I know I might sound weird but I wa开发者_JAVA技巧s wondering if I could do a if [ tar -xvf ] on some file and that will return me true or false .
This question already has answers here: Why do shell script comparisons often use x$VAR = xyes? (7 answers)
I have this svn project... to get a list of unadded files (in my case, hundreds): svn status |grep \"^?\"
I want to have Javascript run say cmd.exe if there is already not one running. I was hoping there is a way to have javascript look 开发者_如何转开发at running processes and then if the name is in the
I\'m looking for mutex/semaphore/concurrency mechanism in shell script. Consider following situation:
I have a couple of requirements to be satisfied using shell scripts. Since I am trio in this area, i would certainly need your help.
Im writ开发者_JS百科ing a shell script where I need to store the folders in a particular path in an array.
Trying to run perl system command with a full blown shell environment. Similar to Python\'s Popen with shell=True. Tried system(\'/bin/bash -c \"something\"\') and that didn\'t work. Someone hook a no
I have a pipe delimited file as below 1|Mike|2000|2| 2|Peter|4000|2| ..... ... .... and so on. I want to remove the leading and trailing spaces between fields. It should look like as below
Why does every example I see have while IFS= read line and not while IFS=; read line? I thought that name=value command might set a l开发者_运维知识库ocal variable but sentence=\"hello\" echo $sente
加载中,请稍侯......