remove lines from file where > 13 occurrences of character

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Remove newline character from column spread over multiple lines in a file

Hi, I came across one issue recently where output from one of the columns of the table from where i am creating input file has newline characters hence, record in the file is spread over multiple lines. Fields in the file are separated by pipe (|) delimiter. As header will never have newline...

2. UNIX for Beginners Questions & Answers

Remove lines ending with a certain character

I have a file of a content like this: abc_bla -def 800 abc_bla -def 802 abc_bla -def 804 abc_bla -def 806 abc_bla -def 808 abc_bla -def 810 abc_bla -def 812 abc_bla -def 814 ... abc_bla -def 898 abc_bla -def 900 abc_bla -def 902 abc_bla -def 904 ... abc_bla -def 990 abc_bla -def...

3. Shell Programming and Scripting

How to remove newline character if it is the only character in the entire file.?

I have a file which comes every day and the file data look's as below. Vi abc.txt a|b|c|d\n a|g|h|j\n Some times we receive the file with only a new line character in the file like vi abc.txt \n

4. Shell Programming and Scripting

Remove duplicate occurrences of text pattern

Hi folks! I have a file which contains a 1000 lines. On each line i have multiple occurrences ( 26 to be exact ) of pattern folder#/folder#. # is depicting the line number in the file some text here folder1/folder1 some text here folder1/folder1 some text here folder1/folder1 some text...

5. Shell Programming and Scripting

Execution problem ---to remove the lines which starts with one type of character

Hi, I have one file, I need to check if file exist or not and then remove the lines which starts with ? My file1.out data is some thing abcabcppp xyzxyzpqr ????????? ????????? Output should be in test.out abcabcppp xyzxyzpqr I am getting the output as below but the File does not exist...

6. UNIX for Dummies Questions & Answers

Remove 1st character in periodic lines

Hi, I have a file that looks like this, the unity of information is composed of four lines, and these extends for millions. My objective is to remove the highligthed "T". How to attack this? This character is always constant in type "T" and position "1st" but the rest of the line is...

7. Shell Programming and Scripting

remove all occurrences of a character at the beginning of a string

Hi there, i need some help to remove all occurrences of a certain character at the beginning of a string. Example: my string is 00102030 and i want to remove all zeros from beginning of string so the result is 102030

8. UNIX for Dummies Questions & Answers

Remove Occurrences created with Uniq -c

Hello, I have "mastered" the counting of occurrences with uniq -c. :D Now I need to keep that file neat and nice and remove only the occurrence number and the space after it. Example: 1286456 aaa 164758 aab aaa 112345 aac aaf should be turned into: aaa aab aaa aac aaf I...

9. Shell Programming and Scripting

How do I remove lines that have more than one of a certain character in them?

I have a file with a few thousand lines and I'd like to remove all the lines that have more than 1 asterik (the * character) in it. So if it has 2 or more in a single line, I'd like the line removed (double d command in vi)

10. UNIX for Dummies Questions & Answers

find and remove rows from file where multi occurrences of character found

I have a '~' delimited file of 6 - 7 million rows. Each row should contain 13 columns delimited by 12 ~'s. Where there are 13 tildes, the row needs to be removed. Each row contains alphanumeric data and occasionally a ~ ends up in a descriptive field and therefore acts as a delimiter, resulting in...

LEARN ABOUT REDHAT

units

UNITS(7)						     Linux Programmer's Manual							  UNITS(7)

NAME

       units, kilo, kibi, mega, mebi, giga, gibi - decimal and binary prefixes

DESCRIPTION

   Decimal prefixes
       The  SI	system	of units uses prefixes that indicate powers of ten.  A kilometer is 1000 meter, and a megawatt is 1000000 watt.  Below the
       standard prefixes.

	      Prefix   Name    Value
	      y        yocto   10^-24 = 0.000000000000000000000001
	      z        zepto   10^-21 = 0.000000000000000000001
	      a        atto    10^-18 = 0.000000000000000001
	      f        femto   10^-15 = 0.000000000000001
	      p        pico    10^-12 = 0.000000000001
	      n        nano    10^-9  = 0.000000001
	      u        micro   10^-6  = 0.000001
	      m        milli   10^-3  = 0.001
	      c        centi   10^-2  = 0.01
	      d        deci    10^-1  = 0.1
	      da       deka    10^ 1  = 10
	      h        hecto   10^ 2  = 100
	      k        kilo    10^ 3  = 1000
	      M        mega    10^ 6  = 1000000
	      G        giga    10^ 9  = 1000000000
	      T        tera    10^12  = 1000000000000
	      P        peta    10^15  = 1000000000000000
	      E        exa     10^18  = 1000000000000000000
	      Z        zetta   10^21  = 1000000000000000000000
	      Y        yotta   10^24  = 1000000000000000000000000

       The symbol for micro is the Greek letter mu, often written u in an ASCII context where this Greek letter is not available.  See also

	      http://physics.nist.gov/cuu/Units/prefixes.html

   Binary prefixes
       The binary prefixes resemble the decimal ones, but have an additional 'i' (and "Ki" starts with a capital 'K'). The  names  are	formed	by
       taking the first syllable of the names of the decimal prefix with roughly the same size, followed by "bi" for "binary".

	      Prefix   Name   Value
	      Ki       kibi   2^10 = 1024
	      Mi       mebi   2^20 = 1048576
	      Gi       gibi   2^30 = 1073741824
	      Ti       tebi   2^40 = 1099511627776
	      Pi       pebi   2^50 = 1125899906842624
	      Ei       exbi   2^60 = 1152921504606846976

       See also

	      http://physics.nist.gov/cuu/Units/binary.html

   Discussion
       Before these binary prefixes were introduced, it was fairly common to use k=1000 and K=1024, just like b=bit, B=byte.  Unfortunately, the M
       is capital already, and cannot be capitalized to indicate binary-ness.

       At first that didn't matter too much, since memory modules and disks came in sizes that were powers of two, so everyone knew that  in  such
       contexts  "kilobyte" and "megabyte" meant 1024 and 1048576 bytes, respectively. What originally was a sloppy use of the prefixes "kilo" and
       "mega" started to become regarded as the "real true meaning" when computers were involved.  But then  disk  technology  changed,  and  disk
       sizes  became  arbitrary  numbers.   After  a period of uncertainty all disk manufacturers settled on the standard, namely k=1000, M=1000k,
       G=1000M.

       The situation was messy: in the 14k4 modems, k=1000; in the 1.44MB diskettes, M=1024000; etc. In 1998 the IEC approved  the  standard  that
       defines the binary prefixes given above, enabling people to be precise and unambiguous.

       Thus, today, MB = 1000000B and MiB = 1048576B.

       In the free software world programs are slowly being changed to conform. When the Linux kernel boots and says

	      hda: 120064896 sectors (61473 MB) w/2048KiB Cache

       the MB are megabytes and the KiB are kibibytes.

Linux								    2001-12-22								  UNITS(7)

UNIX for Advanced & Expert Users