Linux command
xe 命令
文本
涉及管道、覆盖或删除，执行前请先确认路径和参数。
常用示例
Run command for each line of stdin
cat [list.txt] | xe [command]
Use {} as placeholder for the argument
cat [list.txt] | xe [command] {}
Parallel execution with N jobs
cat [urls.txt] | xe -j [4] curl {}
Pass arguments directly after --
xe -a -- mv {} {}.bak -- [file1] [file2]
Null-separated input (for filenames with spaces)
find . -print0 | xe -0 echo {}
Pass up to N arguments per command
xe -N [10] rm -- [*.txt]
Dry-run: print commands without executing
cat list.txt | xe -n [command] {}
说明
xe is a tool for constructing command lines from file listings or arguments, combining the best features of xargs(1) and apply(1). By default it runs the given command once per input line, substituting {} with the argument, making common use cases simpler than xargs. Unlike xargs, xe has sane defaults: it is equivalent to `xargs -d'\n' -I{} -n1 -r`. Arguments can be read from stdin (default), from a file with -f, or directly from the command line after -a. xe supports parallel execution with -j, make-style percent rule matching with -p, and can invoke a shell script per argument with -s.
参数
- -0
- Input arguments are separated by NUL bytes instead of newlines. Useful with `find -print0`.
- -a
- Take arguments from the command line (after the command, separated by --) instead of stdin.
- -A _argsep_
- Use a custom argument separator instead of -- (implies -a).
- -f _argfile_
- Read arguments from _argfile_ instead of stdin.
- -F
- Fatal: stop and exit when a command execution fails.
- -I _replace-arg_
- Set the replacement string (default: {}).
- -j _maxjobs_
- Run up to _maxjobs_ processes concurrently.
- -L
- Line-buffered output so lines from concurrent jobs do not interleave.
- -N _maxargs_
- Pass up to _maxargs_ arguments to each command invocation (default: 1).
- -n
- Dry-run: print the commands that would be executed without running them.
- -p
- Make-style percent rule matching for pattern-dispatched commands.
- -q
- Quiet: redirect stdout/stderr of commands to /dev/null.
- -R
- Return exit status 122 when no arguments are supplied (instead of 0).
- -s _shellscript_
- Execute _shellscript_ via the shell; arguments are available as $1, $2, etc.
- -v
- Verbose: print commands to stderr before running them.
FAQ
What is the xe command used for?
xe is a tool for constructing command lines from file listings or arguments, combining the best features of xargs(1) and apply(1). By default it runs the given command once per input line, substituting {} with the argument, making common use cases simpler than xargs. Unlike xargs, xe has sane defaults: it is equivalent to `xargs -d'\n' -I{} -n1 -r`. Arguments can be read from stdin (default), from a file with -f, or directly from the command line after -a. xe supports parallel execution with -j, make-style percent rule matching with -p, and can invoke a shell script per argument with -s.
How do I run a basic xe example?
Run `cat [list.txt] | xe [command]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -0 do in xe?
Input arguments are separated by NUL bytes instead of newlines. Useful with `find -print0`.