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Full Discussion: Using freq in script
Top Forums Shell Programming and Scripting Using freq in script Post 302937949 by member2014 on Tuesday 10th of March 2015 11:04:44 PM
Old 03-11-2015
Using freq in script

Hi,

I have a requirement where I need to check a column data in a fixed length file.

Sample file.
Code:
1 10 20150201 TEST1 TEST1
2 20 20140201 TEST2 TEST2
3 30 20150810 TEST3 TEST3
4 10 20150201 TEST4 TEST4
5 10 20150201 TEST5 TEST5
6 30        0 TEST6 TEST6
7 20 20140201 TEST7 TEST7
8 10 20140201 TEST8 TEST8
9 20 20120609 TEST9 TEST9
1  0 20120609 TEST0 TEST0
2 20 20150201 TEST2 TEST2
3  0        0 TEST3 TEST3
4  0        0 TEST4 TEST4
5  0 20150201 TEST5 TEST5

The characters 6-13 is a date column for which the value has to be 8 digits. I don't need to validate the date format that its an actual date, only that the value is 8 digits.

I am able to do a freq on the file which will tell me the counts per value:
Code:
/>freq inputfile.txt 6 13
inputfile.txt
       0  3
20120609  2
20140201  3
20150201  5
20150810  1
Total    14

Can anyone help me as to how this can be checked in a shell script?

Thanks.
 

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unix2dos(1)						      General Commands Manual						       unix2dos(1)

NAME
unix2dos - UNIX to DOS text file format converter SYNOPSYS
unix2dos [options] [-c convmode] [-o file ...] [-n infile outfile ...] Options: [-hkqV] [--help] [--keepdate] [--quiet] [--version] DESCRIPTION
This manual page documents unix2dos, the program that converts text files in UNIX format to DOS format. OPTIONS
The following options are available: -h --help Print online help. -k --keepdate Keep the date stamp of output file same as input file. -q --quiet Quiet mode. Suppress all warning and messages. -V --version Prints version information. -c --convmode convmode Sets conversion mode. Simulates unix2dos under SunOS. -o --oldfile file ... Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used. -n --newfile infile outfile ... New file mode. Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be used or you WILL lost your files. EXAMPLES
Get input from stdin and write output to stdout. unix2dos Convert and replace a.txt. Convert and replace b.txt. unix2dos a.txt b.txt unix2dos -o a.txt b.txt Convert and replace a.txt in ASCII conversion mode. Convert and replace b.txt in ISO conversion mode. unix2dos a.txt -c iso b.txt unix2dos -c ascii a.txt -c iso b.txt Convert and replace a.txt while keeping original date stamp. unix2dos -k a.txt unix2dos -k -o a.txt Convert a.txt and write to e.txt. unix2dos -n a.txt e.txt Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt. unix2dos -k -n a.txt e.txt Convert and replace a.txt. Convert b.txt and write to e.txt. unix2dos a.txt -n b.txt e.txt unix2dos -o a.txt -n b.txt e.txt Convert c.txt and write to e.txt. Convert and replace a.txt. Convert and replace b.txt. Convert d.txt and write to f.txt. unix2dos -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt DIAGNOSTICS
BUGS
The program does not work properly under MSDOS in stdio processing mode. If you know why is that so, please tell me. AUTHOR
Benjamin Lin - ( blin@socs.uts.edu.au ) MISCELLANY
Tested environment: Linux 1.2.0 with GNU C 2.5.8 SunOS 4.1.3 with GNU C 2.6.3 MS-DOS 6.20 with Borland C++ 4.02 Suggestions and bug reports are welcome. SEE ALSO
dos2unix(1) 1995.03.31 unix2dos v2.2 unix2dos(1)
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