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If statement is not working in KSH

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# 1  
Old 02-09-2011
Question If statement is not working in KSH
Code:
#! /bin/ksh
 
rm -f ./xyz file --- this line is working 
 
// Below any if stmt is not working.
if[-f /var/log/messages ]
then
echo " blah blah "
fi

or I replaced above if with
Code:
if[-d ${dirName}/ dirname ]
then
      echo "dir exists"
fi

This is also not working.

I am new to KSH. So can someone help why if stmt is not working in KSH.
It's giving me error as
Code:
if[-f /var/log/messages ]: not found
syntax error: `then' unexpected

Last edited by Scott; 02-09-2011 at 10:47 AM.. Reason: Please use code tags
# 2  
Old 02-09-2011
Use space around the square brackets: if [ -f ...
# 3  
Old 02-09-2011
It is also better practice to use:
Quote:
if [[...]]
instead of:
Quote:
if [...]
# 4  
Old 02-09-2011
Still it's not working after using space.
Its giving error as
Code:
if[ -f /var/log/messages ]: not found    #==> I did put one space at start and end of [ ]
syntax error: `then' unexpected

Last edited by Scott; 02-09-2011 at 10:56 AM.. Reason: Code tags
# 5  
Old 02-09-2011
You are still not using enough spaces
Code:
if [[ -f /var/log/messages ]]
then
  ....
fi

# 6  
Old 02-09-2011
Yes I tried to use the space
Code:
if[[ -f /var/log/messages ]]
then
        echo "This dir not exists."
fi

Error : 
if[[ -f /var/log/messages ]]: not found
syntax error: `then' unexpected

---------- Post updated at 09:57 AM ---------- Previous update was at 09:54 AM ----------

After using the 2 spaces still the same error. I dont know why its giving error for IF
Code:
if[[  -f /var/log/messages  ]]: not found
./rdaMakeWL92.sh[8]: syntax error: `then' unexpected

Last edited by Scott; 02-09-2011 at 10:59 AM.. Reason: Code tags, please...
# 7  
Old 02-09-2011
You need a space either side of [ - between the if and the first [.

Code:
ifSPACE[[SPACE ... SPACE]]
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