Shell Command xargs

Shell commandsXargs

Build and execute command lines from standard input

Xargs can be readStdinAnd use a space character or line break character as the resolutionStdinData is separatedArguments.

1) Description

Xargs [-0epn] command

Options and parameters:

-0: If the input stdin contains special characters, for example, ', \, when the blank key and other characters, this

-E: This is EOF (end of file) . A string can be followed when xargs when this string is parsed, it stops working!

-P: InArgumentWill ask the user's meaning;

-N: Number of followed calls, each timeCommandWhen executing a command, several parameters are required.

WhenXargsWhen no command is followed, the default isEchoOutput!

2) Example

Cut-d ":"-F1/etc/passwd | tail-N 5 | xargs finger

3) UseXargsThe reason is that many commands do not actually support pipeline commands, so we canXargsTo provide this command referenceStandard Input.

Find./-name Prime. cpp | LS-l // The output is not what we think, becauseLsMPs queue is not supported.

Find./-name Prime. cpp | xargs LS-l

Original

[1]Http://linux.vbird.org/linux_basic/0320bash.php