Hi all,
may seem a very stupid question.but me stuck up in it for long....
How to find the number of columns in a ASCII file.
EX:-Demo.lst
songs 1 34 45 67
Number of columns should be 5.
Regards,
Anindya
;) (13 Replies)
This should follow with my last post but I think it's better to start a new one. Now I have a list of numbers stored in pos.txt:
2
6
7
.
.
.
n
.
.
.
And I need to extract (2n-1, 2n) columns from matrix.txt:
ind1 A B C D E F G H I J K L M N O P Q R ...
ind2 B C D E F G H... (3 Replies)
Hi,
I have a file1.txt like this:
and a file2.txt like this:
I wat only append file2.txt to file1.txt
and to have something like this:
How could i do ? (2 Replies)
Hi all,
I want the 2nd column of every file in the directory in a single file with the file name as column header.
$cat file1.txt
a b c
d e f
$cat file2.txt
f g h
g h j
$cat file3.txt
a b d
f g h (2 Replies)
hi all
could you please help me to concatenate two colomns and separate them by "-"
the two colomns to concatenate are colomuns 1 and 3 of a very bif file
clomn 1 is chr, 2 is snp and 3 is bp
the new colomn is chr_B
input file :
1 rs1111 10583
1 rs1891 10611
1 rs1807 ... (13 Replies)
How to find the number of columns in xml file.
i tried following command.
Code:
#!bin/ksh
cat $1 | grep -c "</mdm:attribute>"exit 0but i am not getting accurate result which is not matching with the manual count.
data format :
Code:
<mdm:attribute> value </mdm:attribute>
No... (1 Reply)
How to find the number of columns in xml file.
i tried following command.
#!bin/ksh
cat $1 | grep -c "</mdm:attribute>"
exit 0
but i am not getting accurate result which is not matching with the manual count.
data format :
<mdm:attribute> value </mdm:attribute> (6 Replies)
I have a CSV file that goes like this:
Name,Group,Email
Max,Group1,max@.com
Dan,Group2,dan@.com
Max,Group3,max@.com
Max,Group4,max@.com
Dan,Group5,dan@.com
Jim,Group6,jim@.comBasically my desired output should be:
Name,Group,Email
Max,Group1|Group3|Group4,max@.com... (6 Replies)
Hello,
I want to concatenate 2-columns by 2-columns separated by colon. How can I do so? For example, I have a text file containing 6 columns separated by tab. I want to concatenate column 1 and 2; column 3 and 4; column 5 and 6, respectively, and put a colon in between.
input file:
1 0 0 1... (10 Replies)
Hi
i am having one requirement like to concatenate two columns in to one columns, can any one help on this please sample scenario i am placing below
COL1,COL2,COL3,COL4
1,A,B,C,D
2,e,f,g,h
ouput should be 3 columns like below.
COL1,COL2,newcolumns
1,A,B,CD
2,e,f,gh
... (9 Replies)
Discussion started by: bhaskar v
9 Replies
LEARN ABOUT OSX
split
split(n) Tcl Built-In Commands split(n)
__________________________________________________________________________________________________________________________________________________NAME
split - Split a string into a proper Tcl list
SYNOPSIS
split string ?splitChars?
_________________________________________________________________DESCRIPTION
Returns a list created by splitting string at each character that is in the splitChars argument. Each element of the result list will con-
sist of the characters from string that lie between instances of the characters in splitChars. Empty list elements will be generated if
string contains adjacent characters in splitChars, or if the first or last character of string is in splitChars. If splitChars is an empty
string then each character of string becomes a separate element of the result list. SplitChars defaults to the standard white-space char-
acters.
EXAMPLES
Divide up a USENET group name into its hierarchical components:
split "comp.lang.tcl.announce" .
-> comp lang tcl announce
See how the split command splits on every character in splitChars, which can result in information loss if you are not careful:
split "alpha beta gamma" "temp"
-> al {ha b} {} {a ga} {} a
Extract the list words from a string that is not a well-formed list:
split "Example with {unbalanced brace character"
-> Example with {unbalanced brace character
Split a string into its constituent characters
split "Hello world" {}
-> H e l l o { } w o r l d
PARSING RECORD-ORIENTED FILES
Parse a Unix /etc/passwd file, which consists of one entry per line, with each line consisting of a colon-separated list of fields:
## Read the file
set fid [open /etc/passwd]
set content [read $fid]
close $fid
## Split into records on newlines
set records [split $content "
"]
## Iterate over the records
foreach rec $records {
## Split into fields on colons
set fields [split $rec ":"]
## Assign fields to variables and print some out...
lassign $fields
userName password uid grp longName homeDir shell
puts "$longName uses [file tail $shell] for a login shell"
}
SEE ALSO
join(n), list(n), string(n)
KEYWORDS
list, split, string
Tcl split(n)