#!/bin/bash # tempfile-name.sh: temp filename generator BASE_STR=`mcookie` # 32-character magic cookie. POS=11 # Arbitrary position in magic cookie string. LEN=5 # Get $LEN consecutive characters. prefix=temp # This is, after all, a "temp" file. # For more "uniqueness," generate the #+ filename prefix using the same method #+ as the suffix, below. suffix=${BASE_STR:POS:LEN} # Extract a 5-character string, #+ starting at position 11. temp_filename=$prefix.$suffix # Construct the filename. echo "Temp filename = "$temp_filename"" # sh tempfile-name.sh # Temp filename = temp.e19ea # Compare this method of generating "unique" filenames #+ with the 'date' method in ex51.sh. exit 0
