|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
Splitting the line in multiple lines
Post 302180125 by dd_sh on Saturday 29th of March 2008 11:46:42 PM
03-30-2008
Splitting the line in multiple lines
Hi Guys,
I need a help. I am pretty new to the shell level programing. I was trying to split a long lines to a multiple lines with few conditions. I goggle for the code and found some snippets and tried to modified it but I got few strange problems too.
I have to split the lines if line is longer than 120 characters, then I have to separate it by adding "\" at the end of around 120th character. Note it can only separated at delimitation positions such as space or comma. And here is the code for that
#!/bin/sh
awk '{
if ( length($0) > 120 )
{
str=$0 ;
i=0 ;
while(length(str) > 120)
{
j=0;
for (m=1; m<=120;m++)
{
letter=substr($0,i+m,1);
#printf("%s\n",letter);
if( letter !=",")
then
else
{
j=m;
# printf("%s\n",substr($0,i+1,j) );
} fi
if( letter !=" ")
then
else
{ j=m;}
fi
}
printf("%s/\n",substr($0,i+1,j) );
i+=j ;
str=substr($0,i,length($0) );
}
if( length(str) > 1 )
printf("%s\n", substr(str,2,length(str))) ;
}
else
{
print $0
}
}' myfile.txt
But my problem was that above condition is working if put in posted order. If I used to work with equal to and put the expression after then it is not working properly.
I was also not able to use the OR expression for comma and space
I also need the program which can revert the same operation. I also read few tutorial about sed but found its quite confusing for new users
I need a help. I am pretty new to the shell level programing. I was trying to split a long lines to a multiple lines with few conditions. I goggle for the code and found some snippets and tried to modified it but I got few strange problems too.
I have to split the lines if line is longer than 120 characters, then I have to separate it by adding "\" at the end of around 120th character. Note it can only separated at delimitation positions such as space or comma. And here is the code for that
#!/bin/sh
awk '{
if ( length($0) > 120 )
{
str=$0 ;
i=0 ;
while(length(str) > 120)
{
j=0;
for (m=1; m<=120;m++)
{
letter=substr($0,i+m,1);
#printf("%s\n",letter);
if( letter !=",")
then
else
{
j=m;
# printf("%s\n",substr($0,i+1,j) );
} fi
if( letter !=" ")
then
else
{ j=m;}
fi
}
printf("%s/\n",substr($0,i+1,j) );
i+=j ;
str=substr($0,i,length($0) );
}
if( length(str) > 1 )
printf("%s\n", substr(str,2,length(str))) ;
}
else
{
print $0
}
}' myfile.txt
But my problem was that above condition is working if put in posted order. If I used to work with equal to and put the expression after then it is not working properly.
I was also not able to use the OR expression for comma and space
I also need the program which can revert the same operation. I also read few tutorial about sed but found its quite confusing for new users
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a case where, I need to look into a file.
Go to each line of the file, find the length of the line, if the length of the line is more than 75 chars, I need to split the line into multiple lines of 75chars max. If the length of the line is less than 75, we need not do anything.
So at the... (4 Replies)
Discussion started by: thanuman
4 Replies
2. Shell Programming and Scripting
Hi all
I have a file with these lines
good
gone
home
What code do you need to put this on one line like this
good gone home (2 Replies)
Discussion started by: hawaiifiver
2 Replies
3. Shell Programming and Scripting
Hi,
I've some files with the following data and i need to convert the lines between the separator ---, into a single line. I've tried with the paste cmd but my main problem is that the number of lines between the separator is not fix, it can very between 1-4 lines.
Input
---
2010-02-22... (4 Replies)
Discussion started by: RickyC9999
4 Replies
4. Shell Programming and Scripting
Hi,
I have a huge file with a single line.
But I want to break that line into lines of with each line having five columns.
My file is like this:
code:
"hi","there","how","are","you?","It","was","great","working","with","you.","hope","to","work","you."
