[SOLVED] start the line only with numbers

anshaa · 08-12-2012, 03:24 AM

jschiwal · 08-12-2012, 03:38 AM

My apologies. I misread the output file, and asked an erroneous question.

druuna · 08-12-2012, 04:01 AM

This is the closest I come without any more explanation:

Code:

tr '\n' '|' < infile | sed -e 's/|\([0-9][0-9]*\)/\n\1/g' -e 's/|$/\n/'

This does add an extra | when lines are appended.

Example:

Code:

$ cat infile
1234|test
weye|test1|break
576|test|break|title
2369|test|line|break
tite|break
234589|test|like|break

$ tr '\n' '|' < infile | sed -e 's/|\([0-9][0-9]*\)/\n\1/g' -e 's/|$/\n/'
1234|test|weye|test1|break
576|test|break|title
2369|test|line|break|tite|break
234589|test|like|break

Not too elegant, but it seems to be doing the job.

firstfire · 08-12-2012, 04:08 AM

Hi.
Here is another sed solution:

Code:

$ cat infile
1234|test
weye|test1|break
576|test|break|title
2369|test|line|break
tite|break
234589|test|like|break
$ sed -n '/^[0-9]/{:a; N; /\n[0-9]/be;  s/\n//; ba}; :e;p' infile
1234|testweye|test1|break
576|test|break|title
2369|test|line|breaktite|break
234589|test|like|break

The idea is almost the same as here.

whizje · 08-12-2012, 05:51 AM

nevermind

Hi,
A grep solution

Code:

bash-4.2$ tr '\n' '|' < infile |grep -Eo  "[[:digit:]]*[[:alpha:]|]*"
1234|test|weye|test
1|break|
576|test|break|title|
2369|test|line|break|tite|break|
234589|test|like|break|

whizje · 08-12-2012, 06:59 AM

Repaired grep

Code:

bash-4.2$ tr '\n' '|' < infile |grep -Eo  "[[:digit:]]*([|]+[[:digit:]]*[[:alpha:]]+[[:digit:]]*)*"
1234|test|weye|test1|break
576|test|break|title
2369|test|line|break|tite|break
234589|test|like|break

anshaa · 08-12-2012, 11:13 PM

HI,

When i use
1. sed -n '/^[0-9]/{:a; N; /\n[0-9]/be; s/\n//; ba}; :e;p' infile
i am getting Label to long error.

2. tr '\n' '|' < infile | sed -e 's/|$[0-9][0-9]*$/\n\1/g' -e 's/|$/\n/' > outfile
0 byte file is received.

Please help me.

anshaa · 08-12-2012, 11:25 PM

sed -n '/^[0-9]/{:a; N; /\n[0-9]/be; s/\n//; ba}; :e;p' infile
i am getting Label to long error.

anshaa · 08-13-2012, 02:34 AM

nawk 'END{print RS} /^[0-9]/{if(NR>1)print RS}1' ORS= filename > filename1

Works perfectly.

firstfire · 08-13-2012, 03:11 AM

Hi.

You probably have an ancient version of sed.