Shell Scripting assignment - System Administration

finalAssignment

#!/bin/bash

#Computer System Administration-Question1(a)
#Script changes the default pwd and activates another script to analyze the files there.
#November25,2014
#Question1.a :CHANGECURRENTDIRECTORYANDACTIVATEREMOTESCRIPT

MAIN_SCRIPT_LOCATION='/home/tacho/Documents'#storesthelocationofthescript
date
echo"Currentscript:"\"$0\"""
echo-e"\nPROCESSOUTCOME(S):\n------------------"
echo"(+)Wearedefaultedatthislocation:-";pwd#displayspresentdirectory
cd$MAIN_SCRIPT_LOCATION#changesthepresentworkingdirectorytothatspecified
echo-e"(+)Changemadetothefollowing:";pwd#showsthecurrentdirectory
echo -e "(+)Script Activated -
'printExecutables'\n>>>>>>>>------->>>>>>>------->>>>>>>\n"
../printExecutables #calls and activates the intended script from the "current" directory

#Question1.b :Returns all executable files in present working directory regardless of owner.
CURRENTLOCATION='/home/tacho/Documents'#storestheintendedlocationinavariable
date #displaysthecurrentdateandtime
echo "Currentscript:"\"$0\""" #displays the name of the current script
echo-e "\nPROCESS OUTCOME(S):\n------------------"
echo-e "Present working directory has been changed to:";pwd #displays present working directory
echo-e "The following is a list of all the executable files in this directory:\n"
ls -lh $CURRENTLOCATION | grep [-w]'x' > only Executables #lists all files with executable permission and stores that list in a file called only Executables
awk 'BEGIN { printf "%-20s %-15s %-15s %s\n","Permissions", "Owner", "Group","Filename"
printf"%-20s%-15s%-15s%s\n","***********","*****","*****","********"
{ printf "%-20s %-15s %-15s %s\n", $1, $3, $4, $9 }' onlyExecutables #displaysthecontentofthefilewithonlyspecificcolumnsandcolumnheadings
echo""#anewlineforreadablilitypurposes


# Question 2: Ashellscripttoshowallfilesinadirectoryforaspecificuser
#AccessandStoring
date #displays the current date and time
echo"Currentscript:"\"$0\""" #displays the name of the current script
echo-e"\nPROCESSOUTCOME(S):\n------------------"
if["$#"-eq2];then #checks whether or not two parameters were given
ls-l"$2"|grep-w"$1">DATAFOUND #sends a filtered list of files to a new file based on the user($1)anddirectory($2)
else
echo-e"(-)SyntaxError! Recorded"\"$#\""parameter(s).'Format:<script><user>
<directory>'{'_'}\n"
exit #If the main condition was not satisfied, this prevents the script from executing any further
fi #endif(ParameterTest)
#Displayresult(s)
if[-sDATAFOUND];then #verifies whether or not the file is empty
  echo"(+)Content(s)found!{^_^}"
  echo-e"(+)Listoffilesownedby"\"$1\""inthe"\"$2\""directory/folder:\n"
  #The following (3) lines print content from the DATAFOUND file with specified columns and column headings using awk
  awk 'BEGIN { printf "%-15s %-15s %-15s %s\n","Permissions", "Owner", "Group", "Filename"
  printf "%-15s %-15s %-15s %s\n","***********", "*****", "*****","********"}
  {printf"%-15s%-15s%-15s%s\n",$1,$3,$4,$9}'DATAFOUND
else
  echo-e "(-)No file(s) exist(s) for the user,"\"$1\""in the"\"$2\""directory. {'_'}\n"
fi #endif(FileContentTest)