use Foriegn Language to record life

we can use [ -f  file.name ]  ,this shell to check whether exists or not.  however  we should take a close look at the writting format. there should be must a space between bracket [ ]， if there is a

for varname in listdo command1 command2 ..donefor, in, do and done are keywords“list” contains list of values. The list can be a variable that contains several words separated by spaces. If l

the following shell script are looping all files of a folder ,and then find the keyword from every fileFILES=/path/to/*for f in $FILESdo echo "Processing $f file..." # take action on each file

find myproject -type f 1xargs grep"CashEnum" {} /dev/null\;

Install SVN (Subversion) Server on Fedora 19/18/17/16/15/14, CentOS 6.4/6.3/6.2/6.1/6/5.9, Red Hat (RHEL) 6.4/6.3/6.2/6.1/6/5.91. Change root usersu -## OR ##sudo -i2. Inst