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Full Discussion: Aligning Texts
Top Forums Shell Programming and Scripting Aligning Texts Post 302966059 by drl on Sunday 7th of February 2016 09:56:25 AM
Old 02-07-2016
Hi.

From a perl script, align:
Code:
#!/usr/bin/env bash

# @(#) s1       Demonstrate text column vertical alignment, align.
# For align source, see:
# http://www.cs.indiana.edu/~kinzler/align/

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
# export PATH="/usr/local/bin:/usr/bin:/bin"
LC_ALL=C ; LANG=C ; export LC_ALL LANG
pe() { for _i;do printf "%s" "$_i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
db() { ( printf " db, ";for _i;do printf "%s" "$_i";done;printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && $C align

FILE=${1-data1}

pl " Input data file $FILE:"
cat $FILE

pl " Results:"
align $FILE

exit 0

producing:
Code:
$ ./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 3.16.0-4-amd64, x86_64
Distribution        : Debian 8.3 (jessie) 
bash GNU bash 4.3.30
align 1.7.0

-----
 Input data file data1:
THEN ( Thu Jan 28 = Hour[02] = 27924 )          =>          NOW ( Thu Feb 04 = Hour[02] = 27018 )         =>         Reduced By:         -3.24452
THEN ( Thu Jan 28 = Hour[03] = 8663 )          =>          NOW ( Thu Feb 04 = Hour[03] = 7396 )         =>         Reduced By:         -14.6254

-----
 Results:
THEN ( Thu Jan 28 = Hour[02] = 27924 ) => NOW ( Thu Feb 04 = Hour[02] = 27018 ) => Reduced By: -3.24452
THEN ( Thu Jan 28 = Hour[03] =  8663 ) => NOW ( Thu Feb 04 = Hour[03] =  7396 ) => Reduced By:-14.6254

Automatically detects type of data, aligns accordingly.

See comments in script above for web page for downloading.

Best wishes ... cheers, drl
This User Gave Thanks to drl For This Post:
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LEARN ABOUT OPENSOLARIS

endusershell

getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME

       getusershell, setusershell, endusershell - get legal user shells

SYNOPSIS

       #include <unistd.h>

       char *getusershell(void);

       void setusershell(void);

       void endusershell(void);

DESCRIPTION

       The  getusershell()  function  returns  a  pointer  to  a  legal  user  shell  as defined by the system manager in the file /etc/shells. If
       /etc/shells does not exist, the following locations of the standard system shells are used in its place:

	 /bin/bash		    /bin/csh
	 /bin/jsh		    /bin/ksh
	 /bin/ksh93		    /bin/pfcsh
	 /bin/pfksh		    /bin/pfsh
	 /bin/sh		    /bin/tcsh
	 /bin/zsh		    /sbin/jsh
	 /sbin/pfsh		    /sbin/sh
	 /usr/bin/bash		    /usr/bin/csh
	 /usr/bin/jsh		    /usr/bin/ksh
	 /usr/bin/ksh93 	    /usr/bin/pfcsh
	 /usr/bin/pfksh 	    /usr/bin/pfsh
	 /usr/bin/sh		    /usr/bin/tcsh
	 /usr/bin/zsh		    /usr/sfw/bin/zsh
	 /usr/xpg4/bin/sh

       The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells.

       The setusershell() function rewinds the file or the list.

       The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells.

RETURN VALUES

       The getusershell() function returns a null pointer on EOF.

BUGS

       All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved.

NOTES

       Restricted shells should not be listed in /etc/shells.

SunOS 5.11							    1 Nov 2007							  getusershell(3C)
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