Building simple shell script which executes program passed as argument
I am building a program which helps in memory debugging of C programs. I call
execlp("gnome-terminal","gnome-terminal","-e",command,(char*)0);
to open a new terminal window where the program to be debugged runs. I do this to not have my debugging info intermixed with the users program output. Because I need to set up an environmental variable before running the users program, command var is actually the name of the shell script where I pass the users program as the first arg.
Here is my script:
#!/bin/bash
export LD_PRELOAD="./mylib.so"
$1
This works fine for programs with no arguments but what happens if the开发者_运维技巧 user also supplies args with his program?
For example I wish to call my script like that :
myScript.sh usersProgram arg1 arg2 etc
How can I correctly run the users program inside the script and pass all the arguments to it?
Thank you
Use "$@"
, which will handle all arguments properly.
Assuming that args to program always start from the 2nd arg, I'd suggest doing it like this:
#!/bin/bash
PROG=$1
shift
$PROG "$@"
Practically, just specifying "$@" instead of the three lines above will also work. But this way, you can easily do some manipulation based on $PROG before actually executing it.
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