The ./ means execute a script or executable file in the current working directory. ./ls would only work if your current working directory were /usr/bin - ie.,
will generate an error unless there is an "ls" in the /somewhere directory
What you are seeing is the effect of the PATH variable as your sysadmin defined it - proabably in /etc/profile. It has nothing to with Korn shell per se. In other words, you PATH has a dot in it:
the .: thing means look in the current directory. It is a convenience, and a security risk as well. You could execute a file by mistake.
Hi,
I would like to know what is the difference between executing the mount command in the following ways...
eg:
/usr/sbin/mount -F <something>
AND
mount -F <something>
I mean , just executing the mount command as opposed to specifying the path and then executing it?
... (3 Replies)
HI all,
Please clarify the difference between the following
pm2srv:/var/opt/temip/vf/scripts/saiki#awk '{RS = ":"} ; {print $0}' testf2
hey:wasup:howru:
Yes
I
am
fine
pm2srv:/var/opt/temip/vf/scripts/saiki#awk 'BEGIN { RS = ":" } ; { print $0 }' testf2
hey
wasup
howru
Yes
I... (0 Replies)
Hello! I'm just learning the shell, and I would really like to know how to do this:
Given these 2 commands:
ls -l
ls -le
How can I, with a one-liner, ask the shell to show me visually in the shell, what the difference is between the output of the two commands? They look the same to me... (6 Replies)
Hi,
I need to know the difference between this commands:
grep * *search*
grep "*" *search*
As far as i know does the 2nd command search for files which have a name with *search* and greps then all which have chars from a-z in the file content.
But was does the first command??
Best... (1 Reply)
Looking at the performance hit on my server, does it matter wich command I run?
client # rsh server tar –cf - . | tar –cv –f –
or
server # tar –cf – . | rsh client ‘cd target && tar –xv -f –‘
I think it doesn't really matter because both command strings involve a tar being run on... (4 Replies)
Hi all,
I'm new in this forum.
I'm looking for the difference between the HACMP commands with the prefix "cl" and "cli".
The first type are under /usr/es/sbin/cluster/sbin directory and the second are under /usr/es/sbin/cluster/cspoc directory.
I know that the first are called HACMP for AIX... (0 Replies)
Hi all I want to make sure I was understanding this correctly
if a cron job command was
* */20 * * * command
does that mean this command will run every 20 hours?
also what is the difference between the following two?
0,20,40 * * * * command
20 * * * * command
I believe the first... (3 Replies)
i need to know the difference between two commands
ps -ef|grep oracle
ps -ef|grep -v grep |grep oracle (1 Reply)
Discussion started by: smazshah
1 Replies
LEARN ABOUT PLAN9
gzexe
GZEXE(1) General Commands Manual GZEXE(1)NAME
gzexe - compress executable files in place
SYNOPSIS
gzexe name ...
DESCRIPTION
The gzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a
penalty in performance). For example if you execute ``gzexe /usr/bin/gdb'' it will create the following two files:
-rwxr-xr-x 1 root root 1026675 Jun 7 13:53 /usr/bin/gdb
-rwxr-xr-x 1 root root 2304524 May 30 13:02 /usr/bin/gdb~
/usr/bin/gdb~ is the original file and /usr/bin/gdb is the self-uncompressing executable file. You can remove /usr/bin/gdb~ once you are
sure that /usr/bin/gdb works properly.
This utility is most useful on systems with very small disks.
OPTIONS -d Decompress the given executables instead of compressing them.
SEE ALSO gzip(1), znew(1), zmore(1), zcmp(1), zforce(1)CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the
PATH environment variable to find gzip and some standard utilities (basename, chmod, ln, mkdir, mktemp, rm, sleep, and tail).
BUGS
gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases,
using chmod or chown.
GZEXE(1)