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Script that does not change itself

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# 1  
Old 10-05-2013
Script that does not change itself
I have a script that makes inline replacements to other scripts in a given directory: it loops through all files with extension "sh". What is a standard way of preventing that the script does not change itself ($0)?
# 2  
Old 10-05-2013
What utility is used to process your script (such as awk, sed, bash, or ksh)?

Show us the loop in your script that processes your *.sh files.
# 3  
Old 10-05-2013
The file edited for brevity looks as follows:

Code:
for file in *.sh
do
   # identify file extension
   extension=${file##*.}
   
   # one space after the '#'
   sed -i '' -e 's/#/# /' $file
   sed -i '' -e 's/#  /# /' $file
done

# 4  
Old 10-05-2013
should you be using bash (which Don Cragu asked for), extended pattern matching might work:
Code:
shopt -s extglob
for i in !(${0#*/}); do echo $i; done

EDIT: or some grep -v $0 in the for loop.
# 5  
Old 10-05-2013
You could just exclude the running script file:
Code:
for n in *.sh; do
	if [[ "$n" != `basename $0` ]]; then
		echo $n
	fi
done

# 6  
Old 10-05-2013
I like this solution because it requires a mere addition to the for loop without additional indentation:
Quote:
Originally Posted by RudiC
or some grep -v $0 in the for loop.
# 7  
Old 10-05-2013
As an alternative to the cool script solutions, could you simply name the script file different - not ending with .sh - or move it to a different directory?
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