Check that two file exists in UNIX Directory

Question

Good Morning,

I am trying to write a korn shell script to look inside a directory that contains loads of files and check that each file also exists with .orig on the end.

For example if a file inside the directory is called 'mercury_1' there must also be a file called 'mercury_1.orig'

If there isn't, it needs to move the mercury_1 file to another location. However if the .orig file exists do nothing and move onto the next file.

I am sure it is really simple but I am not that experienced in writing Linux scripts and help would be greatly appreciated!!

Answer 1

Here's a small ksh snippet to check if a file exists in the current directory

fname=mercury_1
if [ -f $fname ]
then
  echo "file exists"
else
  echo "file doesn't exit"
fi

Edit:

The updated script that does the said functionality

#/usr/bin/ksh
if [ ! $# -eq 1 ]
then
    echo "provide dir"
    exit  
fi

dir=$1

cd $dir

#process file names not ending with orig
for fname in `ls | grep -v ".orig$"`
do
  echo processing file $fname
  if [ -d $fname ]  #skip directory
  then
    continue
  fi

  if [ -f "$fname.orig" ] #if equiv. orig file present 
  then
    echo "file exist"
    continue
  else
    echo "moving"       
    mv $fname /tmp
  fi

 done

Hope its of help!

Answer 2

You can use the below script

script.sh :

#!/bin/sh

if [ ! $# -eq 2 ]; then
    echo "error";
    exit;
fi

for File in $1/*
do
    Tfile=${File%%.*}
    if [ ! -f $Tfile.orig ]; then
        echo "$File"
        mv $File $2/
    fi
done

Usage:

./script.sh <search directory>  <destination dir if file not present>

Here, for each file with extension stripped check if "*.orig" is present, if not then move file to different directory, else do nothing.

Extension is stripped because you don't want to repeat the same steps for *.orig files.

Answer 3

I tested this on OSX (basically mv should not differ to much from linux). My test directory is zbar and destination is /tmp directory

 #!/bin/bash
 FILES=zbar
 cd $FILES
 array=$(ls -p |grep -v "/")  # we search for file without extension so put them in array and ignore directory
 echo $array
 for f in $array #loop in array and find .orig file 
 do
 #echo $f
 if [ -e "$f.orig" ]
   then
   echo "found $f.orig"
 else
     mv -f "$f" "/tmp"
   fi
 done