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Submitted by:
lvo |
coolcommand
xargs - build and execute command lines from stdin |
Description
xargs allow you to build and execute command lines from standard input:
To find all files edited today and pipe to pr and then to printing:
# find . -type f -mtime -1 -print | xargs pr -n | lp
To find all unique owners of all files in /bin:
# find /bin -type f -follow | xargs ls -al | awk ' NF==9 {print $3}' | sort -u
To find all files with .txt extension, echo name and then delete:
# find . -type f -name "*.txt" | xargs -i ksh -c "echo deleting {}; rm {}"
To find all files with .txt extension, echo name and then delete
# find . -type f -name "*.txt" | xargs -I ksh -c "echo deleting {}; rm {}"
Creates in usr/project directory a copy of current working directory structure:
# find . -type d -print | sed 's@^@/usr/project@' | xargs mkdir
Output of both commands on one line:
# (logname; date) | xargs
Places all file names in current dir on one line and redirects to file:
# ls | xargs echo > file.ls
Display contents of file.ls to stdout, one name per line:
# cat file.ls | xargs -n1
List current dir, prompt user to remove each file individually:
# ls | xargs -p -n1 rm
Concatenate all contents of all files whose names are contained in file:
# xargs cat < file > file.contents
Move all files from dir $1 to dir $2 and echo each move as it happens (-t option)
# ls $1 | xargs -I {} -t mv $1/{} $2/{} |
Example
xargs |
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Monday September 6, 2010
