Shell Programming and Scripting

file=$(ls -tr $EFT*.dat | tail -1) # Select the latest file

file=$(ls -tr $EFT*.dat | tail -1) # Select the latest file
filesuffix=${file%.dat} # Remove the extension
let numlength=${#filesuffix}-${#EFT} # Detemine the length of the numeric
typeset -R$numlength filenum=$filesuffix # Remove the number from the right
get "$file $numlength $filenum"

filesuffix=${EFT%.dat} # Remove the extension

+ 0<<
quote user banftp_finaid
quote pass gvf1!3Mk
cd orgs
cd "Financial Aid"
cd MIIS
cd 0910
cd FTP
get 03121000.DSB
# The start of a filename
file=+ tail -1
+ tail -1
+ ls -tr 3526_337092.dat EFT1234.dat HISTOGRAM200910.dat Histogram_200910.dat eluppdtop.dat idoc.dat lockbox_payments.dat
+ ls -tr 3526_337092.dat EFT1234.dat HISTOGRAM200910.dat Histogram_200910.dat eluppdtop.dat idoc.dat lockbox_payments.dat
EFT1234.dat # Select the latest file
filesuffix= # Remove the extension
let numlength=0-0 # Detemine the length of the numeric
typeset -R filenum= # Remove the number from the right
get " "

echo EFT1235.dat | tr -cd '[:digit:]'
1235

$ echo "EFT1234.dat" |awk '{a=substr($0,4,4)+1; print "EFT" a ".dat"}'
EFT1235.dat

echo "EFT1234.dat" |perl -lne '/([A-Z]+)([0-9]+).*/; print $1.($2+1).".dat";'

echo "EFT1234.dat" | perl -lpe 's/\d+/$& + 1/e;'