My UNIX SA requires that we start in CSH. I like to use KSH because most of my experience is in that shell. I added ksh to the end of my .login script which does take me into KSH but I would like to automatically execute my .profile to setup my aliases.
I cannot use a .shell file because I... (1 Reply)
Hi,
What is the difference between the following two usage of export?
export VARIABLE_NAME;VARIABLE_NAME=value
and
export VARIABLE_NAME=value
Cheers,
Vish (1 Reply)
Hello everybody!
Why I can export arrays in ksh?
I trie this for exemplo:
In parent script
array=a
array=b
array=c
export array
When I see the variable array in child script there are only first index.
For exemplo in child script
+echo ${array}
a (3 Replies)
Is it possible to create an alias wherein it will use a keystroke.
Like to clear the screen in bash i have to use CTRL + l.
I want to make an alias 'c' out of this.
Thanks. (6 Replies)
Hi Friends,
I am presently migrating shell scripts writter in KSH to SH.I am stuck at this place and i am not able to find a work around:-
Let the script name is x.sh
Below are some of the codes in it...
export abc=hello
export abc=hi
export abc=how
When i am trying to compile the script ... (6 Replies)
Hi all,
I want to create my own set of alias, possibly place them on a script that I can run manually as a script. I've placed the sequence of alias commands in a file then I logoff and login and run the script manually. That does not seem to work, can anyone please advise how to get this work... (2 Replies)
Hello,
I am trying to create alias in ksh.
alias m=main.ksh
It's working just fine but when I log out from my session and relogin the alias is gone.
How can i create a permanent alias?
Thanks... (1 Reply)
Hi All,
I have few bash shell scripts which depends on one Ksh shell script. When i run bash shell scripts, it shows error as bad interpretor : ksh no such bad file or directory.
When i tried to install ksh shell, it is not downloading too.
If I remove !/bin/ksh command in starting line of the... (14 Replies)
Hello all,
How can I invoke the bash shell (via command line) to execute another command by setting an exported environmental variable on the fly (as this env var would be used by the command -another script, the bash would execute).
This needs to be done in one single line as the same would... (4 Replies)
Discussion started by: Praveen_218
4 Replies
LEARN ABOUT REDHAT
which
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)