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Escape special characters in shell scripting

Escape special characters in shell scripting

(OP)
Hi,

How to escape special characters in a shell script? Following is working for all the special characters below except for $ and (). Please let me know the solution.

echo "@abc!=${bca}:/{^t&e-st*#}"|sed 's/[$!@{#%}^&*()/-]/\\&/g'
\@abc\!=:\/\{\^t\&e\-st\*\#\}


Thanks

RE: Escape special characters in shell scripting

I'm not sure what you're trying to do.

The ${bca} is being replaced by the shell because it's in double quotes, so you're telling the shell it's ok to replace that. If it was in single quotes, the shell would leave it alone.

CODE

echo '@abc!=${bca}:/{^t&e-st*#}' | sed 's/[$!@{#%}^&*()/-]/\\&/g'
\@abc\!=\$\{bca\}:\/\{\^t\&e\-st\*\#\} 

Not sure where the () issue comes in.


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