To select all lines from beginning of the file up to but not including a specific line:
If you want all lines up to and including the specific line:
Identification of the termination line is being done by looking for "string" in the entire line, but this can be whatever you need, such as checking the nth word on the line etc.
If you want to select groups of lines beginning with a line that contains "start" and through a line that contains "end":
That would also get a partial group of lines, starting with a line that contains "start" and terminating with end-of-file.
I have gone through all the threads in the forum and tested out different things. I am trying to split a 3GB file into multiple files. Some files are even larger than this.
For example:
split -l 3000000 filename.txt
This is very slow and it splits the file with 3 million records in each... (10 Replies)
Hi all,
I have a binary file (orig.dat) and two special delimiter strings 'AAA' and 'BBB'. My binary file's content is as follow:
<Data1.1>AAA<Data1.2>BBB
<Data2.1>AAA<Data2.2>BBB
...
<DataN.1>AAA<DataN.2>BBB
DataX.Y might have any length, and contains any kind of special/printable... (1 Reply)
Hi,
if i use this code
awk '/String/{n++}{print > f n}' f=file input
I get "input" splited this way
file1
String
1515
1354
2356
file 2
String
4531
0345
5345 (3 Replies)
Hello,
I am quite new in shell, and would like to pick up information in a file.
The file structure is like this faor all data:
T 50 2 2.5 is this a candy number color price
I know how to pick up a line. I do this:
head -linenumber candyfile.doc | tail -1
But I would... (6 Replies)
Hi Experts.
I'm stuck with the below AWK code where i'm trying to move the records containing any special characters in the last field to a bad file.
awk -F, '{if ($NF ~ /^|^/) print >"goodfile";else print >"badfile"}' filename
sample data
1,abc,def,1234,A *
2,bed,dec,342,* A ... (6 Replies)
hi,
i am trying to write a script to generate ouput in the following format:
##### buildappi abcd_sh nodebug.#####
##### buildappi ijk_sh nodebug.#####
The given string is as follows:
xtopSharedDLLs = "abcd_sh def_sh ijk_sh " \
+ "jkl_sh any_sh... (15 Replies)
Hi,
I need to split a file based on last occurece of a string. PFB the explanation
I have a file in following format
aaaaaaaaaaaaaaaaaaaaaaaaaaa
bbbbbbbbbbbbbbbbbbbbbbbbbbb
ccccccccccccccccccccccccccc
ddddddddddddddddddddddddddd
3186rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr... (4 Replies)
Hello
What command can i use to split a tab delimited txt file into two files base on the occurrence of a string
my file name is EDIT.txt
The content of file is below
XX 1234 PROCEDURES
XY 1634 PROCEDURES
XM 1245 CODES
XZ 1256 CODES
It has more than a million record
If there is... (16 Replies)
hi ,
The scenario is like this,
i have a large text files (max 5MB , about 5000 file per day ),
Inside almost each line of this file there is a tag 3100.2.22.1 (represent Call_Type) , i need to generate many filess , each one with distinct (3100.2.22.1 Call_Type ) , and one more file to... (3 Replies)
I have a unix file text.txt with below content
aaaaa
bbbbbbb
cccccccccc
As of 2013
ddddddddd
eeeeeeeeee
eeeeeeeee
fffffffff
As of 2014
gggggggggggg
hhhhhhhhh
iiiiiiiiiiiiiiii
As of 2016
Now I've to split this file with each file ending with line 'As of' . Please suggest how can I do... (6 Replies)
Discussion started by: Steven77
6 Replies
LEARN ABOUT DEBIAN
plan9-grep
GREP(1) General Commands Manual GREP(1)NAME
grep, g - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
g [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines that match the pattern, a regular expression as defined in regexp(7) with
the addition of a newline character as an alternative (substitute for |) with lowest precedence. Normally, each line matching the pattern
is `selected', and each selected line is copied to the standard output. The options are
-c Print only a count of matching lines.
-h Do not print file name tags (headers) with output lines.
-e The following argument is taken as a pattern. This option makes it easy to specify patterns that might confuse argument parsing,
such as -n.
-i Ignore alphabetic case distinctions. The implementation folds into lower case all letters in the pattern and input before interpre-
tation. Matched lines are printed in their original form.
-l (ell) Print the names of files with selected lines; don't print the lines.
-L Print the names of files with no selected lines; the converse of -l.
-n Mark each printed line with its line number counted in its file.
-s Produce no output, but return status.
-v Reverse: print lines that do not match the pattern.
-f The pattern argument is the name of a file containing regular expressions one per line.
-b Don't buffer the output: write each output line as soon as it is discovered.
Output lines are tagged by file name when there is more than one input file. (To force this tagging, include /dev/null as a file name
argument.)
Care should be taken when using the shell metacharacters $*[^|()= and newline in pattern; it is safest to enclose the entire expression in
single quotes '...'. An expression starting with '*' will treat the rest of the expression as literal characters.
G invokes grep with -n and forces tagging of output lines by file name. If no files are listed, it searches all files matching
*.C *.b *.c *.h *.m *.cc *.java *.cgi *.pl *.py *.tex *.ms
SOURCE
/src/cmd/grep
/bin/g
SEE ALSO ed(1), awk(1), sed(1), sam(1), regexp(7)DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)