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- (w)w*( |$)
- s/(w)w*( |$)/1/g
- $ echo "I Need Print First Symbol For Each Word" | sed 's/(w)w*( |$)/1/g'
- INPFSFEW
- (w)w*( |$)
- $ echo "I Need Print First Symbol For Each Word" | sed 's/(w)w*( |$)/L1/g'
- inpfsfew
- sed 's/(w)w*( |$)/1/g;s//L&/g'
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