Shell Programming and Scripting

Hi,

can I delate first line in a file without opening a file.

Normal unix "sed -i '1d' $path/cash.log" command is working fine, but my windows application not supporting latest version of sed, I also tried to download latest version of sed.exe but failed to find one.

I am in a process of implement a buffer mechanism using following script

#!/bin/sh
path=C:/APPS/Tivoli/bin/w32-ix86/TME/TEC/scripts
set -x
exec 2> $path/SMS_LOG1.log
Cash_count=`more $path/cash.log |wc -l`
while [ "$Cash_count" != "0" ]
do
sms=`head -1 $path/cash.log`
echo "#MSG#$sms" >>$path/output
sleep 5
sed -i '1d' $path/cash.log
Cash_count=`more $path/cash.log |wc -l`
#echo "Cash_count: $Cash_count"
done < $path/cash.log


Please help me on this.


Thanks in advance
Regards
Sudhish

Code:

awk ' NR > 1 { print > "newfile.back" }' currentfile

Hi,

awk ' NR > 1 { print > "newfile.back" }' currentfile

It is working fine, but I what to delete the first line since it is loop command I cant replace the file.
Thanks in advance

Regards
Sudhish

Code:

tail +2 input_file > output_file

Code:

It is working fine, but I what to delete the first line since it is loop command I cant replace the file.
Thanks in advance

If you had to process within a loop,
this might help,

awk command;
( you have the new file )
mv new_file old_file

Hi,
Let me explain my requirement
1. $path/cash.log is a cash file, I can't rename it because it content is loaded by another script
2. This script will send SMS until cash.log file become empty also it will continue check for the messages, start sending sms as soon as the message comes
3. Script can only take first line of the cash.log file and send SMS
4. Then I have to delete the first line, other wise script will always send same message only

Deletion of first line is the problem

Thanks in advance
Sudhish

Hi,

Let me explain my requirement

1. $path/cash.log is a cash file, I can't rename it because it content is loaded by another script
2. This script will send SMS until cash.log file become empty also it will continue check for the messages, start sending sms as soon as the message comes
3. Script can only take first line of the cash.log file and send SMS
4. Then I have to delete the first line, other wise script will always send same message only

Deletion of first line is the problem

Thanks in advance
Sudhish