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Full Discussion: home directory
Top Forums Shell Programming and Scripting home directory Post 302307916 by quirkasaurus on Thursday 16th of April 2009 03:44:17 PM
Old 04-16-2009
My preferred method of dealing with things like this is to do in 2 or 3 steps,
not all at once.

Here's the first script:

Code:
#!/bin/ksh

#----------------------------------------------------------------------#
# head to home partition.                                              #
#----------------------------------------------------------------------#
cd /home

/bin/ls |
while read dir ; do

#----------------------------------------------------------------------#
# Not a directory, next....                                            #
#----------------------------------------------------------------------#
  if [ ! -d $dir ]; then
    continue
  fi

  cd $dir

#----------------------------------------------------------------------#
# Untar the tar file....                                               #
#----------------------------------------------------------------------#
  cp /fullpath/tar_file.gz .
  gunzip tar_file.gz

  chmod -R *

  cd /home

done | tee /tmp/log1

Once that thing is debugged and working correctly,
I use a code generator to create the next dangerous type commands:
( mv commands in this case.... )

Code:
#!/bin/ksh

#----------------------------------------------------------------------#
# head to home partition.                                              #
#----------------------------------------------------------------------#
cd /home

/bin/ls |
while read dir ; do

  cd /home/$dir/public_html/test1

#----------------------------------------------------------------------#
# Randomly rename 6 files.                                             #
#----------------------------------------------------------------------#
  num=0
  /bin/ls *.txt |
  while read file_nm ; do

    (( check = $RANDOM % 2 ))

    if [ $check -eq 0 ]; then
      continue
    fi

    (( num = num + 1 ))

    echo /bin/mv $PWD/$file_nm $PWD/newword${num}.word

    if [ $num -ge 6 ]; then
      break
    fi
  done ### while doing random renaming....

  cd /home

done |
  tee /tmp/log2

Then, before executing, I examine the contents of /tmp/log2.
If the commands in there look right --- then I execute that script with:

Code:
/bin/ksh -xvf /tmp/log2 2>&1 | tee /tmp/log3

Using this method decreases the risk incurred at each step and
provides a log for each step also.

HTH
 

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LEARN ABOUT SUNOS

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/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/pfcsh
       /usr/bin/pfksh		  /usr/bin/pfsh
       /usr/bin/sh		  /usr/bin/tcsh
       /usr/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.

SunOS 5.10							    30 Aug 2004 						  getusershell(3C)
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