That's a useless use of ls *. Whenever you have `ls *` you could just write * and get the same result.
When you have thousands of files, though? You could easily hit the argument size limit trying to use shell globbing, better to use find and read filenames line by line.
What does File_New=echo do? Set the variable "File_new" to the string "echo". Then tries to run the command "$file", which probably becomes "". I don't think that's what you intended.
Also, why run awk 4000 times instead of once?
Also, are you intending to rename files to the current time, or their own time?
File_new has no $ here. So you're trying to move the literal file file_new into whatever $file is.
What's your system? What's your shell? What you can write depends on that.
hey all,
I have files in the format of
ABCD20061101
and
ABCDEF20061101
in one directory, I would like to change all ABCD20061101 to ABCDEF20061101 and the problem is if I do a simple pattern match of ABCD, then those ABCDEF20061101 would also... (2 Replies)
Hi, I've already search for this issue but I found different scripts for rename files, but I don't know how to customize it for my needs.
Here's what I want to do:
I have a lot of files inside many directories, like this:
/aa/01.txt
/aa/02.txt
/ab/01.txt
/ab/02.txt
I want all those files... (2 Replies)
Hello, I've a list of file like this
img_001
img_22
img_44
and I would rename all with this form
photo_0001
photo_0002
photo_0003
photo_0004
suggestions?Thanks to all. (2 Replies)
Hi all
I have files in the following format:
01_anote1.pdf
01_bnote1.pdf
01_control1.pdf
01_ethics1.pdf
01_invoice1.pdf
01_invoice_21.pdf
20_quote_l1.pdf
I need to rename them to
01_anote.pdf
01_bnote.pdf
01_control.pdf
01_ethics.pdf
01_invoice.pdf (9 Replies)
Hi,
I'm not very experienced in shell scripting and that's probably why I came across the following problem:
I do have several hundred pairs of text files (PF00x.spl and PF00x.shd) where the first file (PF00x.spl) needs to be renamed according a string that is included in the second file... (12 Replies)
Hi Guys,
I have to rename about 180 files in different folders in linux. For example,
abc_110117.txt
eff_110117.txt
zzz_110117.txt
After renaming the files, these files should like like
abc.txt
eff.txt
zzz.txt
I created a small script to rename the files like
ls... (2 Replies)
I have various .sh and .pl files in one directory. I want to rename all the .sh files to .pl
i.e testscript.sh --> testscript.pl
I am trying to use mv *.sh *.pl
It doesnt work though!! (3 Replies)
Hi all,
I have a many folders with zipped files in them. The zipped files are txt files from different folders. The txt files have the same names. If i try to
find . -type f -name "*.zip" -exec cp -R {} /myhome/ZIP \; it fails since the ZIP files from different folders have the same names and... (2 Replies)
Hey guys,
I have wrote the following script to apply a module named "trinity" on my files. (it takes two input files and spit a trinity.fasta as output)
#!/bin/bash -l
#SBATCH -p node
#SBATCH -A <projectID>
#SBATCH -n 16
#SBATCH -t 7-00:00:00
#SBATCH --mem=128GB
#SBATCH --mail-type=ALL... (1 Reply)
Discussion started by: @man
1 Replies
LEARN ABOUT REDHAT
escape
escape(1) Mail Avenger 0.8.3 escape(1)NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)