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Shell Programming and Scripting

Error in script, STUCK :(

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Top Forums Shell Programming and Scripting Error in script, STUCK :(
# 8  
Old 08-16-2012
Leave a space character after if (or any unix command for that matter).
This User Gave Thanks to methyl For This Post:
nrjrasaxena
# 9  
Old 08-16-2012
Code:
if [ $i == 1 ]
  ^ THIS space!

This User Gave Thanks to RudiC For This Post:
methyl
# 10  
Old 08-16-2012
Great,
Lots of thanks you guys for such prompt help.. :-)

Code:
    if [ $i == 1 ]
    then

Working fine for now. Trying to modify the script further..:-) fingers crossed.

Thanks again,
Pooja

---------- Post updated at 01:28 PM ---------- Previous update was at 01:06 PM ----------

Hi,
I have small query,
ummm, using sed for changing the common text in a file leads to generation of extra file. Which becomes unnecessary step sometimes.

As I used sed is:
Code:
sed -e 's/file1/file2/g' Data1.txt > Data2.txt

For me purpose, I have to mv Data2.txt to Data1.txt anyhow. Please let me know if there is some trick to take care of it.

Thanks
Pooja
# 11  
Old 08-16-2012
unless your sed supports the '-i', you can try this:
Code:
{ rm FILE; sed -e '...' > FILE; } < FILE

# 12  
Old 08-16-2012
Hi,
The final form of the script is the following [1].. It's fulfilling my purpose which is following,
I need to run a card name
Code:
card_Data2011AB_Zee_40GeV

using a shell script Which I am providing as an argument.
And every time, I need to change the variable [code] filei to filei+1 [code].
I am afraid code is working, but I need to repeat this
Code:
if else

some 15 times or maybe more.
Can somebody please shrink the content?

Thanks in advance,
Pooja


[1]
Code:
#!/bin/bash
date
cd /home/poojasaxena/Desktop/CMS/script/DataMCMatch

function pause(){
   read -p "$*"
}

FILE=$1
TARGETPATH=$2

max=3
for ((i=1; i<=$max; ++i )) ; 
do
    echo "SHELL SCRIPTING ================ $i ==============" 
    cp $FILE $TARGETPATH
    
    if [ $i == 1 ]
    then  
	source $TARGETPATH
	
	pause 'Press [Enter] key to continue...'
        rm $TARGETPATH
	
    else
	if [ $i == 2 ]
	then
	    sed  -e 's/file1/file2/g' card_Data2011AB_Zee_40GeV > card_Data2011AB_Zee_40GeV_$i
	    cp card_Data2011AB_Zee_40GeV_$i card_Data2011AB_Zee_40GeV
	    source $TARGETPATH
	    
	    pause 'Press [Enter] key to continue...'
	    rm $TARGETPATH
	else
	    if [ $i == 3 ]
            then
		sed  -e 's/file2/file1/g' card_Data2011AB_Zee_40GeV > card_Data2011AB_Zee_40GeV_$i
		cp card_Data2011AB_Zee_40GeV_$i card_Data2011AB_Zee_40GeV
		source $TARGETPATH
		
		pause 'Press [Enter] key to continue...'
		rm $TARGETPATH
	    else
		echo "Its About To Terminate...Enjoy Scripting"
	    fi
	fi
    fi
done

---------- Post updated at 01:44 PM ---------- Previous update was at 01:38 PM ----------

Quote:
Originally Posted by vgersh99
unless your sed supports the '-i', you can try this:
Code:
{ rm FILE; sed -e '...' > FILE; } < FILE

Trick worked Smilie

thanks,

---------- Post updated at 02:27 PM ---------- Previous update was at 01:44 PM ----------

Hi,
I managed to shrink it, here is the script [1]. It is working fine EXCEPT that sed command has the error Smilie
Code:
 { rm card_Data2011AB_Zee_40GeV; sed -e 's/file$i/file$(i+1)/g' > card_Data2011AB_Zee_40GeV; } < card_Data2011AB_Zee_40GeV

I want this " i " to increment each time so its like :
Code:
i = 1 file1 -> file2
i = 2 file2-> file3
and so one

Please have a look,
Thanks

[1]
Code:
#!/bin/bash
date
cd /home/poojasaxena/Desktop/CMS/script/DataMCMatch/

FILE=$1
TARGETPATH=$2

function pause(){
   read -p "$*"
}

max=3
for (( i=0; i<=$max; ++i )) ; 
do
    echo "SHELL SCRIPTING ================ $i ==============" 
    cp $FILE $TARGETPATH
    
    if [ $i == 0 ]; then
	source $TARGETPATH
	pause 'Press [Enter] key to continue...'
        rm $TARGETPATH
	
    else
	if [ $i > 0 ]; then
	    { rm card_Data2011AB_Zee_40GeV; sed -e 's/file$i/file$i++/g' > card_Data2011AB_Zee_40GeV; } < card_Data2011AB_Zee_40GeV
	    source $TARGETPATH
	    pause 'Press [Enter] key to continue...'
	    rm $TARGETPATH
	else
	    echo "Its About To Terminate...Enjoy Scripting"
	fi
    fi
done

# 13  
Old 08-16-2012
you can use a C like syntax like for integers

if (( $i == 1 ))
then
.............
fi
# 14  
Old 08-16-2012
Hi Praveen,
Thanks for the reply, but I did not get this,
I want it to be implemented in SED command.. Smilie
Can you please write the command?

Thanks
Pooja
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