03-17-2017
I would suggest using csplit instead. It allows you to split a file based on a condition.
Make sure that the target directory for the files is empty before you start to make working through them/cleaning up easier later.
Does this help?
Robin
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have a file that will sometimes contain a pattern. The pattern is this:
W/D FRM CHK 00
I want to find any lines with this pattern, delete those lines, and also delete the line above and the line below. (1 Reply)
Discussion started by: nickg
1 Replies
2. Shell Programming and Scripting
This is my first post, please be nice. I have tried to google and read different tutorials.
The task at hand is:
Input file input.txt (example)
abc123defhij-E-1234jslo
456ujs-W-abXjklp
From this file the task is to grep the -E- and -W- strings that are unique and write a new file... (5 Replies)
Discussion started by: TestTomas
5 Replies
3. Shell Programming and Scripting
Hello
I am looking to have a script that performs some tasks for find and replace and inserts a line as well. I have done some programming 10 years ago, so it is causing me a little grief.
File consists of 2500 records. I will show you a sample consisting of two records below and what needs... (3 Replies)
Discussion started by: cdc01
3 Replies
4. Shell Programming and Scripting
hello I'm doing a unix program and i'm using many file csv.in each csv file the colums are separated by ";" I would like to know the position of a pattern. For example for a line yyyy, bbbb, cccc; ddddd;eeee. I will like for example by finding the position of the pattern "cccc" and the response is... (6 Replies)
Discussion started by: papis
6 Replies
5. Shell Programming and Scripting
Hi,
I have a file with text like this
.SET WIDTH 10000
.SET MAXERROR 1
insert into new_db
SELECT
*
FROM
some_db
;
+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-
.SET WIDTH 10000... (3 Replies)
Discussion started by: sol_nov
3 Replies
6. UNIX for Dummies Questions & Answers
How can I recursively find all files in a directory and print out the file and first line number of any text blocks that match the below cases?
This would seem to involve find, xargs, *grep, regex, etc.
In summary, I want to find so-called empty "try-catch blocks" that do not contain code... (0 Replies)
Discussion started by: lifechamp
0 Replies
7. Shell Programming and Scripting
I have a file with data records separated by multiple equals signs, as below.
==========
RECORD 1
==========
RECORD 2
DATA LINE
==========
RECORD 3
==========
RECORD 4
DATA LINE
==========
RECORD 5
DATA LINE
==========
I need to filter out all data from this file where the... (2 Replies)
Discussion started by: Finja
2 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I am able to get next line if it is matching a particular pattern. But i need a way to skip if next line also matches same pattern..
For example:
No Records
No Records
Records found
got it
Records found
Now i want to find 'Records found' after 'No Records' pattern matches..
... (5 Replies)
Discussion started by: nagpa531
5 Replies
9. Shell Programming and Scripting
Hi,
I have a log file which has sessionids in it, each block in the log starts with a date entry, a block may be a single line or multiple lines. I need to sed (or awk) out the lines/blocks with that start with a date and include the session id.
The files are large at several Gb.
My... (3 Replies)
Discussion started by: andyatit
3 Replies
10. Shell Programming and Scripting
Dear Unix Forums,
I am hoping you can help me with a pattern matching problem.
What am I trying to do?
I want to replace multiple lines of a text file (that match a multi-line pattern) with a single line of text. These patterns can span several lines and do not always have the same number of... (10 Replies)
Discussion started by: thefang
10 Replies
LEARN ABOUT ULTRIX
csplit
csplit(1) General Commands Manual csplit(1)
Name
csplit - context split
Syntax
csplit [ -s ] [ -k ] [ -f prefix ] file arg1 [ ...argn ]
Description
The command reads file and separates it into n+1 sections, as defined by the arguments arg1...argn. By default, the sections are placed in
xx00...xxn (n may not be greater than 99). The named file is sectioned in the following way:
00: From the start of file up to (but not including) the line referenced by arg1.
01: From the line referenced by arg1 up to the line referenced by arg2.
.
.
.
n: From the line referenced by argn to the end of file.
If the file argument is a minus (-) then standard input is used. A minus is an ASCII octal 055.
Options
-s Suppresses the printing of all character counts. If the -s option is omitted, the command prints the character counts
for each file created.
-k Leaves previously created files intact. If the -k option is omitted, automatically removes created files if an error
occurs.
-fprefix Names the created files prefix00...prefixn. The default is xx00...xxn.
The arguments (arg1...argn) to can be a combination of the following:
/rexp/[offset] A file is created for the section from the current line up to (but not including) the line containing the regular
expression rexp. The current line becomes the line containing rexp. The optional offset is plus (+) or minus
(-) the number of lines. For example, /Page/-5.
%rexp%[offset] This argument is the same as /rexp/[offset], except that no file is created for the section.
lnno A file is created from the current line up to (but not including) lnno. The current line becomes lnno.
{num} Repeat argument. This argument may follow any of the above arguments. If it follows a rexp argument, that argu-
ment is applied num more times. If it follows lnno, the file will be split every lnno lines (num times) from
that point.
Enclose all rexp type arguments that contain blanks or other characters meaningful to the Shell in the appropriate quotes. Regular expres-
sions should not contain embedded new-lines. The command does not affect the original file; it is the user's responsibility to remove it.
Examples
csplit -f cobol file /procedure division/ /par5./ /par16./
This example creates four files, cobol00...cobol03. After editing the files that created, they can be recombined as follows:
cat cobol0[0-3] > file
Note that this example overwrites the original file.
csplit -k file 100 {99}
This example splits the file every 100 lines, up to 10,000 lines. The -k option causes the created files to be retained if there are less
than 10,000 lines; however, an error message would still be printed.
csplit -k prog.c '%main(%' '/^}/+1' {20}
Assuming that follows the normal C coding convention of ending routines with a right brace (}) at the beginning of the line, this example
creates a file containing each separate C routine (up to 21) in
Diagnostics
The diagnostics are self explanatory except for the following:
arg - out of range
This message means that the given argument did not reference a line between the current position and the end of the file.
See Also
ed(1), sh(1)
csplit(1)