pid - Online Linux Manual PageSection : n
Updated : 7.0
Source : Tcl
Note : Tcl Built-In Commands

---

NAMEpid − Retrieve process identifiers

---

SYNOPSISpid ?fileId? .\}

---

DESCRIPTIONIf the fileId argument is given then it should normally refer to a process pipeline created with the open command. In this case the pid command will return a list whose elements are the process identifiers of all the processes in the pipeline, in order. The list will be empty if fileId refers to an open file that is not a process pipeline. If no fileId argument is given then pid returns the process identifier of the current process. All process identifiers are returned as decimal strings.

---

EXAMPLEPrint process information about the processes in a pipeline using the SysV ps program before reading the output of that pipeline: set pipeline [open "| zcat somefile.gz | grep foobar | sort -u"] # Print process information exec ps -fp [pid $pipeline] >@stdout # Print a separator and then the output of the pipeline puts [string repeat - 70] puts [read $pipeline] close $pipeline

---

SEE ALSOexec(n), open(n)

---

KEYWORDSfile, pipeline, process identifier 0

---

Johanes Gumabo

---

Data Size   :   5,812 byte
man-pid.nBuild   :   2024-12-05, 20:55   :  
Visitor Screen   :   x
Visitor Counter ( page / site )   :   3 / 199,632
Visitor ID   :     :  
Visitor IP   :   3.22.27.41   :  
Visitor Provider   :   AMAZON-02   :  
Provider Position ( lat x lon )   :   39.962500 x -83.006100   :   x
Provider Accuracy Radius ( km )   :   1000   :  
Provider City   :   Columbus   :  
Provider Province   :   Ohio ,   :   ,
Provider Country   :   United States   :  
Provider Continent   :   North America   :  
Visitor Recorder   :   Version   :  
Visitor Recorder   :   Library   :  
Online Linux Manual Page   :   Version   :   Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.05
Online Linux Manual Page   :   Library   :   lib_c - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Online Linux Manual Page   :   Library   :   lib_m - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Data Base   :   Version   :   Online Linux Manual Page Database - 24.04.13 - march=x86-64 - mtune=generic - fedora-38
Data Base   :   Library   :   lib_c - 23.02.07 - march=x86-64 - mtune=generic - fedora.36

---

Very long time ago, I have the best tutor, Wenzel Svojanovsky . If someone knows the email address of Wenzel Svojanovsky , please send an email to johanes_gumabo@yahoo.co.id .

---

If error, please print screen and send to johanes_gumabo@yahoo.co.id
Under development. Support me via PayPal.

---

ERROR : Need New Coding :         (rof_escape_sequence_block|26|(null)|(null)|-1|140)         (parse_manual_page_|249|pid.n|282/140|══─}─══|.══─}─══ )         (htmlprn|149|pid.n|282/140|.══─}─══|.══─}─══ )         (rof_escape_sequence|91|pid.n|282/141|\}|.\} )         (parse_manual_page_|249|pid.n|282/141|\}|.\} )    

---