代码: #Program: mmenu - shell script of user menu items #Description: # Program consisting of a series of functions providing user menus # for simple tasks. # # Functions are loaded into memory and available for execution. Once # loaded, the main menu will be invoked. The main menu (entry point) is :MainMenu. # # The following functions are declared: # MainMenu # EditFile # MailMenu # UserUtilMenu # FileDirUtilMenu # GetFileName # ExecuteCommand # # Last updated on 10/10/2002 by A.M. Foster #************************************************************8 #Screen Display Variables REV=`tput rev` OREV=`tput sgr0` BLD=`tput smso` OBLD=`tput rmso` #Various variables MenuMsg="" MenUChoice="" #*********************************************************************8 #Routine: MainMenu #Main Menu function which displays the main menu to stdout. MainMenu() { #Menu loop while true do tput clear MenuChoice="" #Main Menu - display the main menu echo "" echo "" echo " ${REV}Main Menu${OREV}" echo "" echo "" echo " 1. ${BLD}E${OBLD}dit / File " echo "" echo " 2. ${BLD}S${OBLD}end/Receive Mail ..." echo "" echo " 3. ${BLD}U${OBLD}ser Utilities ..." echo "" echo " 4. ${BLD}F${OBLD}ile Directory Utilities ..." echo "" echo " 0. ${BLD}L${OBLD}og Off System" echo "" echo "" echo "${BLD}${MenuMsg}${OBLD}" echo "" echo "" echo -n "${BLD}Select: ${OBLD}" MenuMsg="" #Get user's choice and evaluate with case statement read MenuChoice #get user selection case ${MenuChoice} in "1" "e" "E" ) EditFile ;; "2" "s" "S" ) MailMenu ;; "3" "u" "U" ) UserUtilMenu ;; "4" "f" "F" ) FileDirUtilMenu ;; "0" "l" "L" ) echo " " echo " " echo "Exiting per User request!" sleep 2 tput clear exit 1 ;; * ) MenuChoice="" MenuMsg="${BLD}Invalid choice. Please try again.${OBLD}" ;; #Example of menu command that is hidden from users. Note that #it is not in the menu, but has a choice in the case statement. "admin" ) ExecuteCommand 'ps -ef more' ;; esac #end of case statement done #end of menu loop } #************************************************************************************ #Routine EditFile #Presents the Edit File Menu to stdout EditFile() { MenuMsg="" while true do MenuChoice="" tput clear echo "" echo "" echo "${REV}EDIT FILE${OREV}" echo "" echo "" echo "1. ${BLD}E${OBLD}nter File Name " echo "" echo "2. Enter File Name Name from Li${BLD}s${OBLD}t ... " echo "" echo "0. ${BLD}M${OBLD}ain Menu " echo "" echo "" echo "${BLD}${MenuMsg}${OBLD}" echo "" echo "" echo -n "${BLD}Select: ${OBLD}" MenuMsg="" #Get user's choice and evaluate with case statement read MenuChoice #get user selection case ${MenuChoice} in "1" "e" "E" ) echo -n "Enter file name to edit: " read FileName if [ -z "${FileName}" ] #check if user provided a file name then MenuMsg="You did not enter a valid file name!" else if [ -f ${FileName} ] #check if file exists then #check if file is a text file if [ "file ${FileName} grep text >> /dev/null" ] then filesoktoedit="y" else MenuMsg="${FileName} - is not an editable file!" fi else filesoktoedit="y" fi fi if [ $}filesoktoedit}="y" ] then vi "${FileName}" echo " " echo " Press any key to continue.." fi ;; "2" "s" "S" ) FileName="" GetFileName FileName if [ $? -eq 0 ] then if [ "file ${FileName} grep text >> /dev/null" ] then vi "${FileName}" echo " " echo " Press any key to continue.." else MenuMsg="${BLD}${FileName} - is not an editable file!${OBLD}1" fi fi ;; "0" "m" "M" ) break ;; * ) MenuChoice="" MenuMsg="${BLD}Invalid Choice! Please try again.${OBLD}" ;; esac done return 0 } #end of EditFile function #********************************************************************************** #Routine MailMenu #Displays Mail Menu to stdout MailMenu() { MessageMenu="" while true do tput clear MenuChoice="" echo "" echo "" echo "${REV}MAIL MENU${OREV}" echo "" echo "" echo " 1. ${BLD}S${OBLD}end Mail" echo "" echo " 2. ${BLD}R${OBLD}eceive Mail" echo "" echo " 0. ${BLD}M${OBLD}ain Menu" echo "" echo "${BLD}${MenuMsg}${OBLD}" echo "" echo "" echo -n "${BLD}Select: ${OBLD}" MenuMsg="" #Get user's choice and evaluate with case statement read MenuChoice #get user selection case ${MenuChoice} in "1" "s" "S" ) echo " " echo -n "Enter a mail ID to send to: " read mailid if [ -z "${mailid}" ] then MenuMsg="You mus
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