09-29-2005
xargs doubt
Hi
Is there any way to append constant string with arguments generated by xargs..
Like I want to delete some files .. where in I have to add directory also ...
ex : echo $fileName | xargs rm $Dir/ValuesFromls
Here I have to append Directory name with filename...
Shihab
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi there,
I am trying to move around 3000 files from one directory to another. The mv command is complaining from too many arguments. I tried to use the xargs command but with no luck. Could some body provide help?
Regards (4 Replies)
Discussion started by: JimJim
4 Replies
2. Shell Programming and Scripting
hi ,
can anyone help me by saying why we use xargs.. is it acing like a place holder..?
thanks,
Krips. (3 Replies)
Discussion started by: kripssmart
3 Replies
3. UNIX for Advanced & Expert Users
I discovered that GNU's xargs has a -P option to allow its processes to run in parallel. Great! Is this a GNU thing, or is it supported by other platforms as well? (4 Replies)
Discussion started by: otheus
4 Replies
4. Shell Programming and Scripting
hi
i just want to know that how do we use xargs command to find files which are greater than specified memory
in a given directory (6 Replies)
Discussion started by: sumit the cool
6 Replies
5. Shell Programming and Scripting
Hi,
I have a requirement to RCP the files from remote server to local server.
Also the RCP has to run in parallel. However using 'xargs' retrives 2 file names during each loop. How do we restrict to only one file name using xargs and loop till remaining files.
I use the below code for... (2 Replies)
Discussion started by: senthil3d
2 Replies
6. Shell Programming and Scripting
Hello there,
Let me show you a simple example of what I am trying to achieve:
1) I have an input text file with some lines:
1 a
2 b
3 c
2) And I want to run a command with these lines as arguments (+ arbitrary extra arguments). For example:
$ command "1 a" "2 b" "3 c" "bye"
I... (7 Replies)
Discussion started by: tokland
7 Replies
7. Shell Programming and Scripting
Hi,
What is the difference in capitalizing the option 'i' of xargs command, (i.e) xargs -i and xargs -I?
Also, what is the difference between the below 2 commands?
output_from_cmd | xargs -I {} grep '{}' file
output_from_cmd | xargs -I grep '{}' file
Any efficiency or performance... (4 Replies)
Discussion started by: royalibrahim
4 Replies
8. Shell Programming and Scripting
I have dir with many files ( close to 4M ) .
$ ls -la
total 76392
drwxr-xr-x 10 oracle dba 512 Jun 06 14:39 .
drwxr-xr-x 11 oracle dba 512 Dec 20 13:21 ..
drwxr-xr-x 2 oracle dba 39074816 Jun 15 14:07 ad
I am trying to delete them using... (8 Replies)
Discussion started by: talashil
8 Replies
9. Shell Programming and Scripting
Hello, I need some help with xargs
$ ls
aaa bbb ccc ddd$ ls | xargs -I{} ls -la {}
-rw-rw-r--. 1 xxx xx 0 May 30 20:04 aaa
-rw-rw-r--. 1 xxx xx 0 May 30 20:04 bbb
-rw-rw-r--. 1 xxx xx 0 May 30 20:04 ccc
-rw-rw-r--. 1 xxx xx 0 May 30 20:04 dddit's possible to have output like this with... (3 Replies)
Discussion started by: vikus
3 Replies
10. UNIX for Dummies Questions & Answers
Hi,
can anyone tell me in detail ?
what the following do in detail ?
I am trying to get a largest number in a list
Thanks
Tao
LARGEST=$(echo $* | xargs -n1 | sort -nr | tail -1) (3 Replies)
Discussion started by: ccp
3 Replies
LEARN ABOUT MOJAVE
mdfind
mdfind(1) BSD General Commands Manual mdfind(1)
NAME
mdfind -- finds files matching a given query
SYNOPSIS
mdfind [-live] [-count] [-onlyin directory] [-name fileName] query
DESCRIPTION
The mdfind command consults the central metadata store and returns a list of files that match the given metadata query. The query can be a
string or a query expression.
The following options are available:
-0 Prints an ASCII NUL character after each result path. This is useful when used in conjunction with xargs -0.
-live Causes the mdfind command to provide live-updates to the number of files matching the query. When an update causes the query
results to change the number of matches is updated. The find can be cancelled by typing ctrl-C.
-count Causes the mdfind command to output the total number of matches, instead of the path to the matching items.
-onlyin dir
Limit the scope of the search to the directory specified.
-name fileName
Searches for matching file names only.
-literal Force the provided query string to be taken as a literal query string, without interpretation.
-interpret Force the provided query string to be interpreted as if the user had typed the string into the Spotlight menu. For example, the
string "search" would produce the following query string:
(* = search* cdw || kMDItemTextContent = search* cdw)
EXAMPLES
The following examples are shown as given to the shell.
This returns all files with any metadata attribute value matching the string "image":
mdfind image
This returns all files that contain "MyFavoriteAuthor" in the kMDItemAuthor metadata attribute:
mdfind "kMDItemAuthors == '*MyFavoriteAuthor*'"
This returns all files with any metadata attribute value matching the string "skateboard". The find continues to run after gathering the
initial results, providing a count of the number of files that match the query.
mdfind -live skateboard
To get a list of the available attributes for use in constructing queries, see mdimport(1), particularly the -X switch.
SEE ALSO
mdimport(1), mdls(1), mdutil(1), xargs(1)
Mac OS X June 10, 2004 Mac OS X