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Full Discussion: Format columns and heads using shell script
Top Forums UNIX for Beginners Questions & Answers Format columns and heads using shell script Post 302986745 by dellanicholson on Tuesday 29th of November 2016 04:22:25 PM
Old 11-29-2016
Format columns and heads using shell script
My program output text file data in columns format. My problem is the column headers do not align with the data and if filesystem and Mounted On columns pathname are too long the text will not wrap.

Is there any function in Unix that I can use in my code that will align the data for each column with the correct headers? Is there any script in Unix that will wrap text if the pathname is too long?

1) The attachment named data not aligned with column headers shows the
current results.

2) The attachment named how i want the results. Is want I am looking for.

3) The attachment named disk_2016.11.29.txt is the file that is read in the code


here is my code
Code:
#!/bin/ksh
 
 
 
fpath=/sas/scripts/OPTUMize/output/disk_utilization
 
# get input
echo "Enter Group name (ex: hasasvmi): "
read gname
 
echo "Enter Current Date( ex: 10/01/2016): "
read cdate
# format: 09/30/2016
 
# parse date
yyyy=$(echo ${cdate} | cut -d"/" -f3)
dd=$(echo ${cdate} | cut -d"/" -f2)
mm=$(echo ${cdate} | cut -d"/" -f1)
 
echo "Enter number of records (ex: 1-1000): "
read nrec
 
# construct file name to parse
diskfile=${fpath}/disk_${yyyy}.${mm}.${dd}.txt
 
# check if file exists
if [ ! -f ${diskfile} ]
then
                echo File: ${diskfile} not found. Exiting.
                exit 1
fi
 
# generate output on screen - TAB separated (OFS)

awk -v gname=${gname} -v OFS="\t" 'BEGIN { print "Filesystem", "blocks", "Free", "% Used", "%Iused", "Mounted on", "Date", "Time" }
$0 ~ gname { gsub(/_/,""'"OFS"'"",$7); print $1, $2, $3, $4, $5, $6, $7 }' ${diskfile} | head -$(expr ${nrec} + 1)

data not aligned with column headers.txt (511 Bytes) 
how i want results.txt (552 Bytes) 
disk_2016.11.29.txt (413.4 KB) 
 

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LEARN ABOUT DEBIAN

shtool-echo

SHTOOL-ECHO.TMP(1)					      GNU Portable Shell Tool						SHTOOL-ECHO.TMP(1)

NAME

       shtool-echo - GNU shtool echo(1) extensional command

SYNOPSIS

       shtool echo [-n|--newline] [-e|--expand] string

DESCRIPTION

       shtool echo is an echo(1) style command which prints string to stdout and optionally provides special expansion constructs (terminal bold
       mode, environment details, date, etc) and newline control. The trick of this command is that it provides a portable -n option and hides the
       gory details needed to find out the environment details under option -e.

OPTIONS

       The following command line options are available.

       -n, --newline
	   By default, output is written to stdout followed by a "newline" (ASCII character 0x0a). If option -n is used, this newline character is
	   omitted.

       -e, --expand
	   If option -e is used, string can contain special "%x" constructs which are expanded before the output is written. Currently the
	   following constructs are recognized:

	   %B  switch terminal mode to bold display mode.

	   %b  switch terminal mode back to normal display mode.

	   %u  the current user name.

	   %U  the current user id (numerical).

	   %g  the current group name.

	   %G  the current group id (numerical).

	   %h  the current hostname (without any domain extension).

	   %d  the current domain name.

	   %D  the current day of the month.

	   %M  the current month (numerical).

	   %m  the current month name.

	   %Y  the current year.

EXAMPLE

	#   shell script
	shtool echo -n -e "Enter your name [%B%u%b]: "; read name
	shtool echo -e "Your Email address might be %u@%h%d"
	shtool echo -e "The current date is %D-%m-%Y"

HISTORY

       The GNU shtool echo command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 1998 for Website META Language (WML)
       under the name buildinfo. It was later taken over into GNU shtool.

SEE ALSO

       shtool(1), echo(1).

18-Jul-2008							   shtool 2.0.8 						SHTOOL-ECHO.TMP(1)
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