk '{print $1}' filename > Try: awk '{ printf ("%s ", $1) }' filename (You would need awk '{ printf ("%s\n", $1) }' filename to equal the unformatted awk "print" statement) You can also do tricks with setting a variable to be a space for, say 5 input lines and a newline on the sixth for six column output. Awk is really quite versatile (even oawk), if you are stubborn enough!
rupley@arizona.edu (John Rupley) (02/07/89)
In article <21638@conexch.UUCP>, root@conexch.UUCP (Larry Dighera) writes: > Is there a way to supress the newline at the end of awk's print output? > Given: > awk '{print $1}' filename If you have the new awk == nawk: nawk 'BEGIN{ORS=" "}; {print $1}' filename John Rupley rupley!local@megaron.arizona.edu
matthew@sunpix.UUCP ( Sun NCAA) (02/08/89)
In article <21638@conexch.UUCP>, root@conexch.UUCP (Larry Dighera) writes: > Is there a way to supress the newline at the end of awk's print output? Try using awk's printf command. If you don't include a '\n' in the format specifier, non will be printed. awk '{printf "%s ", $1} filename > Is there a way to cause each "$1" to be printed with a space delimiter Notice space in above example. A '\t' could also be used to insert a tab. -- Matthew Lee Stier (919) 469-8300| Sun Microsystems --- RTP, NC 27560| "Wisconsin Escapee" uucp: {sun, rti}!sunpix!matthew |
uucibg@sw1e.UUCP (3929]) (02/09/89)
In article <388@greens.UUCP> matthew@sunpix.UUCP ( Sun NCAA) writes: >In article <21638@conexch.UUCP>, root@conexch.UUCP (Larry Dighera) writes: >> Is there a way to supress the newline at the end of awk's print output? > >Try using awk's printf command. If you don't include a '\n' in the format >specifier, non will be printed. > >awk '{printf "%s ", $1} filename > Also, in the body for a BEGIN pattern, you can set the output record separator to nothing via: BEGIN { ... ORS = "" ; ... } I know this works for the new awk, and I'm not sure but I believe that it's one of the undocumented features of the standard awk (Note however, that the currently standard 'awk' will become 'oawk' in SysV.4 and the current 'nawk' will become the standard 'awk'). Note also that you can change ORS anywhere in the awk program, not just in BEGIN clauses. This is nice if you want to save the current separator and temporarly use something different, restoring the original value after you're through. >> Is there a way to cause each "$1" to be printed with a space delimiter > >Notice space in above example. A '\t' could also be used to insert a tab. > Similar to ORS above, OFS is the output field separator and can be set to whatever you like (e.g. '... OFS = "<silly field separator string>" ...' ). >Matthew Lee Stier (919) 469-8300| >Sun Microsystems --- RTP, NC 27560| "Wisconsin Escapee" >uucp: {sun, rti}!sunpix!matthew | Brian R. Gilstrap Southwestern Bell Telephone One Bell Center Rm 17-G-4 ...!ames!killer!texbell!sw1e!uucibg St. Louis, MO 63101 ...!bellcore!texbell!sw1e!uucibg (314) 235-3929 #include <std_disclaimers.h>
steinar@fdmetd.uucp (Steinar Overbeck Cook) (02/10/89)
In article <21638@conexch.UUCP>, root@conexch.UUCP (Larry Dighera) writes: > Is there a way to supress the newline at the end of awk's print output? > > Given: > > awk '{print $1}' filename > Use this instead: awk '{ printf("%s", $1) }' -- Steinar Overbeck Cook, Fellesdata a.s, P.O. Box 248, 0212 OSLO 2, NORWAY Phone : +47 2 52 80 80 Fax : +47 2 52 85 10 E-mail : ...!mcvax!ndosl!fdmetd!steinar or steinar@fdmetd.uucp <The opinions expressed, if any, do not represent Fellesdata a.s>