Bash, Emacs

kubicon · 09-14-2003, 03:20 PM

question 1
with emacs, if you open a file that has a .sh extension it defaults to bash scripting mode, which is nice. Now, Is there a way to show the line numbers along the sides.

question 2
I'm learning bash scripting. When I try string comparison, bash gives me an error. Eg:

Code:

name="foo"
name2="bar"

if[ "$name" = "foo" ]
then
echo "yes"
fi

# or


if[$name = "foo"]
then
echo "yes"
fi

# or

if ["$name" = "$name2"]
then
echo "yes"
fi

All of the above give me errors. What's going on

druuna · 09-14-2003, 03:36 PM

Spaces are important!!! Among other syntax related issues.

Code:

name="foo"
name2="bar"
#if[ "$name" = "foo" ]
if [ "$name" = "foo" ]
then
echo "yes"
fi
# or
#if[$name = "foo"]
if [ $name = "foo" ]
then
echo "yes"
fi
# or
#if ["$name" = "$name2"]
if [ "$name" = "$name2" ]
then
echo "yes"
fi

XT8088 · 09-14-2003, 03:49 PM

If I run the following in BASH:

#!/bin/bash
#
#
name="foo"
name2="bar"
#
if [ $name = foo ]
then
echo "yes"
fi

# or

if [ $name = "foo" ]
then
echo "yes"
fi

# or

if [ $name = $name2 ]
then
echo "yes"
fi

file is "test"
Output as follows:

[root@localhost cmd_wm]# bash test
yes
yes
[root@localhost cmd_wm]#

druuna · 09-14-2003, 04:27 PM

And that is correct.

1) $name = foo => foo = foo => true => echo yes
2) $name = "foo" => foo = foo => true => echo yes
3) $name = $name2 => foo = bar => false => continue

About you emacs question:

C-e C-l

Which I found with google.......... (I don't use emacs).

kubicon · 09-14-2003, 09:11 PM

thanks for the answer with the 2nd question.
In the first question, I mean displaying line numbers along the sides of each line automatically, eg:
1) something
2) something else
3) third line here

I don't know if such thing is possible, it just seem to me like it would be. I tried searching in google and found nothing. Oh well, it someone knows about this then let me know, otherwise is no big deal.

BTW: C-e C-l does nothing
thanks anyways, though

maroonbaboon · 09-14-2003, 09:26 PM

The file setnu.el available at

http://www.wonderworks.com/

apparently does the line-number thing. Personally I'm happy with

M-x line-number-mode

which toggles display of the current line number in the status bar.