What is wrong with this?
I am able to check for any files using wild cards as you asked for using the -f (exists and is a file) and -e (exists).
Why do you think this does not work?
Also to add to the example masta gives:
I am using 100% pure shell globs and built-ins and no external calls this way.
masta, you make good point however you do use an external invoke of "ls -l" and "strings" and you do it multiple times (1 for each file) whereas scottn only makes the call once.
The difference here is presumably meant to imply "only in your initial check for existence of the files" and that what you do "with" these files once found is another matter. We can't use built-ins for everything after all
I just meant to add that it may seem confusing to new script writers if the distinction is not made.
I do however tend to agree with what masta means to show you, scottn has a valid working solution however we should (in my opinion) try to use the built-in functions of the shell we are in if external applications (ls in scottn's case) is not needed.
Now again this is a personal preference and scottn's method does have an advantage in one case. If the built-ins we rely on are shell specific (example: parameter expansion, let, set, unset, export, pushd, popd) then we cannot port this script in it's raw form to another shell (ie from bash to ksh/csh/sh). In this case using the external "ls" and "echo" commands means that we can use this script in any shell that can find the ls command in it's path!
Last edited by ddreggors; 04-26-2010 at 03:18 AM..
We have data files that are ftp'd every morning to a SUN server. The file names are exactly the same except for that each has the date included in its name. I have to write script to do 2 things:
STEP 1) Verify that the file arrived in morning.
STEP 2) Compare the file size of the current... (3 Replies)
So I have a lot of Java applications on my servers all having their own folder from the applications subdirectory. Now, I need to do the following.
Search all the applications subdirectories for message.jar.
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Hi,
I have scenerio where i need to check 3 files whether they are of current day files and then count should not be equal to zero.
how to achieve the same please let me know.
Vishal (17 Replies)
Hi,
I have two files say xxx.txt and yyy.txt. xxx.txt is with list of patterns within double quotes. Eg.
"this is the line1"
"this is the line2"
The yyy.txt with lot of lines. eg:
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Hey all,
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#! bin/bash
echo "Enter desired file"
read "$file"
if ... (5 Replies)
Hi,
I am looking for a shell script with the following.
1. It should check whether a particular file exists in a location
#!/bin/sh
if ;
then
echo "xxx.txt File Exists"
else
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Hi
#Testing for file existence
if ; then
echo 'SCHOOL data is available for processing'
else
echo 'SCHOOL DATA IS NOT AVAILABLE FOR PROCESSING'
:
i wrote a script, where it begins by checking if file exists or not.
If it exists, it truncates the database... (2 Replies)
Hi experts,
I have two arrays one has the file paths to be searched in , and the other has the files to be serached.For eg
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abc303
xyz123
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Discussion started by: 100bees
2 Replies
LEARN ABOUT REDHAT
lookbib
LOOKBIB(1) General Commands Manual LOOKBIB(1)NAME
lookbib - search bibliographic databases
SYNOPSIS
lookbib [ -v ] [ -istring ] [ -tn ] filename...
It is possible to have whitespace between a command line option and its parameter.
DESCRIPTION
lookbib prints a prompt on the standard error (unless the standard input is not a terminal), reads from the standard input a line contain-
ing a set of keywords, searches the bibliographic databases filename... for references containing those keywords, prints any references
found on the standard output, and repeats this process until the end of input. For each database filename to be searched, if an index
filename.i created by indxbib(1) exists, then it will be searched instead; each index can cover multiple databases.
OPTIONS -v Print the version number.
-istring
When searching files for which no index exists, ignore the contents of fields whose names are in string.
-tn Only require the first n characters of keys to be given. Initially n is 6.
FILES
filename.i Index files.
SEE ALSO refer(1), lkbib(1), indxbib(1)Groff Version 1.18.1 27 June 2001 LOOKBIB(1)