04-19-2011
Awesome! Thanks Shell_Life, one thing though as I inserted these 4 characters my data shifted to the right 4 spaces. Anyway to do this without shifting the data over??
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have a file where some records have been updated the wrong way and need to fix it quickly since the amount can be alot.
Every record where any of the first 4 characters are in upper case need to be changed to lowercase.
Records can have '#' in position-1 for comments. These musn't be... (2 Replies)
Discussion started by: Browser_ice
2 Replies
2. Programming
how we can replace char with a string
example
char *a="a.s"
so finally
what i ant to do
raplace a with ant and s sree
so in my array a i want to store the value as "ant.sree"
thank u in advance (1 Reply)
Discussion started by: phani_sree
1 Replies
3. Shell Programming and Scripting
Hi
I'm trying to use awk in a file(test123.dat).
My requirement is to to check for the 65th position, if the 65th position is a space then replace the 65th position by the number 9.
This is the code that i used:
awk '{substr($0,65,1) ~ / / }{sub(substr($0,65,1),"9")}{print}' test123.dat
... (7 Replies)
Discussion started by: angelarosh
7 Replies
4. Shell Programming and Scripting
Hi all,
I am trying to find the best way of making a change to 1 char in a string, the string can be between 1 and 14 characters.
I am reading a line in from a file which contains
012341231231:2:102939283:NNN: Require :NBN:
012838238232:3:372932:NNN: Require :NNB:
I need to change 1 N or a... (8 Replies)
Discussion started by: nkwilliams
8 Replies
5. Shell Programming and Scripting
I need to list all files where 1rst column=ABK and char position 123 to 125=ZBK:
For the first part I can I can do a awk '{$1="ABK";print}' file and for the second a cut -c123-125 file | grep ZBK but this would only work partially..
How can I do this with only one awk command ?
Thanks in... (10 Replies)
Discussion started by: cabrao
10 Replies
6. Shell Programming and Scripting
hi,
i have a file with delimiter "þ" . how to read these delimiters filters like AWK and cut..:wall:
Thanks,
Soma (1 Reply)
Discussion started by: challamsomu
1 Replies
7. UNIX for Dummies Questions & Answers
Hi
I'm trying to remove what I "think" is a bad character. How I got the bad character is when I downloaded jpgs onto my PC and then renamed the files using windows explorer. In cygwin, the files look like
$ dir -l
total 7840
----------+ 1 None 3647968 Jul 21 08:41 2012-07-21\ (1).JPG... (6 Replies)
Discussion started by: SailingDreams
6 Replies
8. Shell Programming and Scripting
Hi experts,
Need your help on how to insert carriage return after the 10th char position of each line in a file and then add two blank spaces after the carriage return.
Example:
>cat test.txt
testingline
dummystring
samplesample
teststringline
Expected output should be..
... (2 Replies)
Discussion started by: brichigo
2 Replies
9. UNIX for Dummies Questions & Answers
Hi
I've a string . And i need to replace set of characters with a single character
Means .. or . or ... and so on should be replaced with single % character
Irrespective of number of dots in between the characters , those should be replaced with single %
All the above strings should be... (3 Replies)
Discussion started by: smile689
3 Replies
10. UNIX for Beginners Questions & Answers
Hello All,
I have a file as below . I want to convert the Y with numbers to H
From
4,
M11,
P2521759,
Y75,Y70,Y105,Y110,Y700,Y815,Y830,Y900,Y162,Y300,
Y291,Y290,Y15,Y20,
MR2716014,MR2617014,
Yesterday,current
1,201012,
102032,1
11112,0
to
4,
M11,
P2521759,... (2 Replies)
Discussion started by: arunkumar_mca
2 Replies
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)