$d;N;2,4ba
N appends second line to pattern space. Since second line is in pattern space 2,4ba makes control to shift to -e :a.
Then N appends third line to pattern space. 2,4ba makes control shift to -e :a.
Then N appends fourth line to pattern space and control is shifted to -e :a.
If the fourth line is the last line then $d deletes all the lines in the pattern space else N appends fifth line to pattern space.
Now 2,4ba is not satisfied then P is executed to print the first line in pattern space and this line is then deleted by D command.
Then control is shifted to start of commands. If fifth line is last line then $d deletes all the lines in the pattern space and continues to till the end of file.
Hi everyone,
I am new to Unix programming. My inquries is:-
a) How to add a Header and Trailer in the set of data
b) Include a number count of the data in the trailer
The set of data only contained the information of 'Customer's Name' and 'Account Number'. I would like to add the Header... (2 Replies)
Hi
I have a file from which i need to remove the first 4 and the last 2 lines.. i know how to do it with sed but i need to do it in a perl script.. can you please help me how to do that.
Thanks (10 Replies)
Hi
Is there any command to scan thru a file looking for 2 consecutive blank lines and if any remove one of them. Please let me know.
Regards,
Tipsy (6 Replies)
Attached is a streamed EDI ANSI X12 output where the segment terminator/delimiter is a tilde ~ character.
Is it possible to do the following pseudo-code in a unix script (using either sed, awk and/or grep)?
Open file StreamedOutput.txt
Search for ISA and delete the data up to the tilde ~ char... (7 Replies)
i have .DAT file FILE1.DAT
1200910270040625
2123456789 J123456 ABC
2123456789 K123456 ABC
2222222222 L123456 DEF
2333333333 M12345 GHI
30000004
My outfile FILE2.TXT should have like this, I need the header value as ie (1200910270040625 ) body rows remove the duplicate rows and the... (2 Replies)
Hi guys, I was wondering if someone can give me a hand in helping me append transaction header line in a file at the end of the transaction detail lines.
Basically, I have a file that looks like this:
FHEAD File1
THEAD TRANS1-blah
TDETL HI1
TDETL HI2
TDETL HI3
TTAIL TRANS1-blah
THEAD... (3 Replies)
for example, i have a file with below content:
123413
866688
816866
818818
i want the output as:
This is header
123413
866688
816866
818818
This is trailer
i am able to achieve it using a bash script. (2 Replies)
Hi ,
My UNIX system is SUN Solaris.
I am trying to do a simple thing as described below.
I have a PIPE delimited file that has header and trailer. So the file is something like below:
Test1.txt looks like something below:
field_data1|field_data2|and some more data --Header
... (5 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 REDHAT
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)