I will assume you want to change the header but keep the rest of the 30 million lines. Since the new header has the same length, the following will open file for both reading and writing:
This will be very fast and replace the file in place. Be careful.
Hello,
Does changing a header in a shared library under Solaris (say adding a new class data member) will result in not only compiling that library but all of the libraries that depend on that lib that was changed because of the change in the object's size? What about adding a virtual function?... (0 Replies)
I have a log file that is about 1.2 million lines long and about 300MB.
we need a way to clean up this file and only keep the last few thousand lines.
if i use tail command we run our of memory as the file is too big.
I do have a key word to match on.
example, we want to keep every line... (8 Replies)
awk -F ";" '{if($10>80 && NR>1) print $0 }' txt_file_*
I am using this command to print the lines which has 10th field more then 80 and leaving the first line of the file which is the header.
But this is not working , the first line is is coming as output , please correct me .
thanks (2 Replies)
How can i tweak sendmail configuration files so that the "Received:" field is removed from email header information?
Or else can i change Received: (from enswitch@localhost) in email header to something likeReceived: (from xyz@localhost)?
---------- Post updated at 09:57 PM ---------- Previous... (2 Replies)
Hi,
I need a help in creating a report file.
The input file is like this
1 A
2 B
3 V
4 X
5 m
6 O
7 X
8 p
9 a
10 X
There is a header which i have to print & save the result as a output file.
The header has multiple lines on is like say:
New New
S.No Name (15 Replies)
Dear All,
I have two files both containing 10 Million records each separated by comma(csv fmt).
One file is input.txt other is status.txt.
Input.txt-> contains fields with one unique id field (primary key we can say)
Status.txt -> contains two fields only:1. unique id and 2. status
... (8 Replies)
these are numeric ids..
222932017099186177
222932014385467392
222932017371820032
222932017409556480
I have text file having 300 millions of line as shown above. I want to find duplicates from this file. Please suggest the quicker way..
sort | uniq -d will... (3 Replies)
HI ,
i have to print the first header of df -h (Filesystem Size Used Avail Use% Mounted on)and line which conatin size Network path only.
Filesystem Size Used Avail Use% Mounted on
/test/sda3 35G 1.8G 32G 6% /
/test/sda10 7.8G 1.1G ... (3 Replies)
I've been struggling with this one for quite a while and cannot seem to find a solution for this find/replace scenario. Perhaps I'm getting rusty.
I have a file that contains a number of metrics (exactly 3 fields per line) from a few appliances that are collected in parallel. To identify the... (3 Replies)
Discussion started by: verdepollo
3 Replies
LEARN ABOUT SUSE
uuencode
UUENCODE(5) File Formats Manual UUENCODE(5)NAME
uuencode - format of an encoded uuencode file
DESCRIPTION
Files output by uuencode(1) consist of a header line, followed by a number of body lines, and a trailer line. The uudecode(1) command will
ignore any lines preceding the header or following the trailer. Lines preceding a header must not, of course, look like a header.
The header line is distinguished by having the first 6 characters begin The word begin is followed by a mode (in octal), and a string
which names the remote file. A space separates the three items in the header line.
The body consists of a number of lines, each at most 62 characters long (including the trailing newline). These consist of a character
count, followed by encoded characters, followed by a newline. The character count is a single printing character, and represents an inte-
ger, the number of bytes the rest of the line represents. Such integers are always in the range from 0 to 63 and can be determined by sub-
tracting the character space (octal 40) from the character.
Groups of 3 bytes are stored in 4 characters, 6 bits per character. All are offset by a space to make the characters printing. The last
line may be shorter than the normal 45 bytes. If the size is not a multiple of 3, this fact can be determined by the value of the count on
the last line. Extra garbage will be included to make the character count a multiple of 4. The body is terminated by a line with a count
of zero. This line consists of one ASCII space.
The trailer line consists of end on a line by itself.
SEE ALSO uuencode(1), uudecode(1), uusend(1), uucp(1), mail(1)HISTORY
The uuencode file format appeared in BSD 4.0 .
UUENCODE(5)