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how this scrypt work

 
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# 1  
Old 11-04-2009
how this scrypt work
hi i want to know what is the output of this lines
Code:
     LineNr=`fgrep -n $Search $File |cut -d: -f1` # Zeilennummer ntp
     Cmd="$LineNr s/^# //\nw\nq"     # ed-Kommando
     echo "$Cmd" | ed -s $File >/dev/null   # ed-Aufruf

in below scrypt
Code:
    
    File=/etc/inittab        # Datei zum Bearbeiten
    Search=Ntp.Cntl         # String zum Suchen
    if [ -n "`fgrep $Search $File`" ]
    then
     LineNr=`fgrep -n $Search $File |cut -d: -f1` # Zeilennummer ntp
     Cmd="$LineNr s/^# //\nw\nq"     # ed-Kommando
     echo "$Cmd" | ed -s $File >/dev/null   # ed-Aufruf
    else
     LineNr=`fgrep -n InfPmBoot $File | cut -d: -f1` # Zeilennummer 
 PmBoot
     Line="pm:2:once:/sys/inf/InfPmCall /sys/inf/Ntp.Cntl stop"
     Line="$Line >/dev/null 2>&1"     # Zeile zum Einfuegen
     Cmd="$LineNr a\n$Line\n.\nw\nq"    # ed-Kommando
     echo "$Cmd" | ed -s $File      # ed-Aufruf
    fi

Last edited by kaydream; 11-04-2009 at 12:59 AM..
 
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