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Full Discussion: Problems with "exit" called from function in bourne script
Top Forums UNIX for Dummies Questions & Answers Problems with "exit" called from function in bourne script Post 302633635 by neutronscott on Wednesday 2nd of May 2012 09:24:29 AM
Old 05-02-2012
ahhhhh haha. i should have forseen this. this is normal here. the problem is you are in a subshell!
everything done by | while read is not executed in same context. this shows more clearly with variables:

Code:
[mute@geek ~]$ cat subshell
#!/bin/busybox sh

i=0
printf '%s\n' foo bar baz | while read var; do
        let i++
        echo "subshell i = $i"
done

echo "main shell i = $i"
[mute@geek ~]$ ./subshell
subshell i = 1
subshell i = 2
subshell i = 3
main shell i = 0

this is same for exit!

Code:
[mute@geek ~]$ cat subshell
#!/bin/busybox sh

i=0
printf '%s\n' foo bar baz | while read var; do
        exit # from subshell ...
        echo "subshell is alive"
done

echo "main shell is alive"
[mute@geek ~]$ ./subshell
main shell is alive

You do not need to use ls and then read it. The shell can iterate over files:

Code:
check() {
    local file=$1

    # do something with file
}

for file in *.tar; do
    [ -e "$file" ] || continue # if no *.tar file, $file will be '*.tar' so check if file is really existing
    check "$file"
done

This User Gave Thanks to neutronscott For This Post:
vacadepollo
 

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LEARN ABOUT XFREE86

edit-patch

EDIT-PATCH(1)						      General Commands Manual						     EDIT-PATCH(1)

NAME

       edit-patch, add-patch - tool for preparing patches for Debian source packages

SYNOPSIS

       edit-patch path/to/patch

       add-patch path/to/patch

DESCRIPTION

       edit-patch is a wrapper script around the Quilt, CDBS, and dpatch patch systems. It simplifies the process of preparing and editing patches
       to Debian source packages and allows the user to not have to be concerned with which patch system is in use.   Run  from  inside  the  root
       directory of the source package, edit-patch can be used to edit existing patches located in debian/patches.

       It can also be used to incorporate new patches.	If pointed at a patch not already present, it will copy the patch to debian/patches in the
       correct format for the patch system in use.  Next, the patch is applied and a subshell is opened in order to edit the patch.   Typing  exit
       or pressing Ctrl-d will close the subshell and launch an editor to record the debian/changelog entry.

       edit-patch  is  integrated  with  the  Bazaar  and Git version control systems.	The patch will be automatically added to the tree, and the
       debian/changelog entry will be used as the commit message.

       If no patch system is present, the patch is applied inline, and a copy is stored in debian/patches-applied.

       add-patch is the non-interactive version of edit-patch.	The patch will be incorporated but no editor or subshell will be spawned.

AUTHORS

       edit-patch was written by Daniel Holbach <daniel.holbach@canonical.com>,  Michael  Vogt	<michael.vogt@canonical.com>,  and  David  Futcher
       <bobbo@ubuntu.com>.

       This manual page was written by Andrew Starr-Bochicchio <a.starr.b@gmail.com>.

       Both are released under the terms of the GNU General Public License, version 3.

DEBIAN
								 Debian Utilities						     EDIT-PATCH(1)
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