Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

concat(ntcl) [osx man page]

concat(n)						       Tcl Built-In Commands							 concat(n)


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(n), eval(n), join(n) KEYWORDS
concatenate, join, lists Tcl 8.3 concat(n)

Check Out this Related Man Page

list(3tcl)						       Tcl Built-In Commands							list(3tcl)


list - Create a list SYNOPSIS
list ?arg arg ...? _________________________________________________________________ DESCRIPTION
This command returns a list comprised of all the args, or an empty string if no args are specified. Braces and backslashes get added as necessary, so that the lindex command may be used on the result to re-extract the original arguments, and also so that eval may be used to execute the resulting list, with arg1 comprising the command's name and the other args comprising its arguments. List produces slightly different results than concat: concat removes one level of grouping before forming the list, while list works directly from the original arguments. EXAMPLE
The command list a b "c d e " " f {g h}" will return a b {c d e } { f {g h}} while concat with the same arguments will return a b c d e f {g h} SEE ALSO
lappend(3tcl), lindex(3tcl), linsert(3tcl), llength(3tcl), lrange(3tcl), lrepeat(3tcl), lreplace(3tcl), lsearch(3tcl), lset(3tcl), | lsort(3tcl) KEYWORDS
element, list Tcl list(3tcl)
Man Page

15 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Concatenate all the files in folder on timestamps

Hi Gurus, Experts, I am facing a problem to concatenate all the files based on timeStamps. The Problem is like this . The are many files in a folder Which are of the below types Ack_to_MDS_20070809141159.xml Ack_to_MDS_20070809141157.xml Ack_to_MDS_20070809141155.xml... (19 Replies)
Discussion started by: srikanthgr1
19 Replies

2. Shell Programming and Scripting

concatenate all duplicate line in a file.

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)
Discussion started by: vaskarbasak
30 Replies

3. UNIX for Dummies Questions & Answers

selective concatenation of rows & columns

Dear unix gurus, I have a data file that looks something like this ... x y x y x y x y x y 0 3836 30 3915 60 5984 90 7388 120 8385 150 9038 180 9453 210 9745 240 9906 270 9962 300 9953 330 9915 350 9887 ... (22 Replies)
Discussion started by: tintin72
22 Replies

4. Shell Programming and Scripting

Concatenating column values with unique id into single row

Hi, I have a table in Db2 with data say id_1 phase1 id_1 phase2 id_1 phase3 id_2 phase1 id_2 phase2 I need to concatenate the values like id_1 phase1,phase2,phase3 id_2 phase1,phase2 I tried recursive query but in vain as the length of string to be concatenated in quite long. ... (17 Replies)
Discussion started by: jsaravana
17 Replies

5. Shell Programming and Scripting

Getting multiple messy lines into one single line

I have a file that contains the following: :@:176:@:4:@:name:@:file:@:this is a summary:@:description can be long but who knows can even have <br> tags.:@:how to:@:type:@:18544:@:550:@:400:END: :@:177:@:9:@:name:@:file:@:summary:@:this will containg... (18 Replies)
Discussion started by: sysrenan
18 Replies

6. Shell Programming and Scripting

Splitting Concatenated Words in Input File with Words from a Master File

Hello, I have a complex problem. I have a file in which words have been joined together: Theboy ranslowly I want to be able to correctly split the words using a lookup file in which all the words occur: the boy ran slowly slow put child ly The lookup file which is meant for look up... (21 Replies)
Discussion started by: gimley
21 Replies

7. Shell Programming and Scripting

Splitting Concatenated Words With Largest Strings First

hello, I had posted earlier help for a script for splitting concatenated words . The script was supposed to read words from a master file and split concatenated words in the slave/input file. Thanks to the help I got, the following script which works very well was posted. It detects residues by... (14 Replies)
Discussion started by: gimley
14 Replies

8. UNIX for Dummies Questions & Answers

Getting non unique lines from concatenated files

Hi All, Is there a way to get NON unique lines from 2 or more concatenated files? Basically I have several files which are very similar with the exception of few lines and I want to find out which lines are different in each file. Very simple example is file1 contains: 1 2 3 4 5file2... (122 Replies)
Discussion started by: pawannoel
122 Replies

9. Shell Programming and Scripting

Need to concatenate spuriously separated lines

Given the pattern below: 3113296571|NULL|NULL|NULL||N| 1| 0| 926667| 1001036| 0| 3076120438|NULL|NULL|NULL|NULL|DUE FOR NEW CONSENT!|N|NULL| 10198318|2011-07-25-|NULL|NULL|NULL| 0 3113336478|NULL|NULL|NULL||N| 1| ... (16 Replies)
Discussion started by: lemele
16 Replies

10. Shell Programming and Scripting

Help cannot concatenate Ksh variables ?

Cannot combine these two strings into one line, either as a 3rd variable or echo or printing ? Frustrating. for i in `cat /scripts/pathList.dat` do OldRepo= grep Oldhostname ${i}/.svn/entries | tail -1 NewRepo= grep Oldhostname ${i}/.svn/entries | tail -1 | sed '/Oldhostname/... (41 Replies)
Discussion started by: pcpinkerton
41 Replies

11. Fedora

Concatenate Numerous Files

Hey! I wanted to find a text version of the Bible for purposes of grepping. The only files I could find, (in the translation I wanted), were Old Testament.txt and New Testament.txt. I thought, "fine, I'll just concatenate those two, no problemo." But when I unpacked them, turns out they had each... (22 Replies)
Discussion started by: sudon't
22 Replies

12. Shell Programming and Scripting

Look up 2 files and print the concatenated output

file 1 Sun Mar 17 00:01:33 2013 submit , Name="1234" Sun Mar 17 00:01:33 2013 submit , Name="1344" Sun Mar 17 00:01:33 2013 submit , Name="1124" .. .. .. .. Sun Mar 17 00:01:33 2013 submit , Name="8901" file 2 Sun Mar 17 00:02:47 2013 1234 execute SUCCEEDED Sun Mar 17... (24 Replies)
Discussion started by: aravindj80
24 Replies

13. Shell Programming and Scripting

How to concatenate the files based upon the file name?

Hi Experts, I am trying to merge multiple files into one file based upon the file name. Testreport_Server1.txt ============ MonitoringReport_Server1.txt============ CentralReport_Server1 Here two files containing server1 should be merged into one file? How can i do... (16 Replies)
Discussion started by: sharsour
16 Replies

14. Shell Programming and Scripting

Concatenate strings

Hi,I'm trying to concatenate to each line of a file f1.txt. and push it into f2.txt. Here is the code i'm using. for i in `cat /home/linux1/xxxxxxx/f1.txt`; do echo ${i} > /home/linux1/xxxxxx/f2.txt; done But above code only printing in f2.txt. what... (18 Replies)
Discussion started by: sam_bd
18 Replies

15. Shell Programming and Scripting

Concatenate broken rows

I need to concatenate the rows that are broken (because of carriage return and line feed) in unix. Input 123|456|789|"" 987|786|"GRT "|"" 3455|896|654|456|"" 457|234|"RT"|"PR TY"|"" Output 123|456|789|"" 987|786|"GRT"|"" 3455|896|654|456|"" 457|234|"RT"|"PRTY"|"" (16 Replies)
Discussion started by: meet_calramz
16 Replies