Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Calling function from another bash script

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Calling function from another bash script
# 8  
Old 04-04-2012
Something like this:

Code:
$ cat test.sh
#! /bin/bash
echo $(dirname $(readlink -f $0))
$
$ ./test.sh
/home/user
$

# 9  
Old 04-04-2012
Using the following works
Code:
bashPath=${0%/*}

But the one suggested below seems more robust to me
Code:
$(dirname $(readlink -f $0))

# 10  
Old 04-04-2012
You can combine the merits of both into something slightly more efficient than using dirname in backticks:

Code:
V=$(readlink -f "$0")
V="${V%/*}"

# 11  
Old 04-04-2012
Quote:
Originally Posted by Corona688
You can combine the merits of both into something slightly more efficient than using dirname in backticks:

Code:
V=$(readlink -f "$0")
V="${V%/*}"

Can you explain to be the merits of one versus the other, and how the one you constructed combines the merits of both, if you please?
# 12  
Old 04-05-2012
It is faster to use shell builtins than external utilities when you can, especially when processing tiny amounts of information. External utilities can run quite quickly once loaded but take time and resources to start and finish.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Calling Oracle function from script

Hi I need to call a function in database and update the return value of that function with a value in csv file. test.csv 1,2,3,,5,,,8,9,10 1,2,3,4,5,,,8,9,10 1,2,3,,,,,8,9,10In the above file I want to replace column 2 with a value extracted from database like (select student_id from... (3 Replies)
Discussion started by: kev94
3 Replies

2. Shell Programming and Scripting

Bash not calling function after completing

In the below bash the function execute is started with the while true at the end of the script. Currently, this works and processing does begin. The function panel in bold does not get called after execute completes, therefore the user does not get the menu selection and the files just loop... (3 Replies)
Discussion started by: cmccabe
3 Replies

3. Shell Programming and Scripting

SHELL SCRIPT Function Calling Another Function Please Help...

This is my function which is creating three variables based on counter & writing these variable to database by calling another function writeRecord but only one record is getting wrote in DB.... Please advise ASAP...:confused: function InsertFtg { FTGSTR="" echo "Saurabh is GREAT $#" let... (2 Replies)
Discussion started by: omkar.sonawane
2 Replies

4. Shell Programming and Scripting

c function calling from a pearl script

Hi, Is it possible to call a c function defined in a .c file from a pearl script? How is this possible? Thannks in advance, JS (2 Replies)
Discussion started by: jisha
2 Replies

5. Shell Programming and Scripting

Calling a C-function froma shell script

Hi, I have searched the forum for the query, But i didnt find an exact answer. I have a script(1.sh) and a c program(sample.c) sample.c contains many function definitions.( run(), find(), add() etc). I want to call functions in sample.c from 1.sh and use the return value in 1.sh... (3 Replies)
Discussion started by: jisha
3 Replies

6. UNIX for Dummies Questions & Answers

calling one function from another shell script

i have a function defined in one ksh (ksh 1) i want to use that function in another ksh (ksh 2) i am using . $<directoryname>/<ksh name> i am calling the function defined in ksh 1 in ksh 2 i want the returnstatus from the above operation but it is not executing the function what i... (1 Reply)
Discussion started by: trichyselva
1 Replies

7. Shell Programming and Scripting

Help needed in function calling in a script

:confused:Hi , I have a script as shown below: rpttxt() { name="$*" awk '/'"${name}"'/ {print $2 $3"=" $4}' file.txt } xx = rpttxt "COL_HEAD_1" awk 'BEGIN {printf("%36s \n ","'"$xx"'")}' rpttxt() is a function..I want to store the final result of this function in... (3 Replies)
Discussion started by: jisha
3 Replies

8. Shell Programming and Scripting

urgent calling function from a script

Hi, Can we define a function say func1 in a script 1.sh and call this function from another script say 2.sh by passing an argument :confused: (2 Replies)
Discussion started by: jisha
2 Replies

9. Shell Programming and Scripting

$0 scope in function and calling script

Hi folks, I'm just running through an oreilly korn shell book but have witnessed an output difference on my own unix machine and the output provided in the book. Can anyone help? create a script called ascript as follows: function afunc { print in function $0: $1 $2 var1="in... (16 Replies)
Discussion started by: beckett
16 Replies

10. Programming

calling c++ function from script

hi, I just started to work on unix, I was wondering if it is possible to call a c++ function from a script. now, i don't mean starting a program, i mean dynamicaly calling a funtion (like working with a dll) thanks (3 Replies)
Discussion started by: Lebamb
3 Replies
Login or Register to Ask a Question