04-19-2011
This bit of script can be put into a shell subroutine or subshell and will process lines as follows:
- Initialize two variables to zero, line number and file number,
- grep out the desired lines and pipe them to a while read loop.
- Increment the line number, and if it is 1, spit out a header using the date command + option (not echo and `date`) to a new file using the incremented file number in the entry name.
- Spit out the current line. (s/b >>)
- if this is line 25, spit out a trailer (s/b >>) and then zero the line counter.
- After the loop ends (EOF), if there is a partial file, add a trailer (using $ln).
It is good to start designing froun the outside in and with a high perspective, but then code in layers from the inside out. This is an inside bit to chop the files up as you asked.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I have a ksh which peocess and get me data from 3 days...
ie if i process it on jan 28.. it gets data for 25, 26 and 27.... the process run every day and get previous 3 days data...all this data is appened to a file lets call time.out
Now time.out cannot have deplicate data so what i want... (10 Replies)
Discussion started by: bhagya2340
10 Replies
2. UNIX for Dummies Questions & Answers
I have a file with follwing content
----------------------------------
SCHEDULE XXXXXXXXX#JOBCOUNT
ON EVERYDAY
AT 0000
PRIORITY 50
SCHEDULE XXXXXXXXX#ABCDEFGH
ON EVERYDAY
AT 0001
PRIORITY 29
SCHEDULE... (5 Replies)
Discussion started by: shreyas
5 Replies
3. Shell Programming and Scripting
All,
I am trying to figure out a script to run in windows that will allow me to match on First column in file1 to 8th Column in File2 then
Insert file1 column2 to file2 column4 then create a new file.
File1:
12345 Sam
12346 Bob
12347 Bill
File2:... (1 Reply)
Discussion started by: darkoth
1 Replies
4. Shell Programming and Scripting
Hi,
I have two files , one file with data file with attributes that need to be sent to another file to generate a predefined format.
Example:
File.txt
AP|{SSHA}VEEg42CNCghUnGhCVg==
APVG3|{SSHA}XK|"password"
AP3|{SSHA}XK|"This is test"
....
etc
---------
test.sh has... (1 Reply)
Discussion started by: hudson03051nh
1 Replies
5. Shell Programming and Scripting
Hi,
i have 2 input files which are file1.txt and file2.txt. I need to extract data from file1.txt and file2.txt and save it in file3.txt like example below:-
File1.txt
ID scrap1
Name scrap1
start 1
end 10
ID scrap2
Name scrap2
start 11
end ... (4 Replies)
Discussion started by: redse171
4 Replies
6. Shell Programming and Scripting
Hi All,
how can i edit my original data and add more data if my 2nd script outputs SUCESS?
ex.
input file:
1.txt
nik,is,the
1script.sh
if 2ndscript.sh output SUCCESS then i'm going to edit my input file and add data best,pogi..
sample outputdata.
nik,is,the,best,pogi
2ndscript.sh... (3 Replies)
Discussion started by: nikki1200
3 Replies
7. Shell Programming and Scripting
Hi Guys,
File A
I have File A as CSV Format....
No R SS MK Par value
S AL A1 PKL123 Lo12 1
S AL A2 PKl123 Lo34 22
S AL A3 PkLK234 Lo67 -34
S AL A4 PkLK235 Lo09 120
S AL A5 PkLK236 Lo76 19
S AL A6 PkLK237 Lo44 -17
S AL A7 PkLK238 Lo90 2
S AL A8 PkLK239 Lo34 -9
I want file B like... (4 Replies)
Discussion started by: asavaliya
4 Replies
8. Shell Programming and Scripting
The following code will split the infile into multiple files. However, I need it to insert the same first 3 lines from the original input file into each splitted file. How do I modify my script below to do so:
print -n "Enter file name to split? " ; read infile
if
then
echo "Invalid file... (4 Replies)
Discussion started by: mrn6430
4 Replies
9. Shell Programming and Scripting
The below awk improved bu @MadeInGermany, works great as long as the input file has data in it in the below format:
input
chrX 25031028 25031925 chrX:25031028-25031925 ARX 631 18
chrX 25031028 25031925 chrX:25031028-25031925 ARX 632 14... (3 Replies)
Discussion started by: cmccabe
3 Replies
10. Shell Programming and Scripting
Hi, I would like to seek your help for a script that will extract data from log file and put it in a file.
Sample log file
2018-10-23 12:33:21 AI ERROR -- tpid: SAMPLE_TH account: 123456789 aiSessionNumber: 660640464 mapName: xxx to yyy
errorDesc: Translation Error:ErrorNumber : 993 ... (2 Replies)
Discussion started by: neverwinter112
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)