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Shell Programming and Scripting
Lock file creates with '?'
Post 302777853 by sandy162 on Friday 8th of March 2013 01:22:49 PM
03-08-2013
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Hi,
I have created a test script like this :
# cat script1.sh
DAY=$(date +%d)
MONTH=$(date +%b)
YEAR=$(date +%Y)
BC01="Blast_BC01"
BC15="Blast_BC15"
DIR1="$MONTH$YEAR_$BC01"
DIR2="$MONTH$YEAR_$BC07"
DIR3="$MONTH$YEAR_$BC15"
if ;then
mkdir -p "$YEAR/$DIR3"
fi
#
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LEARN ABOUT DEBIAN
ost_lockfile
ost::Lockfile(3) Library Functions Manual ost::Lockfile(3) NAME
ost::Lockfile - This class is used to create a 'named' lock entity that can be used to control access to a resource between multiple processes. SYNOPSIS
#include <process.h> Public Member Functions Lockfile (const char *name) Create a lock under a known name. Lockfile () Create a new lock object that can be used to make locks. ~Lockfile () Destroy the current lock and release it. bool lock (const char *name) Lock a system-wide name for this process. void unlock (void) Release an acquired lock. bool isLocked (void) Flag if the current process has aqcuired a lock. Detailed Description This class is used to create a 'named' lock entity that can be used to control access to a resource between multiple processes. The posix implimentation uses a pidfile and the win32 version uses a globally visible mutex. Author: David Sugar dyfet@ostel.com System-wide named lock Constructor &; Destructor Documentation ost::Lockfile::Lockfile (const char *name) Create a lock under a known name. Parameters: name of system-wide lock to create. ost::Lockfile::Lockfile () Create a new lock object that can be used to make locks. ost::Lockfile::~Lockfile () [inline] Destroy the current lock and release it. Member Function Documentation bool ost::Lockfile::isLocked (void) Flag if the current process has aqcuired a lock. Returns: true if we have the lock. bool ost::Lockfile::lock (const char *name) Lock a system-wide name for this process. If the lock is successful, return true. If an existing lock was already acquired, release it first. Returns: true if lock successful. Parameters: name system-wide lock to use. void ost::Lockfile::unlock (void) Release an acquired lock. Author Generated automatically by Doxygen for GNU CommonC++ from the source code. GNU CommonC++ Sat Jun 23 2012 ost::Lockfile(3)