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  1. #!/bin/bash
  2. seq 5 | xargs echo
  3. ( seq 5 | 4<&0 0<&3 xargs -a /dev/fd/4 echo ) 3<&0
  4. xargs -a <( seq 5 ) echo
  5.  
  6. # stdin接続先比較
  7. ls -l /proc/self/fd/0
  8. cat /dev/null | xargs ls -l /proc/self/fd/0
  9. ( cat /dev/null | 4<&0 0<&3 xargs -a /dev/fd/4 ls -l /proc/self/fd/0 ) 3<&0
  10. xargs -a <( cat /dev/null ) ls -l /proc/self/fd/0
Success #stdin #stdout 0s 4388KB
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stdin
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Standard input is empty
stdout
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1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
lr-x------ 1 20124 1000 64 Nov 13 23:51 /proc/self/fd/0 -> /usr/local/spoj-ideone/checker-2/tmp/stdin
lr-x------ 1 20124 1000 64 Nov 13 23:51 /proc/self/fd/0 -> /dev/null
lr-x------ 1 20124 1000 64 Nov 13 23:51 /proc/self/fd/0 -> /usr/local/spoj-ideone/checker-2/tmp/stdin
lr-x------ 1 20124 1000 64 Nov 13 23:51 /proc/self/fd/0 -> /usr/local/spoj-ideone/checker-2/tmp/stdin
https://ideone.com/8rivsn
xargs -a test
language:
Bash (bash 5.0.3)
created:
4 years ago
visibility:
public

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