Shorter:
perl -nle '/^\d/ .. /(LA.*)/ && print $1' datafile

Safer:
perl -nle '/^\d/ .. /^\d*\s+(LA.*)/ && print $1' datafile

In reply to Re^4: How to get a value from a file and save in another file by ikegami
in thread How to get a value from a file and save in another file by Anonymous Monk

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