concat(3tcl) Tcl Built-In Commands concat(3tcl)__________________________________________________________________________________________________________________________________________________NAME
concat - Join lists together
SYNOPSIS
concat ?arg arg ...?
_________________________________________________________________DESCRIPTION
This command joins each of its arguments together with spaces after trimming leading and trailing white-space from each of them. If all
the arguments are lists, this has the same effect as concatenating them into a single list. It permits any number of arguments; if no args
are supplied, the result is an empty string.
EXAMPLES
Although concat will concatenate lists, flattening them in the process (so giving the following interactive session):
% concat a b {c d e} {f {g h}}
a b c d e f {g h}
it will also concatenate things that are not lists, as can be seen from this session:
% concat " a b {c " d " e} f"
a b {c d e} f
Note also that the concatenation does not remove spaces from the middle of values, as can be seen here:
% concat "a b c" { d e f }
a b c d e f
(i.e., there are three spaces between each of the a, the b and the c).
SEE ALSO append(3tcl), eval(3tcl), join(3tcl)KEYWORDS
concatenate, join, lists
Tcl 8.3 concat(3tcl)
Check Out this Related Man Page
lappend(3tcl) Tcl Built-In Commands lappend(3tcl)__________________________________________________________________________________________________________________________________________________NAME
lappend - Append list elements onto a variable
SYNOPSIS
lappend varName ?value value value ...?
_________________________________________________________________DESCRIPTION
This command treats the variable given by varName as a list and appends each of the value arguments to that list as a separate element,
with spaces between elements. If varName does not exist, it is created as a list with elements given by the value arguments. Lappend is
similar to append except that the values are appended as list elements rather than raw text. This command provides a relatively efficient
way to build up large lists. For example, "lappend a $b" is much more efficient than "set a [concat $a [list $b]]" when $a is long.
EXAMPLE
Using lappend to build up a list of numbers.
% set var 1
1
% lappend var 2
1 2
% lappend var 3 4 5
1 2 3 4 5
SEE ALSO list(3tcl), lindex(3tcl), linsert(3tcl), llength(3tcl), lset(3tcl), lsort(3tcl), lrange(3tcl)KEYWORDS
append, element, list, variable
Tcllappend(3tcl)
How would I delete white spaces in a specified file?
Also, I'd like to know what command I would use to take something off a regular expression, and put it onto another.
ie.
.
.
.
expression1 <take_off>
.
.
.
expression2 (put here)
.
.
.
Any help would be great, thanks! (10 Replies)
hi
I have a file, I need to concatenate depening on the no of columns i need to concatenate.
for example i need to concatenate field1,filed34,field2( no of columns is not always 3, it can be any number of fields)
concat.ksh field1 field34 field2
how to achieve this, is there any argv ,argc... (10 Replies)
I wanted an alias or program, lsd, that would show just the directories in a directory. My first take was this alias.
alias lsd='ls -d `find . -maxdepth 1 -type d -print | grep -v "^.$" | cut -c 3- `'
It worked fine until I got to directory names with spaces, so I moved it into a script so I... (13 Replies)
Hi All,
i have a zip file like the format
794051400123|COM|24|0|BD|R|99.98
794051413727|COM|11|0|BD|R|28.99
794051415622|COM|23|0|BD|R|28.99
883929004676|COM|0|0|BD|R|28.99
794051400123|MOM|62|0|BD|R|99.98
794051413727|MOM|4|0|BD|R|28.99
794051415622|MOM|80|0|BD|R|28.99
... (30 Replies)
hi
Someone can give me some clue or script in writing the below requirement
I am having 5 or 10 files of unix files which contain ^M charactes.
First we have to find ^M character and concat the line where it has broken and then we have to remove the ^M character from the uxix... (11 Replies)
We receive fixed width ASCII (not EBCIDIC) file from MF to UNIX server. We have trailing spaces in the file.
What happens during FTP transmission, those trailing spaces gets chopped off. Is there any option in FTP when to transfer file from mainframes to unix not to chop off those spaces? (14 Replies)
Hi,
I have a problem where I need to append few spaces(say 10 spaces) for each line in a file whose length is say(100 chars) and others leave as it is.
I tried to find the length of each line and then if the length is say 100 chars then tried to write those lines into another file and use a sed... (17 Replies)
Hello.
I'm not sure how I can get around this, or what I am doing wrong, but I need some help. :)
I want to do an select query looking like this:
SELECT venue, SUM( amount )
FROM IWD
WHERE venue = 'Foxy Hollow'
Unfortunately I need to have spaces in the names in these fields,
is... (10 Replies)
Hi folks,
I am facing problem when I concat variables with the string.
Value for 'JDBC_CLASSES' variable looks malformed (/classes12.zip2.0KAGES)
But, my expected result for 'JDBC_CLASSES' is
/opt/API-R111/PACKAGES/jdbc/ORACLE9.2.0/classes12.zip
Am I missing anything here?
My... (10 Replies)
I neead a script which converts low values to the spaces, When I used
sed -e 's/\x00/\x20/g' inputfile command it is removing the low values but not replacing it with spaces. Please help me. Its Uregent. Thanks
Sam (12 Replies)
hiii i have a file that contains spaces in the begining of a file till the middle the from there the txt would appear. hw can i remove those spaces and bring the text to the begining portion
file1
text starts from here (12 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)
Hello,
I have a table as shown below. I want to concatenate values in col2 and col3 based on a value in col4.
1 X Y A
3 Y Z B
4 A W B
5 T W A
If col4 is A, then I want to concatenate col3 with itself. Otherwise it should concateneate col2 with col3.
1 X Y YY
3 Y Z YZ... (10 Replies)
I would like to find an undetermined number of spaces and shorten them to one space. I am running Debian in mksh. Script running in #!/bin/sh. Sorry to not include all code. The program is too big and involves an online file... too much hassle to solve a simple issue.
Ex.,
I start with... (11 Replies)