echo $name set name = "Mark Meyer" # if the string has space, must use "" echo $name # it means set to NULL set name = unset name # get user input set x = $< set current_user = `whoami` #buildin vars echo $user # who am I? echo $status # a numeric variable, usually u...
-d file file is a directory ! -- negate && -- logical and || -- logical or #if-else # run cmd as if expression if ({grep -s junk $1}) then echo"We found junk in file $1" endif # check if the var is defined if ($?dirname) then ls $dirname endif if (-e somefile) t...
-d file file is a directory ! -- negate && -- logical and || -- logical or #if-else # run cmd as if expression if ({grep -s junk $1}) then echo"We found junk in file $1" endif # check if the var is defined if ($?dirname) then ls $dirname endif if (-e somefile) t...
set name = "Mark Meyer" # if the string has space, must use ""echo $name # it means set to NULL set name = unset name # get user input set x = $< set current_user = `whoami`#buildin vars echo $user # who am I?echo $status # a numeric variable, usually used to re...
bash来⾃于BSD Unix，语法⾮常类似于C语⾔，所以通常有C/C++编程背景的开发⼈员最喜欢使⽤。ksh是对sh的扩展，且吸收了csh的⼀些有⽤的功能，但是由于开始ksh的license是AT&T，所以后来出现了很多的ksh的开源版本，例如mksh，pdksh等。bash是现在很多Linux的发⾏版中默认的shell，综合了其他shell的很多...
If noclobber is set, it is an error for the file not to exist, unless one of the ! forms is used. The & forms append both the standard error and standard output to the file.Variable SubstitutionThe C shell maintains a set of variables, each of which is composed of a name and a ...
The difference is in the default setting of theecho_stylevariable which controls the way the echo treats the escape sequences (see# man cshfor details) On RHEL-4 Raw ~]$ echo $echo_style bsd On RHEL-5 Raw ~]$ echo $echo_style ...
If C shell is already running, the.cshrcfile can be read again by typingsourcePathname, where thePathnameparameter is the path to the.cshrcfile. To avoid problems with remote operations, the.cshrcfile should not contain any functions that echo output unless they test for the$promptvariable, wh...
XLSX is the exposed variable in the browser and the exported node variable XLSX.version is the version of the library (added by the build script). XLSX.SSF is an embedded version of the format library. Parsing functions XLSX.read(data, read_opts) attempts to parse data. XLSX.readFile(file...
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