I understand your idea. You have a list sorted by ID and you process one ID at a time. You assume that the file being processed is too large for the memory allocated for this. I want to note the script I proposed earlier allows you to process an unsorted list. And the limits of RAM are limited only by the system-wide but I would continue only for a sorted list...
Last edited by nezabudka; 03-28-2020 at 08:45 AM..
Hi all,
in my csv file it'll look like this, and of course it may have more columns
US to UK;abc-hq-jcl;multimedia
UK to CN;def-ny-jkl;standard
DE to DM;abc-ab-klm;critical
FD to YM;la-yr-tym;standard
HY to MC;la-yr-ytm;multimedia
GT to KJ;def-ny-jrt;critical
I would like to group... (4 Replies)
Hi guys!
I'm new to scripting and I need to write a script in awk.
Here is example of file on which I'm working
ATOM 4688 HG1 PRO A 322 18.080 59.680 137.020 1.00 0.00
ATOM 4689 HG2 PRO A 322 18.850 61.220 137.010 1.00 0.00
ATOM 4690 CD ... (18 Replies)
Hi ,
Below is my sample data,I have this 8 column(A,B,C,D,E,F,G,H) in csv file.
A , B ,C ,D ,E ,F,G ,H
4141,127337,24,15,20,69,72.0,-3
4141,128864,24,15,20,65,66.0,-1
4141,910053,24,15,4,4,5.0,-1
4141,910383,24,15,22,3,4.0,-1
4141,496969,24,15,14,6,-24.0,-18... (7 Replies)
Hello Experts,
I have got a txt files which has multiple columns, I want to get the max, min and diff (max-min) for each column in the same txt file. Example:
cat file.txt
a 1 4
b 2 5
c 3 6
I want ouput like:
cat file.txt
a 1 4
b 2 5
c 3 6
Max 3 6
Min 1 4
Diff 2 2
awk 'min=="" ||... (4 Replies)
Hi guys,
I already search on the forum but i can't solve this on my own.
I have a lot of files like this:
And i need to print the line with the maximum value in last column but if the value is the same (2 in this exemple for the 3 last lines) i need get the line with the minimum value in... (4 Replies)
a,b,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,aa,bb,cc,dd,ee,ff,gg,hh,ii
a thru ii are digits and strings....
The awk needed....if coloumn 9 == i (coloumn 9 is string ), output the sum of x's(coloumn 22 ) in all records and sum of y's (coloumn 23 ) in all records in a file (records.txt).... (6 Replies)
Gents,
I have a big file file like this.
5100010002
5100010004
5100010006
5100010008
5100010010
5100010012
5102010002
5102010004
5102010006
5102010008
5102010010
5102010012
The file is sorted and I would like to find the min and max value, taking in the consideration key1... (3 Replies)
I have to ascend the number of two selected columns by horizontal manner.
For example, I have a data like this in csv file (tab delimited format)
08 1 19185 18010
16 4 7960 9339
01 6 516769 517428
09 9 51384 49270
I need to ascend the two columns numbers (horizontal manner) like as... (5 Replies)
Discussion started by: dineshkumarsrk
5 Replies
LEARN ABOUT OPENDARWIN
lsearch
lsearch(n) Tcl Built-In Commands lsearch(n)
__________________________________________________________________________________________________________________________________________________NAME
lsearch - See if a list contains a particular element
SYNOPSIS
lsearch ?options? list pattern
_________________________________________________________________DESCRIPTION
This command searches the elements of list to see if one of them matches pattern. If so, the command returns the index of the first match-
ing element (unless the options -all or -inline are specified.) If not, the command returns -1. The option arguments indicates how the |
elements of the list are to be matched against pattern and it must have one of the following values:
-all Changes the result to be the list of all matching indices (or all matching values if -inline is specified as well.) |
-ascii The list elements are to be examined as Unicode strings (the name is for backward-compatability reasons.) This option is only mean-
ingful when used with -exact or -sorted.
-decreasing
The list elements are sorted in decreasing order. This option is only meaningful when used with -sorted.
-dictionary
The list elements are to be compared using dictionary-style comparisons. This option is only meaningful when used with -exact or
-sorted.
-exact The list element must contain exactly the same string as pattern.
-glob Pattern is a glob-style pattern which is matched against each list element using the same rules as the string match command.
-increasing
The list elements are sorted in increasing order. This option is only meaningful when used with -sorted.
-inline
The matching value is returned instead of its index (or an empty string if no value matches.) If -all is also specified, then the |
result of the command is the list of all values that matched.
-integer
The list elements are to be compared as integers. This option is only meaningful when used with -exact or -sorted.
-not This negates the sense of the match, returning the index of the first non-matching value in the list. |
-real The list elements are to be compared as floating-point values. This option is only meaningful when used with -exact or -sorted.
-regexp
Pattern is treated as a regular expression and matched against each list element using the rules described in the re_syntax refer-
ence page.
-sorted
The list elements are in sorted order. If this option is specified, lsearch will use a more efficient searching algorithm to search
list. If no other options are specified, list is assumed to be sorted in increasing order, and to contain ASCII strings. This
option is mutually exclusive with -glob and -regexp, and is treated exactly like -exact when either -all, or -not is specified.
-start index
The list is searched starting at position index. If index has the value end, it refers to the last element in the list, and |
end-integer refers to the last element in the list minus the specified integer offset.
If option is omitted then it defaults to -glob. If more than one of -exact, -glob, -regexp, and -sorted is specified, whichever option is
specified last takes precedence. If more than one of -ascii, -dictionary, -integer and -real is specified, the option specified last takes
precedence. If more than one of -increasing and -decreasing is specified, the option specified last takes precedence.
EXAMPLES |
lsearch {a b c d e} c => 2 |
lsearch -all {a b c a b c} c => 2 5 |
lsearch -inline {a20 b35 c47} b* => b35 |
lsearch -inline -not {a20 b35 c47} b* => a20 |
lsearch -all -inline -not {a20 b35 c47} b* => a20 c47 |
lsearch -all -not {a20 b35 c47} b* => 0 2 |
lsearch -start 3 {a b c a b c} c => 5 |
SEE ALSO
foreach(n), list(n), lappend(n), lindex(n), linsert(n), llength(n), lset(n), lsort(n), lrange(n), lreplace(n) |
KEYWORDS
list, match, pattern, regular expression, search, string
Tcl 8.4 lsearch(n)