Synchronet v3.21e-Win32 (install) has been released (Mar-2026).

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util:jsexec [2018/01/10 16:37] – [Module] Make note about relative paths and cwd. digital manutil:jsexec [2022/03/06 15:19] (current) – [Module] Add Log Level section digital man
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 <file> <file>
-usage: jsexec [-opts] [path]module[.js] [args]+usage: jsexec [-opts] [[path/]module[.js] [args] 
 +   or: jsexec [-opts] -r js-expression [args] 
 +   or: jsexec -v
  
 available opts: available opts:
  
-        -c<ctrl_dir>   specify path to Synchronet CTRL directory +    -r<expression> run (compile and execute) JavaScript expression 
-        -m<bytes>      set maximum heap size (default=8388608 bytes) +    -c<ctrl_dir>   specify path to Synchronet CTRL directory 
-        -s<bytes>      set context stack size (default=16384 bytes) +    -C             do not change the current working directory (to CTRL dir) 
-        -S<bytes>      set thread stack limit (default=262144, 0=unlimited) +    -d             run in background (daemonize) 
-        -b<limit>      set branch limit (default=99999999, 0=unlimited) +    -m<bytes>      set maximum heap size (default=16777216 bytes) 
-        -y<interval>   set yield interval (default=10000, 0=never) +    -t<limit>      set time limit (default=864000, 0=unlimited) 
-        -g<interval>   set garbage collection interval (default=100, 0=never) +    -y<interval>   set yield interval (default=10000, 0=never) 
-        -h[hostname]   use local or specified host name (instead of SCFG value) +    -g<interval>   set garbage collection interval (default=100, 0=never) 
-        -u<mask>       set file creation permissions mask (in octal) +    -h[hostname]   use local or specified host name (instead of SCFG value) 
-        -L<level>      set log level (default=7) +    -u<mask>       set file creation permissions mask (in octal) 
-        -E<level>      set error log level threshold (default=4) +    -L<level>      set log level (default=6) 
-        -i<path_list>  set load() comma-sep search path list (default="load") +    -E<level>      set error log level threshold (default=4) 
-        -f             use non-buffered stream for console messages +    -i<path_list>  set load() comma-sep search path list (default="load") 
-        -a             append instead of overwriting message output files +    -f             use non-buffered stream for console messages 
-        -e<filename>   send error messages to file in addition to stderr +    -a             append instead of overwriting message output files 
-        -o<filename>   send console messages to file instead of stdout +    -A             send all messages to stdout 
-        -n             send status messages to NUL instead of stderr +    -A<filename>   send all messages to file instead of stdout/stderr 
-        -q             send console messages to NUL instead of stdout +    -e<filename>   send error messages to file in addition to stderr 
-        -v             display version details and exit +    -o<filename>   send console messages to file instead of stdout 
-        -x             disable auto-termination on local abort signal +    -S<filename>   send status messages to file instead of stderr 
-        -l             loop until intentionally terminated +    -S             send status messages to stdout 
-        -p             wait for keypress (pause) on exit +    -n             send status messages to /dev/null instead of stderr 
-        -!             wait for keypress (pause) on error+    -q             send console messages to /dev/null instead of stdout 
 +    -v             display version details and exit 
 +    -x             disable auto-termination on local abort signal 
 +    -l             loop until intentionally terminated 
 +    -p             wait for keypress (pause) on exit 
 +    -!             wait for keypress (pause) on error 
 +    -D             load the script into an interactive debugger
 </file> </file>
  
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 **Note:** **Note:**
 When JSexec starts up, it changes its **current working directory** to the Synchronet ''[[dir:ctrl]]'' directory. If you pass filenames on the command-line to a module, the paths must be full/absolute paths or relative to the Synchronet ''[[dir:ctrl]]'' directory. When JSexec starts up, it changes its **current working directory** to the Synchronet ''[[dir:ctrl]]'' directory. If you pass filenames on the command-line to a module, the paths must be full/absolute paths or relative to the Synchronet ''[[dir:ctrl]]'' directory.
 +
 +==== Log Level ==== 
 +
 +The log severity/output verbosity level can be controlled via the ''[[dir:ctrl]]/[[config:jsexec.ini]]'' file or specified using the ''-L'' command-line option. The value following ''-L'' can either be the numeric log level (''7'' being the lowest-severity / most verbose output) or a [[http://wiki.synchro.net/config:ini_files#enumerated_values|word]] describing the log level (e.g. ''-Ldebug'' for debug-level logput).
 ===== Additional Properties ===== ===== Additional Properties =====
  
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 JSexec includes an instance of a special User Interface class called ''uifc''. JSexec includes an instance of a special User Interface class called ''uifc''.
  
-FIXME+See the [[ref:UIFC]] reference page for more details.
  
 ===== shebang ===== ===== shebang =====
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 This allows JSexec scripts to be executed easily via [[:howto:apache|CGI]] as well as other command-line conveniences on Unix-like operating systems. This allows JSexec scripts to be executed easily via [[:howto:apache|CGI]] as well as other command-line conveniences on Unix-like operating systems.
  
 +===== Output =====
 +
 +JSexec supports multiple output methods and streams:
 +
 +  - **Error** (default stream: ''stderr'')\\ JS ''log()'' messages with log-levels of ''LOG_ERR'' or lower
 +  - **Status** (default stream: ''stderr'')\\ JS ''log()'' messages with log-levels higher than ''LOG_ERR''\\ JSexec startup/compile/shutdown progress messages
 +  - **Console** (default stream: ''stdout'')\\ JS ''write()'' ''writeln()'' ''printf()'' ''alert()'' and ''prompt()'' messages
 +
 +==== syslog ====
 +
 +When JSexec is executed on *nix operating systems with the ''-d'' (Daemonize) option, all JS ''log()'' messages are directed to ''syslog''.
 +
 +==== Suppression ====
 +  * **Status** output is suppressed by default when JSexec is run without a controlling TTY. This behavior can be overridden with the ''-A'' and ''-S'' command-line options.
 +  * **Status** output can be manually suppressed with the ''-n'' (Null) command-line option.
 +  * **Console** output can be suppressed with the ''-q'' (Quiet) command-line option. 
 +
 +==== Redirection ====
 +  * The output streams may be redirected to specific filenames via command-line options.
 +  * **Error** output can be forked to both ''stderr'' and a specified filename via the ''-e'' command-line option.
 ===== See Also ===== ===== See Also =====
   * [[custom:javascript|JavaScript]]   * [[custom:javascript|JavaScript]]
 +  * [[:config:jsexec.ini]]
   * [[:howto:apache|How To Use Apache HTTP Server with Synchronet]]   * [[:howto:apache|How To Use Apache HTTP Server with Synchronet]]
   * [[:util:|Utilities]]   * [[:util:|Utilities]]
  
 {{tag>javascript jsexec customization}} {{tag>javascript jsexec customization}}

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