10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I have a variable returned from Oracle SQL Function which holds file names.
I would like to test if all the file names mentioned in the string exists in a directory. If all the files exists print "exists", even if one file does not exists print "Does not exists".
e.g.
... (3 Replies)
Discussion started by: pointers1234
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2. Red Hat
I have a couple of questions regarding multipath.
If I do vgdisplay vg01, I see it is using 1 PV: /dev/dm-13
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3. Hardware
I patched a linux kernel 2.6.28 with lttng patch.
Now I have two folder of linux patched and unpatched.
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4. Shell Programming and Scripting
Hello,
is it possible to give grep two documents to surche for? like
grep "test" /home/one.txt AND /home/two.txt ?
thanks (1 Reply)
Discussion started by: Cybertron
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5. AIX
Guy's
I have script doing many steps as the below ...
#############
## step1# mount all Files system
mount all
## step2# Start the application
/app/appsh
#############
but some time mount points will not be mounted completely so that will give an error if the next step started... (1 Reply)
Discussion started by: Mr.AIX
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6. Shell Programming and Scripting
I run the script with one parameter : myscript abc002
But I need my script to check the parameter in txt array first:
txt="abc001 abc002 abc004"
What's the best way to do it? I am using ksh.
#! /usr/bin/ksh
txt="abc001 abc002 abc004"
if ; then
echo " Your input is wrong,... (9 Replies)
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7. Shell Programming and Scripting
Hi gusys.
I am developing a script that mount a filesystem ; I would like
verify that this instruction has finished OK !!!
I am tryin to use $? ; but I have doubt How use the if instruction with
the $? variable :
mount machine:/dir /dir
if
then
action 1
else
... (2 Replies)
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8. AIX
It may seam a bit odd that I ask this question.
After you have done your backups to tapes, do you verify the content of the tapes ?
- never
- sometimes
- always
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Discussion started by: Browser_ice
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9. High Performance Computing
Hi All,
If I need to verify my solaris 8 with patch 110910-03 and I query the server below:
#showrev -p | grep 'Patch: 110910-'
Patch: 110910-01 Obsoletes: Requires: Incompatibles: Packages: SUNWcsu
Do I still need to apply the patch if the older 110910-01 patch exist?
Please... (5 Replies)
Discussion started by: itik
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10. Shell Programming and Scripting
I have a unix script written in the korn shell. At the top of the script I call a script that exports the values of the variables I use in my script. I know that when you execute the script using ksh -x it shows you the script running. I was wondering if there was a way you could run the script... (2 Replies)
Discussion started by: lesstjm
2 Replies
WHICH(1) General Commands Manual WHICH(1)
NAME
which - shows the full path of (shell) commands.
SYNOPSIS
which [options] [--] programname [...]
DESCRIPTION
Which takes one or more arguments. For each of its arguments it prints to stdout the full path of the executables that would have been exe-
cuted when this argument had been entered at the shell prompt. It does this by searching for an executable or script in the directories
listed in the environment variable PATH using the same algorithm as bash(1).
This man page is generated from the file which.texinfo.
OPTIONS
--all, -a
Print all matching executables in PATH, not just the first.
--read-alias, -i
Read aliases from stdin, reporting matching ones on stdout. This is useful in combination with using an alias for which itself. For
example
alias which='alias | which -i'.
--skip-alias
Ignore option `--read-alias', if any. This is useful to explicity search for normal binaries, while using the `--read-alias' option in
an alias or function for which.
--read-functions
Read shell function definitions from stdin, reporting matching ones on stdout. This is useful in combination with using a shell func-
tion for which itself. For example:
which() { declare -f | which --read-functions $@ }
export -f which
--skip-functions
Ignore option `--read-functions', if any. This is useful to explicity search for normal binaries, while using the `--read-functions'
option in an alias or function for which.
--skip-dot
Skip directories in PATH that start with a dot.
--skip-tilde
Skip directories in PATH that start with a tilde and executables which reside in the HOME directory.
--show-dot
If a directory in PATH starts with a dot and a matching executable was found for that path, then print "./programname" rather than the
full path.
--show-tilde
Output a tilde when a directory matches the HOME directory. This option is ignored when which is invoked as root.
--tty-only
Stop processing options on the right if not on tty.
--version,-v,-V
Print version information on standard output then exit successfully.
--help
Print usage information on standard output then exit successfully.
RETURN VALUE
Which returns the number of failed arguments, or -1 when no `programname' was given.
EXAMPLE
The recommended way to use this utility is by adding an alias (C shell) or shell function (Bourne shell) for which like the following:
[ba]sh:
which ()
{
(alias; declare -f) | /usr/bin/which --tty-only --read-alias --read-functions --show-tilde --show-dot $@
}
export -f which
[t]csh:
alias which 'alias | /usr/bin/which --tty-only --read-alias --show-dot --show-tilde'
This will print the readable ~/ and ./ when starting which from your prompt, while still printing the full path when used from a script:
> which q2
~/bin/q2
> echo `which q2`
/home/carlo/bin/q2
BUGS
The HOME directory is determined by looking for the HOME environment variable, which aborts when this variable doesn't exist. Which will
consider two equivalent directories to be different when one of them contains a path with a symbolic link.
AUTHOR
Carlo Wood <carlo@gnu.org>
SEE ALSO
bash(1)
WHICH(1)