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I did make the choice of not contributing to this forum anymore shortly after checking out which is why I did not see your reply. Sorry if this comes too late, but I believe you are in violations of...

I appreciate the pointer to the updated code tags by sea. And I also agree with his later comment that mentions that I may have been fixated on a specific tool for my solution. However...

I will...

I have been out for a while, and tags seem to have changed since then. The way I remember it, this site used to be about people responding to questions instead of pointing out duplicity. I will have...

I have a script (ksh) which tries to run a function in parallel for performance gains. I am also trying to limit the number of parallel child processes to avoid overloading the system by using a...

I am sorry it isn't clear from the message, I was replying to the message above which suggested using sequential commands for this. I will try your method and see it if suits my need. Thanks for your...

I am not really running echo statements :) that was just an example. The actual statements are function calls to SQL procedures which can take 10-15 minutes to complete. I want to trigger these in...

Is there any way to trigger a sequence of commands in parallel and capture their output in variables? e.g. something on the following lines


x=`echo "X" &`
y=`echo "Y" &`
z=`echo "Z" &`


so...

The "today -1 day" option is closest to what would help me.

As long as I know the date against which comparison needs to be done, any of the other suggested options would work (including the one...

Well, it is indeed peculiar. I did ask why it was not enabled... And the response I got was it is "not allowed". When I asked why, I got the cryptic answer "for security purposes"... But that is an...

touch -t is not allowed.

Hi,

I want to perform a simple date comparisons, i.e. select all files modified after a certain date (say 12-feb-2011)

I do not have the option of creating a file and using find's -newer...

I have a bunch of files which I need to transfer to another location... and some of these I need to skip.

For e.g. let us say the files are:


cust_abc.dat
cust_xyz.dat
cust_def.dat


and...

How is the level of access on a particular folder determined? I have heard (its just hearsay so am not particularly sure of it) that the access a particular user/group has to a low level directory is...

This definitely helps. I like it very much when someone takes the time to explain the solution, so that it can be applied elsewhere with ease. Thanks a lot!

I want to delete all the blank lines from a file before a certain line number. e.g.

Input file (n: denotes line number)

1: a
2:
3: b
4: c
5:
6: d
I want to delete all blank lines before...

Hi,

I have seen this syntax a few times. Could you please explain, what's the "1" at the end of awk statement doing in this code snippet. Thanks.

I was under the impression that the string (gender) was part of your sample file.

Change the code to :

sed 's/^Male\|^Female/&*/g' file1 | awk -F'\n' '$2 ~ /^Smith/ {print}' RS='*'


For...

Write the search and replace terms to a file say a.txt so that:


cat > a.txt
40101 5555777
40103 4777788
40014 2287457
40111 8877787
40000 7777112


Then,

while read search replace...

I think the first variation should work fine for multiple surnames. Let me explain the solution:


sed 's/(gender)/&*/g' file1 | awk -F'\n' '$2 ~ /^Smith.*/ {print}' RS='*'


1. I appended an...

You do it manually, when you originally code it - so it is easier to find where one loop ends and the other begins. It is also much less of a headache for others trying to understand your code.
...

I don't think I made myself clear. Let me give an example. Suppose the file I have is:


testABCD
jklmn|testDEFGH
klmnoptestABCD


I want the sed command to replace only the first two...

Or this:


#!/bin/ksh

cd ${working_dir}
ls x[1-9] | while read file
do
echo "hello" >> ${file}
done

How can I specify special meaning characters like ^ or $ inside a regex range. e.g

Suppose I want to search for a string that either starts with '|' character or begins with start-of-line...

Wouldn't it be a better solution to simply delete the lines, then renumber all of them from 1 to End of file?

If using shell script is an option


#!/bin/ksh
cnt=$(awk -F'|' '{print NF;exit}' 1)
for i in {1..$(expr ${cnt} - 1)}
do
field=$(cut -d'|' -f${i} 1 | sort -u | tr '\n' ',' | sed 's/,$//g')...