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Full Discussion: How to generate multiple lines in a text file?
Top Forums UNIX for Dummies Questions & Answers How to generate multiple lines in a text file? Post 302481140 by m1xram on Thursday 16th of December 2010 07:51:39 PM
Old 12-16-2010
I thought you wanted the A and B fields to increment. If that's incorrect just change the first part of the echo command.

Code:
#!/bin/bash

outfile=test17.out
if [ -e $outfile ]; then
    rm $outfile
fi

aend=100
bend=10
for (( a=1 ; $a <= $aend;  a=$(($a + 1)) )); do
    for (( b=1 ; $b <= $bend;  b=$(($b + 1)) )); do
        afmt=$(printf "%04d" $a)
        bfmt=$(printf "%04d" $b)
        echo "a${afmt}/b${bfmt}/${afmt}-${bfmt}.txt" >> $outfile
    done
done

Output:
Code:
a0001/b0001/0001-0001.txt
a0001/b0002/0001-0002.txt
a0001/b0003/0001-0003.txt
a0001/b0004/0001-0004.txt
a0001/b0005/0001-0005.txt
a0001/b0006/0001-0006.txt
a0001/b0007/0001-0007.txt
a0001/b0008/0001-0008.txt
a0001/b0009/0001-0009.txt
a0001/b0010/0001-0010.txt
a0002/b0001/0002-0001.txt
a0002/b0002/0002-0002.txt
a0002/b0003/0002-0003.txt
a0002/b0004/0002-0004.txt
a0002/b0005/0002-0005.txt
a0002/b0006/0002-0006.txt
a0002/b0007/0002-0007.txt
a0002/b0008/0002-0008.txt
a0002/b0009/0002-0009.txt
a0002/b0010/0002-0010.txt
a0003/b0001/0003-0001.txt
....

Last edited by m1xram; 12-16-2010 at 08:56 PM.. Reason: correct code
 

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LEARN ABOUT DEBIAN

xclip-copyfile

XCLIP-COPYFILE(1)					      General Commands Manual						 XCLIP-COPYFILE(1)

NAME

       xclip-copyfile, xclip-cutfile, xclip-pastefile - copy and move files via the X clipboard

SYNOPSIS

       xclip-copyfile [-p] FILES...

       xclip-cutfile [-p] FILES...

       xclip-pastefile

DESCRIPTION

       xclip-copyfile copies files into the X clipboard, recursing into directories.

       xclip-cutfile copies the files, but also deletes them afterwards.

       -p     preserve path formation

       xclip-pastefile pastes the files out of the clipboard

EXAMPLES

       Copying a file to a remote host

       [maggie.lkpg.cendio.se ~]$ echo "A file created on ${HOSTNAME}" > file1
       [maggie.lkpg.cendio.se ~]$ xclip-copyfile file1
       [sofie.homeip.net ~/doc]$ xclip-pastefile
       file1
       [sofie.homeip.net ~/doc]$ cat file1
       A file created on maggie.lkpg.cendio.se

       Copying an entire tree structure

       [sofie.homeip.net ~]$ xclip-copyfile doc
       [maggie.lkpg.cendio.se ~/tmp]$ xclip-pastefile
       doc/
       doc/letter-mom-april.txt
       doc/file1
       doc/letter-dad-march.txt

       Copying files with preserved path information

       [maggie.lkpg.cendio.se ~]$ xclip-copyfile -p /etc/sysconfig/grub
       tar: Removing leading `/' from member names
       [sofie.homeip.net ~/tmp]$ xclip-pastefile
       etc/sysconfig/grub
       [sofie.homeip.net ~/tmp]$ ls etc/sysconfig/grub
       etc/sysconfig/grub

       Moving files

       [sofie.homeip.net ~]$ ls letter-brother-may.txt
       letter-brother-may.txt
       [sofie.homeip.net ~]$ xclip-cutfile letter-brother-may.txt
       [sofie.homeip.net ~]$ ls letter-brother-may.txt
       ls: cannot access letter-brother-may.txt: No such file or directory
       [sofie.homeip.net ~]$ cd doc
       [sofie.homeip.net ~/doc]$ xclip-pastefile
       letter-brother-may.txt

AUTHORS

       This  manual  page  was written by Maximilian Gass <mxey@cloudconnected.org> for the Debian project. It may be used for everything else, of
       course.

																 XCLIP-COPYFILE(1)
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