Problems with redirection of output to files through shell scripts
Configuration Information [Automatically generated, do not change]: Machine: i586 OS: linux Compiler: gcc -I/usr/src/packages/BUILD/bash-3.0 -L/usr/src/packages/BUILD/bash-3.0/../readline-5.0 Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i586' -DCONF_OSTYPE='linux' -DCONF_MACHTYPE='i586-suse-linux' -DCONF_VENDOR='suse' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL -DHAVE_CONFIG_H -I. -I. -I./include -I./lib -O2 -march=i586 -mtune=i686 -fmessage-length=0 -Wall -D_FORTIFY_SOURCE=2 -g -D_GNU_SOURCE -Wall -pipe -g -fbranch-probabilities uname output: Linux linux 2.6.13-15-smp #1 SMP Tue Sep 13 14:56:15 UTC 2005 i686 i686 i386 GNU/Linux Machine Type: i586-suse-linux Bash Version: 3.0 Patch Level: 16 Release Status: release Description: Problem 1: Following is the code (in a shell script)which redirects find command output to a file called "src". But this command generates a file called "src?" instead. SOURCE_PATH="src" rm -f $SOURCE_PATH #Getting all OPS src files find ../../com/onmobile/noc/common -name *.java > src Problem 2: - Later I need to read the src file. To circumvent Problem 1, if I use the below code : SOURCE="$SOURCE_PATH?" $JAVA_HOME/bin/javac -classpath $CLASSPATH -d $OUTPUT_PATH -sourcepath < cat $SOURCE I receive following error: cat: No such file or directory Could this problem be solved? I'm facing this problem even in CentOS 10.0 Bash Version: GNU bash, version 3.1.17(1)-release (i686-redhat-linux-gnu) Repeat-By: Fix: Thanks, Pratiksha
Re: Problems with redirection of output to files through shell scripts
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 According to Pratiksha Powar on 9/11/2007 3:44 AM: > Bash Version: 3.0 > Patch Level: 16 Bash is now at 3.2 patchlevel 25. You may want to consider upgrading. > Following is the code (in a shell script)which redirects find command > output to a file called "src". But this command generates a file called > "src?" instead. Sounds to me like your script has spurious carriage returns or other invisible characters. For the cygwin release of bash, I have added a downstream patch to provide a shell option igncr, named after the stty option, that makes bash ignore all carriage returns on input, when enabled. Is there any interest in having that option on all platforms, rather than just Cygwin? If so, I will try to clean up the patch and post it here. - -- Don't work too hard, make some time for fun as well! Eric Blake [EMAIL PROTECTED] -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.5 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFG5oWy84KuGfSFAYARAiK+AKCB5faqrKs6i0cux7AbwA+Gu1CAtgCeMgTK JKBjgWM5Qh95noVCvtIFm/I= =BJ7m -END PGP SIGNATURE-
Wrong input confuses bash's arithmetic unit permanently
Configuration Information [Automatically generated, do not change]: Machine: i686 OS: linux-gnu Compiler: gcc Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i686' -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-redhat-linux-gnu' -DCONF_VENDOR='redhat' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL -DHAVE_CONFIG_H -I. -I. -I./include -I./lib -D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables uname output: Linux kosh.bigo.ensc.de 2.6.22.3-ensc-1 #1 SMP PREEMPT Thu Aug 16 23:36:51 CEST 2007 i686 i686 i386 GNU/Linux Machine Type: i686-redhat-linux-gnu Bash Version: 3.2 Patch Level: 9 Release Status: release Description: A syntactical wrong statement will confuse bash permanently so that arithmetic operations return wrong results. Repeat-By: [copy from https://bugzilla.redhat.com/show_bug.cgi?id=286861] $ i=0 $ let ++i $ echo $i 1 $ let tmp="foo.a"+0 bash: let: tmp=foo.a+0: syntax error: invalid arithmetic... $ i=0 $ let ++i $ echo $i 0 --> every further use of 'let' will generate bogus results. bash-3.1 returns expected results.
-d option not working. . .?
Hi All,
I've got a script that I'm trying to set up, but it keeps telling me
that "[-d command not found". Can someone please explain what is
wrong with this?:
#!/bin/sh
for i in $*
do
{
if [-d $i]
then
echo "$i is a directory! Yay!"
else
echo "$i is not a directory!"
fi
}
done
Regards,
Michael
Re: -d option not working. . .?
Michael Williams wrote: > if [-d $i] That is not the correct syntax. The [ is a shell builtin, not a shell metacharacter. Shell metacharacters do not need to be separated by whitespace but the test program needs to be apart or it won't be parsed right. That is why you are seeing "[-d" not found. It is not a parenthesis as in some programming languages. The [ is a synonym for the "test" operator. It is a command like grep, sed, awk, etc. [ -d /tmp ] && echo /tmp is a dir Do it this way. if [ -d "$i" ] Note that you should quote the argument to protect against whitespace there. Bob
