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echo "PID of this script: $$"
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PID of this script: 6583
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#!/bin/bash
echo "PID of this script: $$"
echo "PPID of this script: $PPID"
echo "UID of this script: $UID"
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PID of this script: 6686
PPID of this script: 4656
UID of this script: 1000
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echo "PID of this script: $$"
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PID of this script: 6583
é¤äº$$, bash shellè¿ä¼å¯¼åºå ¶ä»çåªè¯»åéãæ¯å¦ï¼PPIDåå¨åshellç¶è¿ç¨çIDï¼ä¹å°±æ¯ä¸»shellï¼ãUIDåå¨äºæ§è¡è¿ä¸ªèæ¬çå½åç¨æ·IDãæ¯å¦ï¼
#!/bin/bash
echo "PID of this script: $$"
echo "PPID of this script: $PPID"
echo "UID of this script: $UID"
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PID of this script: 6686
PPID of this script: 4656
UID of this script: 1000
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$ man bash
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