shell - unix script, running a command on multiple files -

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i have no previous experience writing unix script want seems simple task.. want run command pdf files in folder 

pdf2txt.py -o naacl06-shinyama.html samples/naacl06-shinyama.pdf

if there file called anypdf.pdf command like: 

pdf2txt.py -o anypdf.html samples/anypdf.pdf

so if folder includes 3 pdf files like, abc.pdf aaa.pdf bbb.pdf want end abc.html aaa.html , bbb.html

thanks in advance 

for pdf in samples/*.pdf;     html=$(basename "$pdf" .pdf).html     pdf2txt.py -o "$html" "$pdf" done

if don't have basename try alternative, uses bash's ## , % constructs replacements inline.

#!/bin/bash  pdf in samples/*.pdf;     html=${pdf##*/};     html=${html%.pdf}.html     pdf2txt.py -o "$html" "$pdf" done

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