Thanks Don- Will check the performance and update you.
I am also looking to write in one line code something like below..
Kindly let me know if you have any suggestions on this.
---------- Post updated at 01:12 AM ---------- Previous update was at 12:41 AM ----------
Thanks a lot Don for your support...
My initial script took around 21 min 35 sec, with the new code it is taking 15 sec.
I would have thought that by now you would know that the awk command language and the shell command language are not the same.
I could rewrite the 62 line, 1,595 character ksh93 script I suggested to instead be a ksh script invoking awk that would run about twice as fast as the ksh93 script, and still produce exactly the same output as the other three scripts.
But, I would never attempt to do that if I thought you were going to try to convert that readable, maintainable, understandable 42 line, 840 character script into an unreadable, unmaintainable, not understandable 1-liner. And, if I were to create such a script, it would not contain an unneeded use of cat that would only slow it down (just like the cat in your original script did).
---------------------------------
I'm glad to hear that one of the three scripts I suggested is working well for you.
I am using the while-loop to read a file.
The file has lines with null-terminated strings (words, actually.)
What I have by that reading - just a first word up to '\0'!
I need to have whole string up to 'new line' - (LF, 10#10, 16#A)
What I am doing wrong?
#make file 'grb' with... (6 Replies)
Hi
I am using while loop, below, to read lines from a very large file, around 400,000 rows. The script works fine until around line 300k but then starts giving incorrect result.
I have tried running the script with a smaller data set and it works fine. I made sure to include the line where... (2 Replies)
Hi,
I'm trying to run the following command using sh -c
ie
sh -c "while read EachLine
do
rm -f $EachLine ;
done < file_list.lst;"
It doesn't seem to do anything.
When I run this at the command line, it does remove the files contained in the list so i know the command works
ie... (4 Replies)
Hi,
This is the script and the error I am receiving
Can anyone please suggest ?
For the exmaple below assume we are using vg01
#!/bin/ksh
echo "##### Max Mount Count Fixer #####"
echo "Please insert Volume Group name to check"
read VG
lvs |grep $VG | awk {'print $1'} > /tmp/audit.log
... (2 Replies)
Hi All,
I'm trying to figure out which are the trusted-ips and which are not using a script file.. I have a file named 'ip-list.txt' which contains some ip addresses and another file named 'trusted-ip-list.txt' which also contains some ip addresses. I want to read a line from... (4 Replies)
Hello,
I need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line... An example of entries in the file would be:
SRVXPAPI001 ERRO JUN24 07:28:34 1775
REASON= 0000, PROCID= #E506 #1065: TPCIPPR, INDEX= 003F
... (8 Replies)
Hi all,
I have a log file say Test.log that gets updated continuously and it has data in pipe separated format. A sample log file would look like:
<date1>|<data1>|<url1>|<result1>
<date2>|<data2>|<url2>|<result2>
<date3>|<data3>|<url3>|<result3>
<date4>|<data4>|<url4>|<result4>
What I... (3 Replies)
Heyas
With my forum search term 'issue with leading dash' i found 2 closed threads which sadly didnt help me.
Also me was to eager to add the script, that i didnt properly test, and just now figured this issue.
So i have this code:
if ]
then while read line
do line="${line/-/'\-'}"... (7 Replies)
Heyas
I'm trying to read/display a file its content and put borders around it (tui-cat / tui-cat -t(ypwriter).
The typewriter-part is a 'bonus' but still has its own flaws, but thats for later.
So in some way, i'm trying to rewrite cat using bash and other commands.
But sadly it fails on... (2 Replies)
All- We have a performance issue in reading a file line by line. Please find attached scripts for the same. Currently it is taking some 45 min to parse "512444" lines.
Could you please have a look at it and provide any suggestions to improve the performance.
Thanks,
Balu
... (12 Replies)
Discussion started by: balu1729
12 Replies
LEARN ABOUT MOJAVE
jrunscript
jrunscript(1) General Commands Manual jrunscript(1)NAME
jrunscript - command line script shell
SYNOPSIS
jrunscript [ options ] [ arguments... ]
PARAMETERS
options
Options, if used, should follow immediately after the command name.
arguments
Arguments, if used, should follow immediately after options or command name.
DESCRIPTION
jrunscript is a command line script shell. jrunscript supports both an interactive (read-eval-print) mode and a batch (-f option) mode of
script execution. This is a scripting language independent shell. By default, JavaScript is the language used, but the -l option can be
used to specify a different language. Through Java to scripting language communication, jrunscript supports "exploratory programming"
style.
NOTE: This tool is experimental and may not be available in future versions of the JDK.
OPTIONS -classpath path
Specify where to find the user's .class files that are accessed by the script.
-cp path
This is a synonym for -classpath path
-Dname=value
Set a Java system property.
-Jflag
Pass flag directly to the Java virtual machine on which jrunscript is run.
-l language
Use the specified scripting language. By default, JavaScript is used. Note that to use other scripting languages, you also need to spec-
ify the corresponding script engine's jar file using -cp or -classpath option.
-e script
Evaluate the given script. This option can be used to run "one liner" scripts specified completely on the command line.
-encoding encoding
Specify the character encoding used while reading script files.
-f script-file
Evaluate the given script file (batch mode).
-f -
Read and evaluate a script from standard input (interactive mode).
-help
Output help message and exit.
-?
Output help message and exit.
-q
List all script engines available and exit.
ARGUMENTS
If [arguments...] are present and if no -e or -f option is used, then the first argument is the script file and the rest of the arguments,
if any, are passed as script arguments. If [arguments..] and -e or -f option are used, then all [arguments..] are passed as script argu-
ments. If [arguments..], -e and -f are missing, interactive mode is used. Script arguments are available to a script in an engine variable
named "arguments" of type String array.
EXAMPLES
Executing inline scripts
jrunscript -e "print('hello world')"
jrunscript -e "cat('http://java.sun.com')"
Use specified language and evaluate given script file
jrunscript -l js -f test.js
Interactive mode
jrunscript
js>print('hello world');
hello world
js>34 + 55
89
js> thread(function() { print('hello world'); }
hello world
js>
Run script file with script arguments
jrunscript test.js arg1 arg2 arg3
test.js is script file to execute and arg1, arg2 and arg3 are passed to script as script arguments. Script can access these using "argu-
ments" array.
SEE ALSO
If JavaScript is used, then before evaluating any user defined script, jrunscript initializes certain built-in functions and objects. These
JavaScript built-ins are documented in jsdocs.
06 Aug 2006 jrunscript(1)