. . . having defined user shell functions ufctn to just echo the parameter.
Did you ever hear about shell functions? You may call them subroutines as well... man bash:
Quote:
Shell Function Definitions
A shell function is an object that is called like a simple command and executes a compound command with a new set of positional
parameters. Shell functions are declared as follows:
name () compound-command [redirection]
function name [()] compound-command [redirection]
This defines a function named name. The reserved word function is optional.
I'm not sure what else you need? Want it spoon fed?
Put your processing into those functions.
Hi All,
I was checking some of the files and I got the following entries:-
===============
v, 664, serv, serv, version.txt, exe
L, 775, serv, serv, start.sh, eventserv
================
Could someone please tell me what does the type"v" and "L" represent to.
I have not... (2 Replies)
Hi all,
I googled for this kind of function but didn't find anything. I have an FTP connection with a server, went to the dir. In this dir there are several TXT files. I would like to have function that downloads all this files, based on their .txt extension.
In bash, for example, simply:... (10 Replies)
hi
This should be easy but i'm obviously missing something obvious. :)
I'm looking to delete files from yesterday and older of extension .txt and there a range of subfolders with these files in them. The command runs but doesn't delete anything. SUSE 10.
find /testfolder -maxdepth 2 -type f... (6 Replies)
Can anyone see why the following command returns all files and not just the directories as specified?
find . -type d -exec ls -F {} \;
Also tried
find . -type d -name "*" -exec ls -F {} \;
find . -type d -name "*" -exec ls -F '{}' \; -print
Always returns all files :-\
OS is... (2 Replies)
hi,
I would like to delete files in a folder starting with letters ab and fe and so on. It should only delete if there are more than 3 files of that type in that folder. Please suggest me how to write a script. i am new to this scripting. (4 Replies)
I am not sure how to search and replace the word in the few specific files.
I need to search and replace word in only the name containing pepsi in the filename. (12 Replies)
I am trying to create a code that will use all the bam files stored on a separate drive (/media/cmccabe/C2F8EFBFF8EFAFB9/pool_I_090215), run them in a program that I have changed the directory to, and the output gets re-directed to (/home/cmccabe/Desktop/NGS/pool_I_090215). I have tried the... (11 Replies)
find /tmp/testlog/kSR*"_"2018* -type f -printf '%T@ %p\n' | sort -n | tail -3 | cut -f2- -d" "
/tmp/testlog/log/KSR04_2018-07-05.log
/tmp/testlog/log/KSR04_2018-07-06.log
/tmp/testlog/log/KSR01_2018-07-06.log
But, I would see the following output(latest files for each KSR tuype)
... (3 Replies)
Discussion started by: jhonnyrip
3 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.8.4 2005-05-03 SHELL-QUOTE(1p)