Function getting called recursively


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Function getting called recursively
# 1  
Old 12-14-2016
Hammer & Screwdriver Function getting called recursively

I have the below script which creates a directory or simply terminates without throwing error (exit 1) incase the directory exists.

Code:
bash-4.1$ vi mdir.sh
#!/bin/bash -e
shopt -s expand_aliases
alias mkdir=mkdir_s
mkdir_s(){
if [[ -d $1 ]]; then
echo " directory EXISTS "
return
else
echo " Creating DIRECTORY"
mkdir "$1"
return
fi
}

mkdir /tmp/mohta

It works fine when /tmp/mohta exists but runs in a recursive loop if the directory does not exists.

I understand why it is happening but not sure how to fix this.
# 2  
Old 12-14-2016
Run mkdir with an absolute path.

Of course, if you just want a version of mkdir which doesn't return error when the folder already exists, standard POSIX-compliant mkdir can do that already: mkdir -p
This User Gave Thanks to Corona688 For This Post:
# 3  
Old 12-14-2016
Quote:
Originally Posted by Corona688
Run mkdir with an absolute path.

Of course, if you just want a version of mkdir which doesn't return error when the folder already exists, standard POSIX-compliant mkdir can do that already: mkdir -p
changing mkdir "$1" to /usr/bin/mkdir "$1" resolves the recursive problem !! Thank you ....
# 4  
Old 12-14-2016
Another working solution might be to change
Code:
mkdir "$1"

to
Code:
env mkdir "$1"

This User Gave Thanks to ronaldxs For This Post:
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk call in bash function called with arugments not working, something lost in translation?

Hello, I have this awk code in a bash script to perform a find and replace task. This finds one unique line in a file and substitutes the found line with a replacement. #! /bin/bash # value determined elsewhere total_outputs_p1=100 # file being modified... (5 Replies)
Discussion started by: LMHmedchem
5 Replies

2. UNIX for Beginners Questions & Answers

Function needs to be called based on its first character in a supplied string

Hi All, I want to write a bash script in which a function needs to be called based on its first character in a supplied string. eg function "j" should be called when "jab" or "jgh" or "j" .... etc is hit. I have used complete -F in below script, however here function is invoked... (1 Reply)
Discussion started by: temp.sha
1 Replies

3. UNIX for Dummies Questions & Answers

shell program- how many times a function is called

We have a program source C and is required to indicate how many times each function is called from the C program. also print the line number where there is a call. I've tried something like this: #!/bin/sh for i in $*;do if ! then echo $i is not a C file. else echo $i... (0 Replies)
Discussion started by: oana06
0 Replies

4. UNIX for Advanced & Expert Users

Function not called when no arguments is passed

Hi Guys, I am trying to pass arguments to the script i am wrinting. When no argument is passed or wrong argument is passed, the script needs to output the way it needs to be called and exit. Currently, when no arguments is passed, it is not getting exited but goes on assuming those... (3 Replies)
Discussion started by: mac4rfree
3 Replies

5. Shell Programming and Scripting

Return a value from called function to the calling function

I have two scripts. script1.sh looks -------------------------------- #!/bin/bash display() { echo "Welcome to Unix" } display ----------------------------- Script2.sh #!/bin/bash sh script1.sh //simply calling script1.sh ------------------------------ (1 Reply)
Discussion started by: mvictorvijayan
1 Replies

6. Shell Programming and Scripting

Shell Script to display function names (called & defined) in a C++ Source Code

Hello to all, I am looking for a way to display only the names of function (calls & definition) of a C++ source code.There is already a post related to this, but the script is to find the functions using a specific variable, and the replies are not that convincing since they cannot be used for... (2 Replies)
Discussion started by: frozensmilz
2 Replies

7. Shell Programming and Scripting

exit from case - called in a function

Hello Experts, I am building a shell where I need to use case structure. The structure is in a function as in the sample code below: # Shell mySh #!/bin/sh doThis(){ var=$1 case "$var" in IT) echo "ok 1 $var" ;; ... (7 Replies)
Discussion started by: hkansal
7 Replies

8. UNIX for Dummies Questions & Answers

finding called functions recursively

I want to write a shell script which traverses a cpp file. Suppose there is function fncn_name6 .. which is called by fncn_name5 which in turn called by fncn_name4 and so on .. in a single cpp class. ie fncn_name1 { fncn_name2 { fncn_name3 } { fncn_name4 } } so fncn_name1 is... (2 Replies)
Discussion started by: ultimatix
2 Replies

9. Shell Programming and Scripting

Passing global variable to a function which is called by another function

Hi , I have three funcions f1, f2 and f3 . f1 calls f2 and f2 calls f3 . I have a global variable "period" which i want to pass to f3 . Can i pass the variable directly in the definition of f3 ? Pls help . sars (4 Replies)
Discussion started by: sars
4 Replies

10. Programming

How to get exit value of an executable that gets called from function?

How to get exit value of an executable that gets called from function? I have an executable called “myexec” which returns 0 on success and different values for different fail scenarios. I need to call this (myexec) executable from “myprog()” function of other executable and get the exit value... (1 Reply)
Discussion started by: sureshreddi_ps
1 Replies
Login or Register to Ask a Question