I want it like this:
code:... (1 Reply)
Discussion started by: rajsharma
1 Replies
5. Shell Programming and Scripting
example:
comment Now_TB.table column errac is for error messages
1 - first
2 - second
3 -third ;
in this example I need to be able to grab the comment as first word and ; as the last word and it might span a few lines. I need it to be put all in one line without line breaks so I can... (4 Replies)
Discussion started by: wambli
4 Replies
6. Shell Programming and Scripting
Hi guys,
So i have a input file with several sequences aligned (fasta)
>NC_005930 241 bp
MNMINIFIINNIFDQFIPVKLSIFSLTSVGSIIA
LSWVWINTKTHWAISRSNTP-SLLLNSL
WTLLITNL-NEKTNPWAPWLFSLFLLCFSFNIMSLI-PYTF-SQ
TSHLSFTFGLSLPIWIMVNIAGFKNNWKKKISHLLPQGTPIYLVPVMII
IETISLFIQPLTLGFRLGANLLAGHLLIFLCSCTIWE... (6 Replies)
Discussion started by: andreia
6 Replies
7. Shell Programming and Scripting
Hi All,
I am reading a line from a file and writing it to other file.
Whenever I got a particular line then I want that line to be splited into 4 line and written it to new file. e.g My line is
U_ABC connector3 pin24E connector4 pin25E connector5 pin26E connector6 pin27E connector7... (2 Replies)
Discussion started by: diehard
2 Replies
8. Shell Programming and Scripting
Hi,
I have one problem scenorio as below.
my source file is :
cat input_file.
"hi","there","how","are","you?","It","was","great","working","with","you.","hope","to","work","y ou."
my output should be like.
"hi","there","how","are","you?",
"It","was","great","working","with",... (7 Replies)
Discussion started by: abhilash_nakka
7 Replies
9. Shell Programming and Scripting
Hi All,
I have more than half million lines of XML file , wanted to split in four files in a such a way that top 7 lines should be present in each file on top and bottom line of should be present in each file at bottom.
from the 8th line actual record starts and each record contains 15 lines... (14 Replies)
Discussion started by: ajju
14 Replies
10. UNIX for Beginners Questions & Answers
I have code as below
# create temporary table `temp4277`(key(waybill_no))
select waybill_no,concat_ws('',card_type,card_series_no) cardinfo
from rfid_temp_ticket where waybill_no='4277'
group by... (4 Replies)
Discussion started by: kaushik02018
4 Replies
LEARN ABOUT MOJAVE
split
SPLIT(1) BSD General Commands Manual SPLIT(1) NAME
split -- split a file into pieces SYNOPSIS
split [-a suffix_length] [-b byte_count[k|m]] [-l line_count] [-p pattern] [file [name]] DESCRIPTION
The split utility reads the given file and breaks it up into files of 1000 lines each. If file is a single dash ('-') or absent, split reads from the standard input. The options are as follows: -a suffix_length Use suffix_length letters to form the suffix of the file name. -b byte_count[k|m] Create smaller files byte_count bytes in length. If ``k'' is appended to the number, the file is split into byte_count kilobyte pieces. If ``m'' is appended to the number, the file is split into byte_count megabyte pieces. -l line_count Create smaller files n lines in length. -p pattern The file is split whenever an input line matches pattern, which is interpreted as an extended regular expression. The matching line will be the first line of the next output file. This option is incompatible with the -b and -l options. If additional arguments are specified, the first is used as the name of the input file which is to be split. If a second additional argument is specified, it is used as a prefix for the names of the files into which the file is split. In this case, each file into which the file is split is named by the prefix followed by a lexically ordered suffix using suffix_length characters in the range ``a-z''. If -a is not speci- fied, two letters are used as the suffix. If the name argument is not specified, the file is split into lexically ordered files named with the prefix ``x'' and with suffixes as above. ENVIRONMENT
The LANG, LC_ALL, LC_CTYPE and LC_COLLATE environment variables affect the execution of split as described in environ(7). EXIT STATUS
The split utility exits 0 on success, and >0 if an error occurs. SEE ALSO
csplit(1), re_format(7) STANDARDS
The split utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). HISTORY
A split command appeared in Version 3 AT&T UNIX. BUGS
The maximum line length for matching patterns is 65536. BSD
August 21, 2005 BSD