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more description on xargs show limits

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add output form the command `xargs --show-limits`
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Bonnie I-Man Ng 2019-10-20 00:26:26 +08:00 committed by GitHub
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@ -712,9 +712,16 @@ rm `find . -name "*.html"`
find . -name "*.c" -print0|xargs -0 rm -rf
```
##### Show limits
##### Show limits on command-line length
```bash
xargs --show-limits
# Output from my Ubuntu:
# Your environment variables take up 3653 bytes
# POSIX upper limit on argument length (this system): 2091451
# POSIX smallest allowable upper limit on argument length (all systems): 4096
# Maximum length of command we could actually use: 2087798
# Size of command buffer we are actually using: 131072
# Maximum parallelism (--max-procs must be no greater): 2147483647
```
##### Move files to folder