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Full Discussion: Shell script to pass the config file lines as variable on the respective called function on a script
Top Forums Shell Programming and Scripting Shell script to pass the config file lines as variable on the respective called function on a script Post 303007126 by sadique.manzar on Sunday 12th of November 2017 06:44:59 AM
Old 11-12-2017
Code:
S1()
{
stream=S1
path=/sadique/S1
counter=0
while [ $counter -le 100 ]
do
	for  files in `printf "%s\n" $path/*.RTM | head -3`
	do

on above code i want to pass path from a config file where i have many values.
so i want that my script should read each line of config file and match the pattern with stream and pass the path variable in my code.



Config file :

Quote:

S1 /sadique/S1
IUPS /sadique/IUPS
IUCS /sadique/IUCS
---------- Post updated at 06:44 AM ---------- Previous update was at 12:39 AM ----------

Requirement:

Config file:

key1 path1
key2 path2

search the key while reading the config file.
take the 2nd column of the that line as path
and pass it value during run time.


Code:
##Read 1st column as key of all the lines match the key with key inside the function and pass the 2nd column as argument during run time
#!/bin/sh
DATE=`date +"%Y-%m-%d %H:%M:%S"`
S1()
{
key=S1
counter=0
while [ $counter -le 100 ]
do
	for  files in `printf "%s\n" $path/*.RTM | head -3`
	do
		if [[ -f $files ]];
		then
		TT_FIRST=`awk -F ',' 'NR==1{print $1}' $files`
		TT_LAST=`awk -F ',' 'END{print $1}' $files`
		FILENAME=`ls $files | cut -d '/' -f6`
		TIMESTAMP=$( date -r $files +'%s')
		FILE_CR_TIME=$( date +'%Y-%m-%d %H:%M:%S' -r $files)
        TRANS_TIME_FIRST=$(date -d @$(printf '%.0f\n' $TT_FIRST) +'%s')
		TRANS_TIME_LAST=$(date -d @$(printf '%.0f\n' $TT_LAST) +'%s')
		RECORD_TIME_FIRST=$(date -d @$(printf '%.0f\n' $TT_FIRST) +"%Y-%m-%d %H:%M:%S")
		RECORD_TIME_LAST=$(date -d @$(printf '%.0f\n' $TT_LAST) +"%Y-%m-%d %H:%M:%S")
		TIME_LAG_FIRST=$(expr $TIMESTAMP - $TRANS_TIME_FIRST)
		TIME_LAG_LAST=$(expr $TIMESTAMP - $TRANS_TIME_LAST)
		DELAY_PROCESS=$((`expr $(date -u +"%s") - $TIMESTAMP`))
		TRANS_DIFFTIME=$(expr $TRANS_TIME_LAST - $TRANS_TIME_FIRST)
		counter=100
		else
			echo "file doesn't exist" >/dev/null
		fi	
		if [ "${FILENAME}" != "" ]; 
		then
			echo "${DATE} ${stream} ${FILENAME} ${FILE_CR_TIME} ${RECORD_TIME_FIRST} ${TIME_LAG_FIRST} ${RECORD_TIME_LAST} ${TIME_LAG_LAST} ${DELAY_PROCESS} ${TRANS_DIFFTIME}" | hdfs dfs -appendToFile - /bigpfstest/DPI_INVESTIG/AUDIT/FINAL.csv
		else
			echo "Filename is empty" >/dev/null 
		fi 
	done
((counter++))
sleep 5s
done
}


S1 $path &

 

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LEARN ABOUT DEBIAN

sleepenh

SLEEPENH(1)						      General Commands Manual						       SLEEPENH(1)

NAME

       sleepenh - an enhanced sleep program.

SYNOPSIS

       sleepenh [initial-time] sleep-time

DESCRIPTION

       sleepenh  is  a program that can be used when there is a need to execute some functions periodically in a shell script. It was not designed
       to be accurate for a single sleep, but to be accurate in a sequence of consecutive sleeps.
       After a successful execution, it returns to stdout the timestamp it finished running, that can be used as initial-time to a successive exe-
       cution of sleepenh.

OPTIONS

       There are no command line options. Run it without any option to get a brief help and version.

ARGUMENTS

       sleep-time is a real number in seconds, with microseconds resolution (1 minute, 20 seconds and 123456 microseconds would be 80.123456).
       initial-time  is  a  real number in seconds, with microseconds resolution. This number is system dependent. In GNU/Linux systems, it is the
       number of seconds since midnight 1970-01-01 GMT. Do not try to get a good value of initial-time. Use the value supplied by a previous  exe-
       cution of sleepenh.
       If you don't specify initial-time, it is assumed the current-time.

EXIT STATUS

       An exit status greater or equal to 10 means failure.  Known exit status:

       0      Success.

       1      Success. There was no need to sleep. (means that initial-time + sleep-time was greater than current-time).

       10     Failure. Missing command line arguments.

       11     Failure. Did not receive SIGALRM.

       12     Failure. Argument is not a number.

       13     Failure. System error, could not get current time.

USAGE EXAMPLE

       Suppose you need to send the char 'A' to the serial port ttyS0 every 4 seconds. This will do that:
	       #!/bin/sh
	       TIMESTAMP=`sleepenh 0`
	       while true; do
		 # send the byte to ttyS0
		 echo -n "A" > /dev/ttyS0;

		 # just print a nice message on screen
		 echo -n "I sent 'A' to ttyS0, time now is ";
		 sleepenh 0;

		 # wait the required time
		 TIMESTAMP=`sleepenh $TIMESTAMP 4.0`;
	       done

HINT

       This program can be used to get the current time. Just execute:

       sleepenh 0

BUGS

       It is not accurate for a single sleep. Short sleep-times will also not be accurate.

SEE ALSO

       date(1), sleep(1).

AUTHOR

       This manual page was written by Pedro Zorzenon Neto.

								    2008/04/20							       SLEEPENH(1)
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