I'm using Imagemagick to create thumbnails for a large directory tree. The only thing I can't see is how to get it to write the thumbnails to a "thumbs" subdirectory!
Either of these two commands from the Imagemagick site does most of the job:
find -name '*.jpg' | xargs -n1 sh -c 'convert $0... (5 Replies)
Hi,
I could not understand why the following command does not work
find . -name "foo" | xargs rm -i
but,
find . -name "foo" | xargs rm works perfectly alright. (3 Replies)
Dear all,
I have tried the following 2 lines
xargs -t -i -exec grep -i -w {} file_1 >>test < file_2
cat -s file_2| xargs -t -i -exec grep -i -w {} file_1 >> test
They were meant to search for the contents of file_2 in file_1 and write the respective lines of file_1 into file "test" .... (15 Replies)
Hi,
Under my parent diectory I have directory named "Response" in many of its subfolders. I am interested to see all files with extention .pro in Response Directory. I am giving following command -
find . -name "Response" -type d | xargs -i ls -lrt {}/*.pro
but it is not giving result.
... (3 Replies)
Hi
From the xargs man page (Solaris):
ls $1 | xargs -I {} -t mv $1/{} $2/{}
This would move all the files in directory $1 to directory $2
Problem 1:
In a shell script if I want to move files in d1 to d2
dir1=~/d1
dir2=~/d2
ls $dir1 | xargs -I {} -t mv $dir1/{} $dir2/{}
does not... (3 Replies)
Hi
I am trying to use "xargs" command to loop through each file, modify it and overwrite the old file with the modification but with the same file name.
I thought it is easy but I just can't get it to work
I tried the following
I thought {} would give me the current file name, but it... (1 Reply)
hi
Could any one please tell me the option using which we can run multiple commands using xargs
I have list of files, I want to run dos2unix and chmod at one shot on them
I tried google n searched man pages but couldnt really find the solution , please help
right now im doing this
ls... (4 Replies)
I'm trying to pipe the output from a command into another using xargs but is not getting what I want. Running this commands:
find . -name '33_cr*.rod' | xargs -n1 -t -i cut -f5 {} | sort -k1.3n | uniq | wc -l
give the following output:
cut -f5 ./33_cr22.rod
cut -f5 ./33_cr22.rod
...
9224236... (7 Replies)
Using the bash shell I'm trying to either create a command for the command line or a script that will show netstat info for a given process name. Here is an example of what I'm trying to do:$ ps aux |grep catalina |grep -v grep | awk '{print $2}'
5132
$ netstat -nlp |grep 5132
(Not all processes... (11 Replies)
I entered the following <zzz.list xargs showtell |more which does a echo "<<<<<<<<<<<<<<<<<<<<<<<<< $1 >>>>>>>>>>>>>>>>>>"
head -20 $1 The file zzz.list contains 525 lines representing user scripts (1 per line), but only the first, 181st, and 399th lines were processed. What am I missing?
TIA (2 Replies)
Discussion started by: wbport
2 Replies
LEARN ABOUT BSD
xargs
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)