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Full Discussion: Checking the format of inputs in a file
Top Forums Shell Programming and Scripting Checking the format of inputs in a file Post 302073830 by sendhilmani123 on Thursday 18th of May 2006 02:52:15 AM
Old 05-18-2006
Hi,

Now I want to do the same for , when I have four fields in my input file. When I tried to introduse a variable fourth and do the same thing it didnt work.

This is the script that worked for 3 fields in the input file

cnt=0
while read line
do
cnt=`expr $cnt + 1`
first=`echo $line | cut -f1 -d'|'`
second=`echo $line | cut -f2 -d'|'`
third=`echo $line | cut -f3 -d'|'`
if [ "$first" = "" -o "$second" = "" -o "$third" = "" ]; then
print "\nERROR: Line \#$cnt \"$line\" is missing a | field.\n"
print "\n The fields in the input file must be seperated by |"
fi
done < sdh_input_dl

I want to do the same, if there are four fields in my input file and I must check whether they are seperated by a "|".

Thanks in advance
 

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LEARN ABOUT X11R4

cut

CUT(1)                                                             User Commands                                                            CUT(1)

NAME

       cut - remove sections from each line of files

SYNOPSIS

       cut OPTION... [FILE]...

DESCRIPTION

       Print selected parts of lines from each FILE to standard output.

       With no FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -b, --bytes=LIST
              select only these bytes

       -c, --characters=LIST
              select only these characters

       -d, --delimiter=DELIM
              use DELIM instead of TAB for field delimiter

       -f, --fields=LIST
              select only these fields;  also print any line that contains no delimiter character, unless the -s option is specified

       -n     (ignored)

       --complement
              complement the set of selected bytes, characters or fields

       -s, --only-delimited
              do not print lines not containing delimiters

       --output-delimiter=STRING
              use STRING as the output delimiter the default is to use the input delimiter

       -z, --zero-terminated
              line delimiter is NUL, not newline

       --help display this help and exit

       --version
              output version information and exit

       Use  one,  and only one of -b, -c or -f.  Each LIST is made up of one range, or many ranges separated by commas.  Selected input is written
       in the same order that it is read, and is written exactly once.  Each range is one of:

       N      N'th byte, character or field, counted from 1

       N-     from N'th byte, character or field, to end of line

       N-M    from N'th to M'th (included) byte, character or field

       -M     from first to M'th (included) byte, character or field

AUTHOR

       Written by David M. Ihnat, David MacKenzie, and Jim Meyering.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report cut translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       Full documentation at: <http://www.gnu.org/software/coreutils/cut>
       or available locally via: info '(coreutils) cut invocation'

GNU coreutils 8.28                                                 January 2018                                                             CUT(1)
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