Command question

[hitmen]

1)what is the diff between echo and cat.
cat displays the output of a file on the screen. dont echo does about the same?

2)Can anyone explain this command to be?
sh -c " echo 'export XMODIFIERS=@im=SCIM ; export GTK_IM_MODULE="scim" ; export QT_IM_MODULE="scim" ; scim -d " > /etc/X11/Xsession.d/95xinput"


I need it to install chinese

tia

[Dave68]

Question 1)

Try this in terminal:

"apropos" knows all commands and what they do. You just have to ask.

apropos echo

apropos cat.

Hope That Helps,
Dave

[Kloschüssel]

Regarding 1], there are also the manual pages "man echo / man cat"

Regarding 2]
sh -c executes the command string followed; "man sh" tells me this:

-c string If  the  -c  option  is  present, then commands are read from
		 string.  If there are arguments after the  string,  they  are
		 assigned to the positional parameters, starting with $0.

So this is the code to be executed:

echo 'export XMODIFIERS=@im=SCIM ;
export GTK_IM_MODULE="scim" ;
export QT_IM_MODULE="scim" ;
scim -d " > /etc/X11/Xsession.d/95xinput

Disassembling this yields that you want to write this:

export XMODIFIERS=@im=SCIM ;
export GTK_IM_MODULE="scim" ;
export QT_IM_MODULE="scim" ;
scim -d

to the file /etc/X11/Xsession.d/95xinput

unfortunatly you have a syntax error (quotes are wrong), thus the script should not work at all.

I hope this explanation helps you solving such things by yourself in the future.