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Revision: 70616
at May 11, 2016 01:53 by swetoast
Initial Code 
#!/bin/sh
SELF=$(basename $0)                                                 #uses the same name as the file
UPDATE_BASE=https://gitlab.com/swe_toast/self-update/raw/master/    #dont link directly to file link to the folder
UPDATE_SELF=${UPDATE_SELF:-1}

self_updater () {
        echo "Performing self-update... Please wait..."
if      ! wget --quiet --output-document="$0.tmp" $UPDATE_BASE/$SELF ;
then    echo "Failed downloading new version!"
        echo "File requested: $UPDATE_BASE/$SELF"
        exit 1
fi

OCTAL_MODE=$(stat -c '%a' $0)
    case ${OCTAL_MODE:--1} in
        -[1] )          echo "Failed: Error : OCTAL_MODE was empty"; exit 1 ;;
        777|775|755 )   echo "OCTAL mode set:${OCTAL_MODE}" ;;
        * )             echo "Failed: Error in OCTAL_MODEs, found value=${OCTAL_MODE}" exit 1 ;;
    esac

if      ! chmod $OCTAL_MODE $0.tmp ;
then    echo "Error on chmod $OCTAL_MODE %0.tmp from $UPDATE_BASE/$SELF, can't continue"
        exit 1
fi

cat > /tmp/updatescript.sh << EOF
#!/bin/sh
if mv "$0.tmp" "$0";
then    echo "Update complete.."
        exec env UPDATE_SELF=0 /bin/sh "$0"
        rm \$0
else    echo "Update failed.."
fi
EOF
        echo "Inserting update process..."
            exec /bin/sh /tmp/updatescript.sh; rm /tmp/updatescript.sh
}

check_update () { if [ ${UPDATE_SELF} -ne 0 ]; then self_updater; fi }

check_update
Initial URL 

                                

                                                            

                                    

                                        

                                        Initial Description
                                        

                                    

                                    
Simple script that updates itself upon launch then lauches whatever else thats included afterwards works well in almost any linux system tested on busyboxes and Debian systems

                                

                                                            

                                    

                                        

                                        Initial Title
                                        

                                    

                                    
Selfupdating Script

                                

                                                            

                                    

                                        

                                        Initial Tags
                                        

                                    

                                    

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
Bash