06-01-2006
Is there a way to make this find job run as one process, more efficiently?
Hi, unixers, I'm doing something like
find -type f -name '*.gif' | xargs rm &
find -type f -user root | xargs chown idealo &
wait
#do more stuff
on a very large dir. I'm thinking this would be more efficient if it was running as a single process that did one thing for the first condition, another thing for the other condition. I could do this with perl (File::Find), but I'm wondering if there's an elegant solution with bash.
thanks for any insight!
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
Thanks in advance.
i need to kill a unix background running job after that job process completes.
i can kill a job by giving the following unix command
kill -9 processid
how to kill the job after the current process run gets completed ?
Appreciate your valuable help.
... (1 Reply)
Discussion started by: dtazv
1 Replies
2. Solaris
Hi,
Thanks in advance.
i need to kill a unix background running job after that job process completes.
i can kill a job by giving the following unix command
kill -9 processid
how to kill the job after the current process run gets completed ?
Appreciate your valuable help.
Thanks... (7 Replies)
Discussion started by: dtazv
7 Replies
3. Shell Programming and Scripting
how to start a process and make it sleep for 5 mins and then kill that process (6 Replies)
Discussion started by: shrao
6 Replies
4. UNIX for Advanced & Expert Users
I've tried this a long time ago and was successful but could not remember how i did it. Tried ctrl+Z and then used bg %
could not figure what i did after to keep it no hangup -
not sure if used nohup -p pid, can u plz help me out if this can be done.
Any help will be appreciated. (12 Replies)
Discussion started by: pharos467
12 Replies
5. Shell Programming and Scripting
Hello,
I have a process a.out that runs from /a and /b
How can I get the pid of the one running from /a
ps -C /a/a.out
does not work
Thanks! (4 Replies)
Discussion started by: JCR
4 Replies
6. UNIX for Advanced & Expert Users
Hi,
I want to write a script which should be run only on foreground. Is there any way that the script can check itself whether it was run using nohup or ksh and if the user runs the script using nohup then it should prompt the user to run it using ksh?
If (The user triggers the script using... (4 Replies)
Discussion started by: RRVARMA
4 Replies
7. Shell Programming and Scripting
Hi All,
I have two ksh script. 1st script calls the 2nd script and the second script calls an 'C' program.
I want 1st script to wait until the 'C' program completes.
I cant able to get the process id for the 'C' program (child process) to make the 1st script to wait for the second... (7 Replies)
Discussion started by: sennidurai
7 Replies
8. Shell Programming and Scripting
Hi,
I am using net::ftp for transferring files now i am trying in the same Linux server as a result ftp is very fast but if the server is other location (remote) then the file transferred will be time consuming.
So i want try putting FTP part as a background process. I am unaware how to do... (5 Replies)
Discussion started by: vanitham
5 Replies
9. Shell Programming and Scripting
Hi guys,
I have written a script that waits for a trigger file.
Then checks the time of the trigger.
if the trigger finished between 8pm and midnight then runs a job.
else it waits till 1am then runs a different job.
I am still very new to scripting so any suggestions to improve my... (4 Replies)
Discussion started by: twinion
4 Replies
10. Shell Programming and Scripting
Hi,
I have written a menu driven shell script in which as per the choice, I run the another script on background.
For eg:
1. get info
2)process info
3)modify info
All the operations have different scripts which i schedule in background using &.
However I wish to display the error... (0 Replies)
Discussion started by: ashima jain
0 Replies
XARGS(1) General Commands Manual XARGS(1)
NAME
xargs - construct argument list(s) and execute utility
SYNOPSIS
xargs [ -t ][[ -x ] -n number ][ -s size ][ utility [ arguments... ]]
DESCRIPTION
The xargs utility reads space, tab, newline and end-of-file delimited arguments from the standard input and executes the specified utility
with them as arguments.
The utility and any arguments specified on the command line are given to the utility upon each invocation, followed by some number of the
arguments read from standard input. The utility is repeatedly executed until standard input is exhausted.
Spaces, tabs and newlines may be embedded in arguments using single (`` ' '') or double (``"'') quotes or backslashes (``''). Single
quotes escape all non-single quote characters, excluding newlines, up to the matching single quote. Double quotes escape all non-double
quote characters, excluding newlines, up to the matching double quote. Any single character, including newlines, may be escaped by a back-
slash.
The options are as follows:
-n number Set the maximum number of arguments taken from standard input for each invocation of the utility. An invocation of utility will
use less than number standard input arguments if the number of bytes accumulated (see the s option) exceeds the specified size or
there are fewer than number arguments remaining for the last invocation of utility. The current default value for number is
5000.
-s size Set the maximum number of bytes for the command line length provided to utility. The sum of the length of the utility name and
the arguments passed to utility (including /dev/null terminators) will be less than or equal to this number. The current default
value for size is ARG_MAX - 2048.
-t Echo the command to be executed to standard error immediately before it is executed.
-x Force xargs to terminate immediately if a command line containing number arguments will not fit in the specified (or default)
command line length.
If no utility is specified, echo(1) is used.
Undefined behavior may occur if utility reads from the standard input.
The xargs utility exits immediately (without processing any further input) if a command line cannot be assembled, utility cannot be
invoked, an invocation of the utility is terminated by a signal or an invocation of the utility exits with a value of 255.
The xargs utility exits with a value of 0 if no error occurs. If utility cannot be invoked, xargs exits with a value of 127. If any other
error occurs, xargs exits with a value of 1.
SEE ALSO
echo(1), find(1)
STANDARDS
The xargs utility is expected to be IEEE Std 1003.2("POSIX") compliant.
June 6, 1993 XARGS(1)