03-01-2008
help with a 'while read' loop to change the names of files
Hi,
I am new to scripting, so any help on this would be much appreciated.
I am trying to rename a bunch of files, taking the names sequentially from a list read in another file...
# ls oldnames
file_1
file_2
file_3
# cat names
red
yellow
green
I want the files to take on the names red yellow green as they are read line by line from the file "names"
ie
cp oldnames/file_1 newnames/red
cp oldnames/file_2 newnames/yellow
cp oldnames/file_3 newnames/green
etc....
What I have tried (but doesn't work) -
#! /bin/bash
ls . |while read line
do
echo $line
cat names | while read xx
do
cp $line ../newnames/$xx
done
done
This creates new files but only copies the last entry from the ls to each of them
As you can see my scripting skills are not great - any ideas would be much appreciated.
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LEARN ABOUT DEBIAN
printwait
MESSAGES(3) libbash messages Library Manual MESSAGES(3)
NAME
messages -- libbash library that implements a set of functions to print standard status messages
SYNOPSIS
printOK [indent]
printFAIL [indent]
printNA [indent]
printATTN [indent]
printWAIT [indent]
DESCRIPTION
General
messages is a collection of functions to print standard status messages - those [ OK ] and [FAIL] messages you see during Linux boot process.
The function list:
printOK Prints a standard [ OK ] message (green)
printFAIL Prints a standard [FAIL] message (red)
printNA Prints a standard [ N/A] message (yellow)
printATTN Prints a standard [ATTN] message (yellow)
printWAIT Prints a standard [WAIT] message (yellow)
Detailed interface description follows.
indent
Column to move to before printing.
Default indent is calculated as TTY_WIDTH-10. If current tty width can not be determined (for example, in case of serial console), it
defaults to 80, so default indent is 80-10=10
FUNCTIONS DESCRIPTIONS
printOK [indent]
Prints a standard [ OK ] message (green)
printFAIL [indent]
Prints a standard [FAIL] message (red)
printNA [indent]
Prints a standard [ N/A] message (yellow)
printATTN [indent]
Prints a standard [ATTN] message (yellow)
printWAIT [indent]
Prints a standard [WAIT] message (yellow)
EXAMPLES
Run a program named MyProg, and report it's success or failure:
echo -n 'Running MyProg...'
printWAIT
if MyProg ; then
printOK
else
printFAIL
fi
AUTHORS
Hai Zaar <haizaar@haizaar.com>
Gil Ran <gil@ran4.net>
SEE ALSO
ldbash(1), libbash(1)
Linux Epoch Linux