I would like to ask you, how to print first and last row from input (not file).
I want to get first and last name of file from directory sorted by name, which contains files e.g:
ab.txt
fg.txt
bc.txt
and the output should be ab.txt and fg.txt.
I used something like this
and I try to get output like to print first and last line from file, but it gave me only one value instead of two values. Thank you for your help.
hi
im completely new at unix so dont hate me for asking what is probably the easiest question ever.
below is an extract of some data im processing. the first column is like a counter while the second is an ip address. i need to be able to output the ip address based on which has the largest... (4 Replies)
this works:
cat file.txt| awk 'NR==45,NR==55'
but how do I assign variables instead of numbers:
this does not work:
cat file.txt | awk 'NR==$start,NR==$end'
there need variables instead of numbers
Sorry for my English
Thank you for answer (3 Replies)
Hi all
I have file with columns
F3 pathway CPS
F2
H2
H4
H5
H6 no pathway CMP
H7
H8
H9
H10
My expected output is
F3 pathway CPS
F2 pathway CPS (10 Replies)
I have a spreadsheet of extremely long rows of numbers. I want to print only the last column. Tried using printf but there seems to be too many rows.
example:
3 100 34 7 23 0 8 ..... X
400 203 778 1 ..........Y
58 3 9 0 100 ..........Z
I only want to print X, Y and... (1 Reply)
I have this in a file
11.22.33.44
yyyyyyuser
With awk/sed, I need this to be output as follows
alias server.domain.com='ssh yyyyyyuser@11.22.33.44' (4 Replies)
Hi.
How can we print those rows of file2 which are mentioned in file1. first character of file1 is a row number.. for eg
file1
1:abc
3:ghi
6:pqr
file2
a abc
b def
c ghi
d jkl
e mno
f pqr
... (6 Replies)
Hi. How can I read row number from one file and print that corresponding record present at that row in another file.
eg
file1
1
3
5
7
9
file2
11111
22222
33333
44444
55555
66666
77777
88888
99999 (3 Replies)
this is the requirement
list.txt
table1
table2
table3
testfile.txt
name#place#data#select * from table1
name2#place2#data2#select * from table 10 innerjoin table3
name2#place2#data2#select * from table 10
output
name place table1
name2 place table3
i tried using awk (7 Replies)
pamdeinterlace(1) General Commands Manual pamdeinterlace(1)NAME
pamdeinterlace - remove ever other row from a PAM/PNM image
SYNOPSIS
pamdeinterlace [-takeodd] [-takeeven] N [infile]
You can use the minimum unique abbreviation of the options. You can use two hyphens instead of one. You can separate an option name from
its value with white space instead of an equals sign.
DESCRIPTION
pamdeinterlace Removes all the even-numbered or odd-numbered rows from the input PNM or PAM image. Specify which with the -takeeven and
-takeodd options.
This can be useful if the image is a video capture from an interlaced video source. In that case, each row shows the subject 1/60 second
before or after the two rows that surround it. If the subject is moving, this can detract from the quality of the image.
Because the resulting image is half the height of the input image, you will then want to use pamstretch or pnmscale to restore it to its
normal height:
pamdeinterlace myimage.ppm | pamstretch -yscale=2 >newimage.ppm
OPTIONS -takeodd
Take the odd-numbered rows from the input and put them in the output. The rows are numbered starting at zero, so the first row in
the output is the second row from the input. You cannot specify both -takeeven and -takeodd.
-takeeven
Take the even-numbered rows from the input and put them in the output. The rows are numbered starting at zero, so the first row in
the output is the first row from the input. This is the default. You cannot specify both -takeeven and -takeodd.
SEE ALSO pamstretch(1), pnmscale(1)AUTHOR
put by Bryan Henderson in the public domain in 2001
11 November 2001 pamdeinterlace(1)