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Shell nested ifs

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# 1  
Old 10-01-2008
Question Shell nested ifs
Hi can someone tell me whats wrong with the following:

Code:
#!/bin/sh
file1=$1
file2=$2
if [ $# = 2 && -e $file1]
then
    if [ -e $file1 ]
    then
        echo "File 1 is" $file1
        echo "File 2 is" $file2
        cp $file1 $file2
        echo "Copy complete!"
    else
        echo "ERROR: File does not exist!"
    fi
else
    echo "ERROR: Not enough command line arguments!"
fi

I get the following output:
Code:
philip@philip-laptop:~/Desktop$ sh copy.sh test.java test2.java
[: 17: missing ]
ERROR: Not enough command line arguments!

# 2  
Old 10-01-2008
your code
Code:
if [ $# = 2 && -e $file1]

try this
Code:
if [ $# -eq "2" && -e $file1 ]

space was missing after file name
# 3  
Old 10-01-2008
I want to use this command:
ls -l some_file

in my shell script

But I want to then determine if the file has execute permission for the file owner.

How could i do that?
Is there a way to then after it did the command above, to select a certain value from it eg:
-rwSr-Sr-- 1 philip philip 126 2008-10-01 17:15 test.java

Could i select the 4th character?
Last edited by philmetz; 10-01-2008 at 08:42 AM..
# 4  
Old 10-01-2008
if [ `ls -l som_file | cut -c4` = 'x' ]
then
echo "Owner has executable permission"
else
echo "Owner doesn't hace executable permission"
fi
justsam
# 5  
Old 10-01-2008
So for what you said the cut -c4 means select character 4 from the line abobe?
# 6  
Old 10-01-2008
Hi Philmetz,

Yes. cut -c4 will get you the 4th character.Smilie
justsam
# 7  
Old 10-01-2008
But the proper way to test that is with test -x some_file

Actually in your original code you want

Code:
if [ $# = 2 -a -e $file1 ]

Last edited by era; 10-01-2008 at 09:11 AM.. Reason: Note -a pro &&
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