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Top Forums Shell Programming and Scripting Pass parameters to a function and running functions in parallel Post 302875225 by neutronscott on Tuesday 19th of November 2013 03:32:24 AM
Old 11-19-2013
Quote:
Originally Posted by Ravindra Swan
Please check where am i going wrong.
full_refresh.txt: input file
here i tried using split command to read 4 lines at once.
Well, quite possibly a lot. Is this for POSIX sh? If you have bash, you could use arrays instead of eval.

You should quote every "$variable".

You can test a command, rather than assign "$?" to a variable and test the variable... if takes a command ...

You should read your fields into separate values using read instead of `echo "$line" | awk '...'` ...

You write a "list.txt" but read a "list"

Taking all this into account, plus I don't think we need "split", I rewrite it as so:

Code:
#!/bin/sh
file='full_refresh.txt'
schema=schema
table=table
nickname=nickname

# i don't have this function...test
db2() {
        echo "db2: $@"
        #pretend like it takes some time
        sleep 10
}

full() {
        echo "You entered full $1,$2,$3"
        if db2 "call util.DATA_REFRESH('LOAD','$1','$2','$3','$2','R','?',?)"; then
                echo "$1.$2" >>Success_list.txt
        else
                echo "$1.$2" >>failure_list.txt
        fi
}

while IFS='|' read schema table nickname _; do
        count=$((count+1))
        full "$schema" "$table" "$nickname" &
        if [ "$count" -ge 4 ]; then
                wait
                count=0
        fi
done < "$file"

 

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script(1)							   User Commands							 script(1)

NAME
script - make record of a terminal session SYNOPSIS
script [-a] [filename] DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the record is saved in the file typescript. See WARNINGS. The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends when the forked shell exits or when Control-d is typed. OPTIONS
The following option is supported: -a Appends the session record to filename, rather than overwriting it. NOTES
script places everything that appears on the screen in filename, including prompts. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a privileged user, that is, root. Be sure that typescript is not a link before running script. SunOS 5.11 30 Jan 2004 script(1)
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