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Top Forums Shell Programming and Scripting How can I extract digits at the end of a string in UNIX shell scripting? Post 303026263 by mingch on Thursday 22nd of November 2018 10:20:32 PM
Old 11-22-2018
I tried to create the following scripts but it can't increment the last number from 012 to 013, anyone help? Many thanks.

Code:
#!/bin/sh
cat file.txt | while read FN
  do
    FNPATH=${FN%/*}
    FNFILE=${FN##*/}
    BNFILE=`echo "${FNFILE%.txt}" | sed "s/[0-9]\{1,10\}$//"`
    OLDNUM=`echo "${FNFILE%.txt}" | sed 's/.*[^0-9]\([0-9][0-9]*\)/\1/'`
    NEWNUM=$(($OLDNUM+1))
    NEWFILE="${BNFILE}${NEWNUM}.txt"
   echo "OLD file is ${FN}, NEW file is $FNPATH/${NEWFILE}"
  done

Output
Code:
OLD file is /tmp/path1/abc_d123_4567.txt, NEW file is /tmp/path1/abc_d123_4568.txt
OLD file is /tmp/path2/A246_B789.txt, NEW file is /tmp/path2/A246_B790.txt
OLD file is /tmp/path12/B123cc099.txt, NEW file is /tmp/path12/B123cc100.txt
OLD file is /tmp/path12/a123_B234-012.txt, NEW file is /tmp/path12/a123_B234-13.txt
OLD file is /tmp/path13/a13.txt, NEW file is /tmp/path13/a14.txt
OLD file is /tmp/path13/1.txt, NEW file is /tmp/path13/2.txt

 

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PARALLEL-SLURP(1)														 PARALLEL-SLURP(1)

NAME
parallel-slurp - copy files from listed hosts SYNOPSIS
parallel-slurp [OPTIONS] -h hosts.txt -L destdir remote local DESCRIPTION
pssh provides a number of commands for executing against a group of computers, using SSH. It's most useful for operating on clusters of homogenously-configured hosts. parallel-slurp gathers specified files from hosts you listed. OPTIONS
-r --recursive recusively copy directories (OPTIONAL) -L --localdir output directory for remote file copies -h --hosts hosts file (each line "host[:port] [user]") -l --user username (OPTIONAL) -p --par max number of parallel threads (OPTIONAL) -o --outdir output directory for stdout files (OPTIONAL) -e --errdir output directory for stderr files (OPTIONAL) -t --timeout timeout (secs) (-1 = no timeout) per host (OPTIONAL) -O --options SSH options (OPTIONAL) -v --verbose turn on warning and diagnostic messages (OPTIONAL) EXAMPLE
An example to copy /home/irb2/foo.txt from each host. Files gathered will be stored in /tmp/outdir/hostname/foo.txt. # prallel-slurp -h hosts.txt -L /tmp/outdir -l irb2 /home/irb2/foo.txt foo.txt ENVIRONMENT
All four programs take similar sets of options. All of these options can be set using the following environment variables: o PSSH_HOSTS o PSSH_USER o PSSH_PAR o PSSH_OUTDIR o PSSH_VERBOSE o PSSH_OPTIONS SEE ALSO
parallel-ssh(1), parallel-scp(1), parallel-nuke(1), parallel-rsync(1), ssh(1) AUTHOR
Brent N. Chun <bnc@theether.org> COPYING
Copyright: 2003, 2004, 2005, 2006, 2007 Brent N. Chun NOTES
1. bnc@theether.org mailto:bnc@theether.org 03/30/2009 PARALLEL-SLURP(1)
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