05-10-2011
Quote:
Originally Posted by
Loic Domaigne
I guess, my previous example shows how to do it:
- it creates an empty map
- it fills the map step by step as the number are entered (until a negative number is given for stop).
- for the entered element, it adds 1 to the count.
Or am I missing something?
I don't think you're missing anything. A map lets you just use the element like a vector and will add it as zero if missing, or just update it if already present.
You have to use iterators to check what's inside it however, because the mere act of checking if m[element] will also create that element as a zero!
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi Gurus,
I am executing my Datastage jobs on UNIX operating System. While running the jobs i am getting the following error:
main_program: Unexpected termination by Unix signal 9(SIGKILL)
Can any one please let me know what are the possible situations where this SIGKILL will arrise?
... (9 Replies)
Discussion started by: choppas
9 Replies
2. Shell Programming and Scripting
i want a shell script program for how many times a word occur in a file.
i need not the line number but i want the counts of the particular word
for eg:-
hai how r u..
i am from andhra pradesh..
i am from tenali.i need this answer.i need it urgently..
i hope u will answer this ...
... (9 Replies)
Discussion started by: madhu.it
9 Replies
3. Shell Programming and Scripting
OS=HP-UX ksh
The following works, except I want to include the <start> and <end> in the output.
awk -F '<start>' 'BEGIN{RS="<end>"; OFS="\n"; ORS=""} {print $2} somefile.log'
The following work in bash but not in ksh
sed -n '/^<start>/,/^<end>/{/LABEL$/!p}' somefile.log (4 Replies)
Discussion started by: Ikon
4 Replies
4. Shell Programming and Scripting
I have a need to compare 2 files, then print results to file. Need to find items from file2 that are not found in file 1. thanks in advance!
example:
file 1:
abcde=12
fffff=6
bbbb=35
file2:
abcde=12
fffff=6
bbbb=35
ccccc=10
kkkkk=45 (8 Replies)
Discussion started by: discostu
8 Replies
5. Shell Programming and Scripting
To find out number of "|" symbol is available in file:
Input:
a|b|c|d|z
Ouput:
4
I am using below set of commands,It is working... Anybody have anyother solution using sed / awk.
cnt=`wc -c <1.txt`
cnt1=`tr -d "|" <1.txt >c.dat`
cnt2=`wc -c <c.dat`
outp=`expr $cnt... (19 Replies)
Discussion started by: Jairaj
19 Replies
6. UNIX for Dummies Questions & Answers
Hi all,
i create 2 file
Config
path1 5 group1
path2 6 group2
path3 10 group1
path4 15 group2
Confine
group1 andrew
group2 alan
In my C shell script i write like this:
set line_array = (`cat $app_dir/config`)
set line_array_2 =... (0 Replies)
Discussion started by: proghack
0 Replies
7. Shell Programming and Scripting
Hello,
I want to only print lines where variables occur more than once using grep.
For eg:
Input:
$this is a comment
int a,b,c,b;
int b,c;
int d,e;
int f,g,f;
x=y+5;
For the above input, the output would be
int a,b,c,b;
int f,g,f;
I have done grep... (3 Replies)
Discussion started by: prasanna1157
3 Replies
8. Shell Programming and Scripting
I'm a scripting newbie and I'm trying to learn. No better way than being assigned a project.
So basically, I'm trying to come up with a script that can periodically check a URL and then notify when changes occur to the file.
So what I'm thinking is that I need to devise a PERL script that... (3 Replies)
Discussion started by: adam1mc
3 Replies
9. Cybersecurity
Hello everyone. Upon reading the recent news about the NSA paying RSA to use a faulty cipher suite for it's default, it got me thinking... During a connection say for SSL, what is it that "knows" the rules for ciphers? Are these rules stored on the NIC? can they be edited, changed or appended? ... (3 Replies)
Discussion started by: Lost in Cyberia
3 Replies
lreplace(n) Tcl Built-In Commands lreplace(n)
__________________________________________________________________________________________________________________________________________________
NAME
lreplace - Replace elements in a list with new elements
SYNOPSIS
lreplace list first last ?element element ...?
_________________________________________________________________
DESCRIPTION
lreplace returns a new list formed by replacing one or more elements of list with the element arguments. first and last are index values |
specifying the first and last elements of the range to replace. The index values first and last are interpreted the same as index values |
for the command string index, supporting simple index arithmetic and indices relative to the end of the list. 0 refers to the first ele- |
ment of the list, and end refers to the last element of the list. If list is empty, then first and last are ignored.
If first is less than zero, it is considered to refer to before the first element of the list. For non-empty lists, the element indicated
by first must exist or first must indicate before the start of the list.
If last is less than first, then any specified elements will be inserted into the list at the point specified by first with no elements
being deleted.
The element arguments specify zero or more new arguments to be added to the list in place of those that were deleted. Each element argu-
ment will become a separate element of the list. If no element arguments are specified, then the elements between first and last are sim-
ply deleted. If list is empty, any element arguments are added to the end of the list.
EXAMPLES
Replacing an element of a list with another:
% lreplace {a b c d e} 1 1 foo
a foo c d e
Replacing two elements of a list with three:
% lreplace {a b c d e} 1 2 three more elements
a three more elements d e
Deleting the last element from a list in a variable:
% set var {a b c d e}
a b c d e
% set var [lreplace $var end end]
a b c d
A procedure to delete a given element from a list:
proc lremove {listVariable value} {
upvar 1 $listVariable var
set idx [lsearch -exact $var $value]
set var [lreplace $var $idx $idx]
}
SEE ALSO
list(n), lappend(n), lindex(n), linsert(n), llength(n), lsearch(n), lset(n), lrange(n), lsort(n), string(n) |
KEYWORDS
element, list, replace
Tcl 7.4 lreplace(n)