12-04-2003
Building a Linux like LS for Unix
I'm trying to customize my environment at work in a Unix system.
So I'm starting with the ls command...
I'd like to make it run as the Linux ls...
Even in color, if possible...
My first problem is to make the file listing brake in columns...
In fact, the actual ls from Unix does this, but I'm trying to make my own ls command...
For now I've coded the following:
______________________________________________
#!/bin/ksh
COL_NUM=0
LINE_NUM=`ls | wc -w | tr -d" "`
ls -lF | tr -s " " | cut -d" " -f9 | sort -d |
while read -r FIELD
do
if [ `expr "$COL_NUM" % 5` - ne 0 ]; then
echo "$FIELD\t\c"
else
COL_NUM=0
echo "\n$FIELD\t\c"
fi
COL_NUM=`expr "$COL_NUM" + 1`
done
echo ""
______________________________________________
I wonder how the ls does this...
And, further, I'd like to display the files like the Linux does - each type of file has its own colour.
How do I print in colour in shell ?
Thanks in advance,
=== 435 Gavea ===
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NSAPI_VIRTUAL(3) 1 NSAPI_VIRTUAL(3)
nsapi_virtual - Perform an NSAPI sub-request
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