CODEWITHSUNDEEP
pathshelldirectorytcsh
Julian Mann
Julian Mann

Reputation: 6476

How can I find the location of the tcsh shell script I'm executing?

Say I put an executable tcsh file in /path/to/my_script.csh

and my current directory is anywhere, for example I'm in /path

So I type to/my_script.csh

I want to have a line in my_script.csh that will return "/path/to/my_script.csh" - like ruby's 

__FILE__

Upvotes: 11

Views: 27901

Answers (5)

Edy
Edy

Reputation: 470

The following method works both when sourced from terminal and from another script:

(Assuming the filename to be sourced is "script.cshrc")

set sourced=`ls -l /proc/$$/fd | sed -e 's/^[^/]*//' | grep "/script.cshrc"`
set source_dir="`dirname $sourced`"
set script_dir=`realpath $source_dir`

The first statement lists open file descriptors of the current process (which includes the sourced script) and grep for its full path.

Upvotes: 1

Lewis R
Lewis R

Reputation: 468

If you want an absolute path then this should help you out:

#!/bin/tcsh -f 
set called=($_)

if ( "$called" != "" ) then  ### called by source 
   echo "branch 1"
   set script_fn=`readlink -f $called[2]`
else                         ### called by direct execution of the script
   echo "branch 2"
   set script_fn=`readlink -f $0`
endif

echo "A:$0"
echo "B:$called"
set script_dir=`dirname $script_fn`

echo "script file name=$script_fn"
echo "script dir=$script_dir"

Source: http://tipsarea.com/2013/04/11/how-to-get-the-script-path-name-in-cshtcsh/

Upvotes: 8

euccas
euccas

Reputation: 775

In c shell, try like this:

set rootdir = `dirname $0`
set abs_rootdir = `cd $rootdir && pwd`
echo $abs_rootdir

Upvotes: 11

DAS
DAS

Reputation: 85

If you want to ensure the same result (full path and script name) try something like this:

...
rootdir=`/bin/dirname $0`       # may be relative path
rootdir=`cd $rootdir && pwd`    # ensure absolute path
zero=$rootdir/`/bin/basename $0`
echo $zero
...

Then you can call it as foo.sh, ./foo.sh, some/lower/dir/foo.sh and still get the same result no matter how it is called.

Upvotes: 6

ndim
ndim

Reputation: 37777

#!/bin/tcsh
echo "I am $0."

Upvotes: 1

Related Questions