eyeBlinkBehaviour/copy_file.sh.in at master · ananthamurthy/eyeBlinkBehaviour · GitHub

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#!/bin/bash -
#===============================================================================
#
#          FILE: copy_file.sh
#
#         USAGE: ./copy_file.sh
#
#   DESCRIPTION: Copy one file from one place to another, wait for file to
#   appear.
#
#       OPTIONS: ---
#  REQUIREMENTS: ---
#          BUGS: ---
#         NOTES: ---
#        AUTHOR: Dilawar Singh (), [email protected]
#  ORGANIZATION: NCBS Bangalore
#       CREATED: Friday 09 December 2016 05:31:39  IST
#      REVISION:  ---
#===============================================================================

set -o nounset                              # Treat unset variables as an error
from=$1
to=$2

# Wait for file to appear for a second.
n=0
while [ ! -f $from ]; do
    sleep 0.5
    printf '.'
    n=$((n+1))
    if [[ $n == 2 ]]; then
        echo "$from is not available. Timeout 1 sec. Cant copy"
        break
    fi
done

if [ -f $from ]; then
    cp $from $to &
fi