07-06-2011
Hi, newreverie:
Welcome to the forum.
I'd be interested in seeing to what that shell script is comparitively blazingly fast. I'm inclined to believe that your find solution was suboptimal if that shell script, executing those pipelines for each visited directory, is faster.
If you are not familiar with AWK, you might enjoy the challenge of learning enough of it to simplify the egrep|sed|cut|head|tail pipeline to one concise AWK invocation.
Performance and efficiency aside, there are some potentially serious issues with that code. One that stands out: if a directory is deleted between the time $numdirectories is calculated and the subsequent while loop concludes, entire subtrees of the hierarchy will be visited more than once (a result of the input to head being shorter than expected). Depending on what's being done with each of the files, this could be deal breaker.
Again, welcome to the forum and thanks for the contribution.
Regards,
Alister
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hey Guyz I have a requirement something like this..
a part of file name, date of modification of that file and a text is entered as input.
like
Date : 080206 (MMDDYY format.)
filename : hotel_rates
text : Jim
now the file hotel_rates.ZZZ.123 (creation date is Aug 02 2006) should be... (10 Replies)
Discussion started by: rosh0623
10 Replies
2. UNIX for Dummies Questions & Answers
Hi
i need to print pathname in which the string present using 'find' command
sample output like this
Pathname String to be searched
---------- --------------------
/usr/test/myfile get
/opt/test/somefile get
Thanks in... (4 Replies)
Discussion started by: princein
4 Replies
3. Shell Programming and Scripting
Hi,
Am trying for a script which should delete more than 15 days older files in my current directory.Am using the below piece of code:
"find /tmp -type f -name "pattern" -mtime +15 -exec /usr/bin/ls -altr {} \;"
"find /tmp -type f -name "pattern" -mtime +15 -exec /usr/bin/rm -f {} \;"
... (9 Replies)
Discussion started by: puppala
9 Replies
4. Shell Programming and Scripting
Hi,
I have a command "get_data" with some parameters in few *.text files of a directory. I want to first find those files that contain this command and then append the following parameter to the end of the command.
example of an entry in the file :-
get_data -x -m50 /etc/web/getid
this... (1 Reply)
Discussion started by: PrasannaKS
1 Replies
5. UNIX for Dummies Questions & Answers
Hi All,
I am trying to delete file (with a mtime older than 2 days) from the current directory ONLY using:
find . -daystart -maxdepth 1 -mtime 2 -exec rm {} \;
but this doesn't seem to work it is still find files in subdirectories which I don't want to delete.
Please can anyone offer... (2 Replies)
Discussion started by: daveu7
2 Replies
6. Shell Programming and Scripting
Hi Forum,
I am using the below command to find files older than x days in a directory excluding subdirectories. From the previous forums I got to know that prune command helps us not to descend in subdirectories. Though I am using it here, not getting the desired result.
cd $dir... (8 Replies)
Discussion started by: jhilmil
8 Replies
7. Shell Programming and Scripting
hello, all
I have googled internet, read the man page of Find, searched this forum, but still could not figure out how.
My current directory is:
little@wenwen:~$ pwd
/home/little
little@wenwen:~$
I want to use find command to list the files in my current directory, how should i write... (3 Replies)
Discussion started by: littlewenwen
3 Replies
8. UNIX for Dummies Questions & Answers
Hi All
I have a requirement to find the file that are most latest to be modified in each directory. Can somebody help with the command please?
E.g of the problem.
The directory A is having sub directory which are having subdirectory an so on.
I need a command which will find the... (2 Replies)
Discussion started by: sudeep.id
2 Replies
9. UNIX for Dummies Questions & Answers
Hi,
Is there any way to use find command and search only specific subdirectories in a directory.
for example
/home/d1
/home/d2
/home/d3
i want to search in the following directories
/home
/home/d1
/home/d2
i do not want the find command to search the /home/d3 directory. (6 Replies)
Discussion started by: Little
6 Replies
10. Shell Programming and Scripting
I'm trying to find folders created by a propritary data aquisition software with the .aps ending--yes, I have never encountered folder with a suffix before (some files also end in .aps) and sort them by date. I need the whole path
ls -dt "$dataDir"*".aps"does exactly what I want except for the... (2 Replies)
Discussion started by: Michael Stora
2 Replies
IGAWK(1) Utility Commands IGAWK(1)
NAME
igawk - gawk with include files
SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ...
igawk [ all gawk options ] [ -- ] program-text file ...
DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).
AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like
@include getopt.awk
in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.
OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports.
EXAMPLES
cat << EOF > test.awk
@include getopt.awk
BEGIN {
while (getopt(ARGC, ARGV, "am:q") != -1)
...
}
EOF
igawk -f test.awk
SEE ALSO
gawk(1)
Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.
AUTHOR
Arnold Robbins (arnold@skeeve.com).
Free Software Foundation Nov 3 1999 IGAWK(1)