mhaupt@1403: # exec script requires -scripting mode
mhaupt@1403: 
mhaupt@1403: /*
mhaupt@1403:  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
mhaupt@1403:  *
mhaupt@1403:  * Redistribution and use in source and binary forms, with or without
mhaupt@1403:  * modification, are permitted provided that the following conditions
mhaupt@1403:  * are met:
mhaupt@1403:  *
mhaupt@1403:  *   - Redistributions of source code must retain the above copyright
mhaupt@1403:  *     notice, this list of conditions and the following disclaimer.
mhaupt@1403:  *
mhaupt@1403:  *   - Redistributions in binary form must reproduce the above copyright
mhaupt@1403:  *     notice, this list of conditions and the following disclaimer in the
mhaupt@1403:  *     documentation and/or other materials provided with the distribution.
mhaupt@1403:  *
mhaupt@1403:  *   - Neither the name of Oracle nor the names of its
mhaupt@1403:  *     contributors may be used to endorse or promote products derived
mhaupt@1403:  *     from this software without specific prior written permission.
mhaupt@1403:  *
mhaupt@1403:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
mhaupt@1403:  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
mhaupt@1403:  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
mhaupt@1403:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
mhaupt@1403:  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
mhaupt@1403:  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
mhaupt@1403:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
mhaupt@1403:  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
mhaupt@1403:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
mhaupt@1403:  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
mhaupt@1403:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mhaupt@1403:  */
mhaupt@1403: 
mhaupt@1403: // The $EXEC builtin function can be used to run external commands:
mhaupt@1403: $EXEC("ls")
mhaupt@1403: $EXEC("ls -la")
mhaupt@1403: 
mhaupt@1403: // It can also be given a string to use as stdin:
mhaupt@1403: $EXEC("cat", "Hello, world!")
mhaupt@1403: 
mhaupt@1403: // Additional arguments can be passed after the stdin argument, as an array of
mhaupt@1403: // strings, or a sequence of varargs:
mhaupt@1403: $EXEC("ls", "" /* no stdin */, "-l", "-a")
mhaupt@1403: $EXEC("ls", "" /* no stdin */, ["-l", "-a"])
mhaupt@1403: 
mhaupt@1403: // Output of running external commands is returned from $EXEC:
mhaupt@1403: print($EXEC("ls"))
mhaupt@1403: 
sundar@1405: // apply on $EXEC
sundar@1405: print($EXEC.apply(this, ["ls"]));