I don't think this is specific to catalina. In my example, catalina was just an example of a program I was searching for. the output is actually coming from ps -aux. So, it looks like it would always be column 2 unless ps was configured to reorder the columns.
Oh, I thought you were somehow extracting port numbers from ps. PID's make more sense.
But if all you want is PID's, pgrep does everything in one shot without the grep -v grep problem. It's also more portable than ps aux AFAIK.
Quote:
Also, is there a way to do this with xargs?
xargs isn't applicable here; it's not a shell, it doesn't run pipe chains. Running netstat 12 times to find 12 different PID's would be silly, anyway.
Cramming everything into one line doesn't necessarily make it simpler or more efficient.
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)
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)
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)
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)
hi
Could any one please tell me the option using which we can run multiple commands using xargs
I have list of files, I want to run dos2unix and chmod at one shot on them
I tried google n searched man pages but couldnt really find the solution , please help
right now im doing this
ls... (4 Replies)
Dear all ,
any suggest on xargs to combine from (1.txt and 2.txt) to output.txt ?
thanks a lot.
1.txt
0123 BUM-5M BUM-5M 93490481 63839
0124 BUM-5M BUM-5M 112112 ... (3 Replies)
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)
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 FREEBSD
ldd
LDD(1) BSD General Commands Manual LDD(1)NAME
ldd -- list dynamic object dependencies
SYNOPSIS
ldd [-a] [-v] [-f format] program ...
DESCRIPTION
The ldd utility displays all shared objects that are needed to run the given program or to load the given shared object. Contrary to nm(1),
the list includes ``indirect'' dependencies that are the result of needed shared objects which themselves depend on yet other shared objects.
Zero, one or two -f options may be given. The argument is a format string passed to rtld(1) and allows customization of ldd's output. If
one is given, it sets LD_TRACE_LOADED_OBJECTS_FMT1. If two are given, they set LD_TRACE_LOADED_OBJECTS_FMT1 and
LD_TRACE_LOADED_OBJECTS_FMT2, respectively. See rtld(1) for details, including a list of recognized conversion characters.
The -a option displays the list of all objects that are needed by each loaded object. This option does not work with a.out(5) binaries.
The -v option displays a verbose listing of the dynamic linking headers encoded in the executable. See the source code and include files for
the definitive meaning of all the fields.
EXAMPLES
The following is an example of a shell pipeline which uses the -f option. It will print a report of all ELF binaries in the current direc-
tory, which link against libc.so.6:
find . -type f | xargs -n1 file -F ' ' | grep ELF | cut -f1 -d' ' | xargs ldd -f '%A %o
' | grep libc.so.6
SEE ALSO ld(1), nm(1), rtld(1)HISTORY
A ldd utility first appeared in SunOS 4.0, it appeared in its current form in FreeBSD 1.1.
The -v support is based on code written by John Polstra <jdp@polstra.com>
BSD May 15, 2008 BSD