Tcl One-Liner is a simple tool that allows to execute simple Tcl
one-liners on the console.

    $ ./tol 'puts Hello'
    Hello

The -p switches makes tol print the result of the following expression.

    $ ./tol -p 'expr {1+2}'
    3

State is maintained from the evaluation of an argument to the next one...

    $ ./tol 'set a 2' 'puts $a'
    2

... unless the -r switch is used. This effectively resets the interpreter.

    $ ./tol 'set a 2' -r 'puts $a'
    can't read "a": no such variable
        while executing
    "puts $a"

Errors in an arguments can be ignored with the -i switch.

    $ ./tol 'puts before' 'set a 2' -r -i 'puts $a' 'puts after'
    before
    after

The -s var val can be used to set $var to the value val inside the interpreter.

    $ ./tol -s home $HOME 'puts "we are living in $home"'
    we are living in /Users/pietrocerutti

The -c switch can be used to avoid prematurely evaluating incomplete commands.

    $ ./tol -c 'set vars [dict create' \
        -c editor -c $EDITOR \
        -c pager -c $PAGER ']' \
        'foreach {k v} $vars {puts "$k => $v"}'
    editor => vim
    pager => less

Tcl One-Liner is a simple tool that allows to execute simple Tcl
one-liners on the console.

    $ ./tol 'puts Hello'
    Hello

The -p switches makes tol print the result of the following expression.

    $ ./tol -p 'expr {1+2}'
    3

State is maintained from the evaluation of an argument to the next one...

    $ ./tol 'set a 2' 'puts $a'
    2

... unless the -r switch is used. This effectively resets the interpreter.

    $ ./tol 'set a 2' -r 'puts $a'
    can't read "a": no such variable
        while executing
    "puts $a"

Errors in an arguments can be ignored with the -i switch.

    $ ./tol 'puts before' 'set a 2' -r -i 'puts $a' 'puts after'
    before
    after

The -s var val can be used to set $var to the value val inside the interpreter.

    $ ./tol -s home $HOME 'puts "we are living in $home"'
    we are living in /Users/pietrocerutti

The -c switch can be used to avoid prematurely evaluating incomplete commands.

    $ ./tol -c 'set vars [dict create' \
        -c editor -c $EDITOR \
        -c pager -c $PAGER ']' \
        'foreach {k v} $vars {puts "$k => $v"}'
    editor => vim
    pager => less

The -a switch can be use to accumulate arguments into full commands.

    $ ./tol -a puts [clock format 1234567890]\; puts hello
    Fri Feb 13 23:31:30 UTC 2009
    hello

Add an example for the -a switch
Add an example for the -a switch
