Thanks the one liner works like a charm. I won't be able to figure out for ages that this will do what I want It doesn't even requires any intermediate files.
Trying real hard to understand what's happening though.
this splits $2 and assign it T I believe and then some more processing happens.
Then
change $2 to be
if it is not a[$0]? Is that what
means and this is the one that prevents the duplicates? Do I understand it correctly?
Hi,
Let's say that I have a file called table, I know that if I need to see a the second column for exampls I use:
awk ' {print $2}' table.txt
Is there anyway to use awk to actually cut a column and put it somewhere else in the table?:confused: (8 Replies)
Hi i need a favour
i have a file which has some trillions of records. The file is like this
11111000000000192831840914000000000000000000000000000
45789899090000000000000000011111111111111111111111111
I want to cut specific postions in each line like cut1-3 and assisgn it to a variable and... (5 Replies)
hi,
I have a file with content like this for an employee:
EmployeeID
101
Day_type, day
vacation,1/2/2009
sick day, 3/2/2009
personal day, 4/5/2009
jury duty day, 5/5/2009
how do I make the result to show:
EmployeeID,Day_type,day
101,vacation,1/2/2009
101,sick day,... (6 Replies)
Hello,
I had posted earlier about printing fields using AWK, but now I have a slightly different problem. I have text files in the format:
1*2,3,4,5
and wish to print the first, third, and fifth fields, including the asterisk and commas. In other words, after filtering it should look... (1 Reply)
Hi,
Need a help with shell script. I have to search for a string in one of the file, if match found, copy the line to a new file and delete the line from the exisiting file.
eg:
83510000000000063800000.1800000.1600000.1600000.2400000.1800000.2000000.21... (6 Replies)
Hi,
I've got a query regarding which of the following is more efficient & why -
cat <filename>|cut -d'*' -f2- > <newfilename>
or
cut -d'*' -f2- <filename> > <newfilename>
Thanks. (17 Replies)
I have a file which contains 3 fields separated by tabs example
andrew kid baker
I need to swap kid and baker using cut and paste commands how is this to be done?
Thanks (3 Replies)
i have file as with the below content
aaa.bbb.cc.dd
aaa.fff.bb
yyyyy.rrrrr.ggggg.iii
wwww.w.r.ty
i want the o/p as below
dd
bb
iii
ty
but i dont want to use awk. is there any other way to do this ? (5 Replies)
Discussion started by: anandgodse
5 Replies
LEARN ABOUT ULTRIX
paste
paste(1) General Commands Manual paste(1)Name
paste - merge file data
Syntax
paste file1 file2...
paste -dlist file1 file2...
paste -s [-dlist] file1 file2...
Description
In the first two forms, concatenates corresponding lines of the given input files file1, file2, etc. It treats each file as a column or
columns of a table and pastes them together horizontally (parallel merging).
In the last form, the command combines subsequent lines of the input file (serial merging).
In all cases, lines are glued together with the tab character, or with characters from an optionally specified list. Output is to the
standard output, so it can be used as the start of a pipe, or as a filter, if - is used in place of a file name.
Options
- Used in place of any file name, to read a line from the standard input. (There is no prompting).
-dlist Replaces characters of all but last file with nontabs characters (default tab). One or more characters immediately following -d
replace the default tab as the line concatenation character. The list is used circularly, i. e. when exhausted, it is reused. In
parallel merging (i. e. no -s option), the lines from the last file are always terminated with a new-line character, not from the
list. The list may contain the special escape sequences:
(new-line), (tab), \ (backslash), and (empty string, not a null
character). Quoting may be necessary, if characters have special meaning to the shell (for example, to get one backslash, use
-d"\\" ).
Without this option, the new-line characters of each but the last file (or last line in case of the -s option) are replaced by a
tab character. This option allows replacing the tab character by one or more alternate characters (see below).
-s Merges subsequent lines rather than one from each input file. Use tab for concatenation, unless a list is specified with -d
option. Regardless of the list, the very last character of the file is forced to be a new-line.
Examples
ls | paste -d" " -
list directory in one column
ls | paste - - - -
list directory in four columns
paste -s -d"
" file
combine pairs of lines into lines
Diagnostics
line too long
Output lines are restricted to 511 characters.
too many files
Except for -s option, no more than 12 input files may be specified.
See Alsocut(1), grep(1), pr(1)paste(1)