Depending on what shell you're using, you should have something like $PATH in your environment that provides pathnames to directories containing the commands you normally run. On UNIX and Linux systems, PATH is a colon separated list of directories; on Windows systems it is frequently a semicolon separated list of directories. Some shells on Windows internally convert slashes in pathnames to backslashes; some don't.
Try the command:
in your shell. If it is there, try the command:
matching the use of slashes or backslashes in existing entries in $PATH. You should then be able to just run ffmpeg or ffmpeg.exe to run the command in any subshell of your current shell.
Look at the man page for your shell. There should be an initialization file (such as $HOME/profile.sh) that will be run when you login. You can set $PATH there to add that directory to your $PATH for all later shells after you log out and log back in to your system.
Last edited by Don Cragun; 09-05-2013 at 10:10 PM..
Reason: Drop the base name from the additions to $PATH
Dear all,
One of our jobs retrieves data from tables and writes it to files. This job was running for around 15 minutes for the past 8 months. Now, this job is runnig for 45-50 minutes. I checked with the DBA's and found no issues with database. The time taken by to job to write to the file is... (5 Replies)
I need help with this:
Can any one tell me what does these below mean:
1. "\(.\).*") != '/'
2. sed 's+^\./++;s+/.*++'
3. sed "s+${f}/+ +
Thanks in advance (7 Replies)
Hi ,
I want gzip a folder te55 which has got 3 files test1.test2,test3
the name of the gzipped folder should be te55.gz with the 3 files as test1,test2,test3 itself...
Is it possible...
thanks in advance
sam (5 Replies)
Hi All,
If I had a string that was a combination of plain text and quoted text - For ex
String: This "sentence is" a combination of "multiple words"
I wanted to know how I can write a reg-ex that splits the above string into the following
result = This
result = sentence is
result = a... (7 Replies)
Hi all,
I am trying to send a mail by using MAILX option to my YAHOO-Id.
It is giving the following error. Can any one help me to find what is the problem? Do i need to get any kind of settings in my UNIX box for using MAILX?
The bounce mail is as below:
Message 1:
From MAILER-DAEMON Tue... (2 Replies)
Hi Guys,
I have a doubt either to Reboot the server after Replacing the disk0.
I have two disks under vxvm root mirrored and i had a problem with primary disk so i replace the disk0 failed primary disk and then mirrored. After mirroring is it reboot required ? (7 Replies)
Hi masters,
I have one doubt,
lets's say file1 has the following contents,
1
2.0
3.1
5.5
7
5.10
5.9
How to sort these contents to get the o/p like
1
2.0
3.1
5.5
5.9
5.10
7 (8 Replies)
I have a query in regards to SFTP....We have a SFTP ID/PWD, so say if the password changes
Would it fail my SFTP?
SFTP uses public/private keys for authentication right? So would it endanger my existing process???? (1 Reply)
Discussion started by: saggiboy10
1 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)