08-04-2015
Since 'fold' also depends upon standard input, doesn't that limit the line length to the system default max line length.
An alternative solution would be to write a cobol program using GNUcobol, making the input file sequential with fixed record length (ie no record separator), and the output file line sequential.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Is there a command that sets a variable length?
I have a input of a variable length field but my output for that field needs to be set to 32 char.
Is there such a command?
I am on a sun box running ksh
Thanks (2 Replies)
Discussion started by: r1500
2 Replies
2. Shell Programming and Scripting
Problem:
entry_name="joke:hello:yellow:blue:default"
print("%d %-12s\t%-10s\t%-5s\n", $i, $entry_name....);
I just want to print the output like this
index entry value ....
1 joke:hello:y 0 123 567
ellow:blue:d
... (1 Reply)
Discussion started by: a2156z
1 Replies
3. UNIX for Dummies Questions & Answers
I want to find out the record length of a fixed length file? I forgot the command. Any body know? (9 Replies)
Discussion started by: tranq01
9 Replies
4. Shell Programming and Scripting
Input File:
nawk -F "|" '{
for(i=1;i<=NF;i++) {
if (i == 2)
{gsub(",","#",$i);z=split($i,a,"")}
else if (i == 3)
{gsub(",","#",$i);z=split($i,b,"")}
}
if(z > 0) for(i=1;i<=z;i++)
print $1,a,"Test";
if(w > 0) for(j=1;j<=w;j++)
... (1 Reply)
Discussion started by: pinnacle
1 Replies
5. Shell Programming and Scripting
Hi,
I have a fixed length file where I need to verify the values of 3 different fields, where each field will have a different value.
How can I do that in a single step. (6 Replies)
Discussion started by: naveen_sangam
6 Replies
6. Shell Programming and Scripting
I have a peculiar file with record format like given below. Each line is wrapped to next lines after certain number of characters. I want to concatenate all wrapped lines into 1.
Input:(wrapped after 10 columns)
This is li
ne1
This is li
ne2 and
this line
is too lo
ng
Shortline
... (8 Replies)
Discussion started by: kmanyam
8 Replies
7. Shell Programming and Scripting
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)
Discussion started by: Neelkanth
4 Replies
8. Shell Programming and Scripting
I have a big file having 100 K lines.
I have to read each line and see at 356 character position whethere there is a word "W" in it. If it is their then don't delete the line otherwise delete it.
There are two lines as one Header and one trailer which should remain same.
Can somebody... (5 Replies)
Discussion started by: mohit kanoongo
5 Replies
9. Shell Programming and Scripting
I need to break the line after every 3rd semi colon(;) using Unix shell scripting
Input.txt
ABC;DEF;JHY;LKU;QWE;BVF;RGHY;
Output.txt
ABC;DEF;JHY;
LKU;QWE;BVF;
RGHY; (1 Reply)
Discussion started by: meet_calramz
1 Replies
10. Shell Programming and Scripting
Hi Team,
I have an issue to split the file which is having special chracter(German Char) using awk command.
I have a different length records in a file. I am separating the files based on the length using awk command.
The command is working fine if the record is not having any... (7 Replies)
Discussion started by: Anthuvan
7 Replies
DD(1) General Commands Manual DD(1)
NAME
dd - convert and copy a file
SYNOPSIS
dd [option=value] ...
DESCRIPTION
Dd copies the specified input file to the specified output with possible conversions. The standard input and output are used by default.
The input and output block size may be specified to take advantage of raw physical I/O.
option values
if= input file name; standard input is default
of= output file name; standard output is default
ibs=n input block size n bytes (default 512)
obs=n output block size (default 512)
bs=n set both input and output block size, superseding ibs and obs; also, if no conversion is specified, it is particularly effi-
cient since no copy need be done
cbs=n conversion buffer size
skip=n skip n input records before starting copy
files=n copy n input files before terminating (makes sense only where input is a magtape or similar device).
seek=n seek n records from beginning of output file before copying
count=n copy only n input records
conv=ascii convert EBCDIC to ASCII
ebcdic convert ASCII to EBCDIC
ibm slightly different map of ASCII to EBCDIC
block convert variable length records to fixed length
unblock convert fixed length records to variable length
lcase map alphabetics to lower case
ucase map alphabetics to upper case
swab swap every pair of bytes
noerror do not stop processing on an error
sync pad every input record to ibs
... , ... several comma-separated conversions
Where sizes are specified, a number of bytes is expected. A number may end with k, b or w to specify multiplication by 1024, 512, or 2
respectively; a pair of numbers may be separated by x to indicate a product.
Cbs is used only if ascii, unblock, ebcdic, ibm, or block conversion is specified. In the first two cases, cbs characters are placed into
the conversion buffer, any specified character mapping is done, trailing blanks trimmed and new-line added before sending the line to the
output. In the latter three cases, characters are read into the conversion buffer, and blanks added to make up an output record of size
cbs.
After completion, dd reports the number of whole and partial input and output blocks.
For example, to read an EBCDIC tape blocked ten 80-byte EBCDIC card images per record into the ASCII file x:
dd if=/dev/rmt0 of=x ibs=800 cbs=80 conv=ascii,lcase
Note the use of raw magtape. Dd is especially suited to I/O on the raw physical devices because it allows reading and writing in arbitrary
record sizes.
SEE ALSO
cp(1), tr(1)
DIAGNOSTICS
f+p records in(out): numbers of full and partial records read(written)
BUGS
The ASCII/EBCDIC conversion tables are taken from the 256 character standard in the CACM Nov, 1968. The `ibm' conversion, while less
blessed as a standard, corresponds better to certain IBM print train conventions. There is no universal solution.
One must specify ``conv=noerror,sync'' when copying raw disks with bad sectors to insure dd stays synchronized.
Certain combinations of arguments to conv= are permitted. However, the block or unblock option cannot be combined with ascii, ebcdic or
ibm. Invalid combinations silently ignore all but the last mutually-exclusive keyword.
4th Berkeley Distribution April 29, 1985 DD(1)