Batch file process in linux bash

Batch process *.ext files

Template

$ find /path/ -name *.ext -exec sh -c 'command "$1"' _ {} \;

Example

print file names without extension
$ find /path/ -name *.ext -exec sh -c 'echo "${1%.*}"' _ {} \;
print base name (dirname), directory (dirname)
$ find /path/ -name *.ext -exec sh -c 'echo $(basename "$1")' _ {} \;

Batch convert *.ext to *.ext_bak

Template

$ find /path/ -name *.ext -exec sh -c 'convert "$1" "${1%.*}".ext_bak' _ {} \;

Example

convert egg to bam file
$ find /path/ -name *.egg -exec sh -c 'egg2bam "$1" -o "${1%.*}".bam' _ {} \;