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Shell Programming and Scripting

File modification problem

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# 1  
Old 02-15-2012
File modification problem
Hi,

I have a file input.txt.
cat input.txt
output is as follows :

Quote:
"0001"~"name"~"bb"~"20.25"~"0010"
~"abc"~"0002"~"name"~"dd"~"35.50"~"25"~
"xxx"~"0003"~"name"~"aa"~"21.3

5"~"0056"~"ijk"~
I want the output looking like:
cat output.txt
Quote:
"0001"~"name"~"bb"~"20.25"~"0010"~"abc"~
"0002"~"name"~"dd"~"35.50"~"25"~"xxx"~
"0003"~"name"~"aa"~"21.35"~"0056"~"ijk"~
I have a script.
Code:
cat input.txt | tr -d '\n' | sed 's/\("name"\)/\1\n/g' > output.txt

here I have to check "name" string and then enter newline. But I want the output as above. Anyone can help me please. If possible count ~ character equal to 6 then new line.

Thanks in advance
Last edited by mnmonu; 02-15-2012 at 03:55 AM..
# 2  
Old 02-15-2012
Could this help you ?
Code:
tr -d '\n' < Filename | awk -F"~" '{for(i=1;i<=NF;i++){printf i%6?$i"~":$i"~\n"}} END {printf "\n"}'

# 3  
Old 02-15-2012
Quote:
Originally Posted by pravin27
Could this help you ?
Code:
tr -d '\n' < Filename | awk -F"~" '{for(i=1;i<=NF;i++){printf i%6?$i"~":$i"~\n"}} END {printf "\n"}'

Hi pravin,

I want to count "~ this string 6 times.because file data value may be ~ character that is why only ~ count is not working. Count should be "~ character combination.

my code is

Code:
cat filename | tr -d '\n' | sed 's/\([^"\~]*"~[^"\~]*"~[^"\~]*"~[^"\~]*"~[^"\~]*"~[^"\~]*"~\)/\1\n/g'

but my code not working properly.
# 4  
Old 02-15-2012
like this
Code:
# sed ':e;N;s/\n//g;te' file1 |sed 's/~/~X_XsedX/6;s/~/~X_XsedX/12;s/X_XsedX/\n/g'
"0001"~"name"~"bb"~"20.25"~"0010"~"abc"~
"0002"~"name"~"dd"~"35.50"~"25"~"xxx"~
"0003"~"name"~"aa"~"21.35"~"0056"~"ijk"~

regards
ygemici
# 5  
Old 02-15-2012
Quote:
Originally Posted by ygemici
like this
Code:
# sed ':e;N;s/\n//g;te' file1 |sed 's/~/~X_XsedX/6;s/~/~X_XsedX/12;s/X_XsedX/\n/g'
"0001"~"name"~"bb"~"20.25"~"0010"~"abc"~
"0002"~"name"~"dd"~"35.50"~"25"~"xxx"~
"0003"~"name"~"aa"~"21.35"~"0056"~"ijk"~

regards
ygemici
Hi ygemici,

Your code is correct. But when file contain 10000 row then problem. Then some loop is needed.
# 6  
Old 02-15-2012
awk:
Code:
awk '{gsub(/[^~]*~"name"/,RS RS "&")}NF' infile | awk '{gsub(ORS,x)}1' RS=

# 7  
Old 02-15-2012
Hi Scrutinizer,
Your script is running properly when file contain few amount of data. But when file contain huge data that time your script getting lots of time.And also one problem. When I redirect your script then output file only one line.
Code:
awk '{gsub(/[^~]*~"name"/,RS RS "&")}NF' input_file | awk '{gsub(ORS,x)}1' RS= > output_file

Last edited by mnmonu; 02-15-2012 at 08:20 AM..
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