csh、ksh88、ksh、sh builtin ksh case csh、ksh88、ksh、sh cd csh、ksh88、ksh、sh chdir csh、sh command ksh +*continue csh、ksh88、ksh、sh dirs csh disown ksh echo csh、ksh88、ksh、sh enum ksh +*eval csh、ksh88、ksh、sh +*exec csh、ksh88、ksh、sh +*exit csh、ksh88、ksh、sh ...
$ csh $ if [ -f /export/home/insite/.insiteINFO ] ; then echo "1" ; else echo "0" ; fi if: Expression Syntax. then: Command not found. else? Run Code Online (Sandbox Code Playgroud) 尝试将测试包装在 /bin/sh 中: $ /bin/sh -c 'if [ -f /export/home/insite/.insiteINFO...
# the multiple command in the then-if rhce=student # if greprhce/etc/passwd;thenecho"thisisrhcsa";echo"thisisrhce";echo"thisisputincommandecho:";ls−a/home/rhce/.b* fi 12.2 if-then-else语句 在if-then语句中,不管命令是否成功执行,你都只有一种选择。如果命令返回一个非零退出状态码,bash ...
if [ "$1" = "pear" ] | | [ "$1" = "grape" ] | | [ "$1" = "apple" ] then command fi case "$1" in pear|grape|apple) command;; esac test 組み込みコマンド 以下の例では、Bourne シェルの if に続いて test 組み込みコマンドの 2 つの形式を記します。 例3 sh 組...
In the first form of the utility shown using the SYNOPSIS: test [ condition ] the square brackets denote that condition is an optional operand and are not to be entered on the command line. In the second form of the utility shown using the SYNOPSIS: ...
The node version installs a command line tool xlsx which can read spreadsheet files and output the contents in various formats. The source is available at xlsx.njs in the bin directory. Some helper functions in XLSX.utils generate different views of the sheets: XLSX.utils.sheet_to_csv generat...
From the command line on UNIX. For example, incsh: setenv BSUB_STDERR Y From the Control Panel on Windows, as an environment variable CLEARCASE_DRIVE Syntax CLEARCASE_DRIVE=drive_letter: Description Optional, Windows only. Defines the virtual drive letter for aRational ClearCaseview to the driv...
for循环一般格式为: for 变量 in 列表 do command1 command2 ... commandN done 列表是一组值(数字、字符串等)组成的序列,每个值通过空格分隔。每循环一次,就将列表中的下一个值赋给变量。i... Runnyu 0 237 shell脚本之if语句 2019-08-16 17:10 − shell脚本的if 语句 if语句: if条件语句的...
1. What does the 'ifconfig' command stand for? A. Interface Configuration B. Internet Configuration C. Interface Control D. Internet Control Show Answer 2. Which of the following tasks can 'ifconfig' perform? A. Display current network configuration B. Enable or disable a network ...
1. What is the primary purpose of the ifrename command? A. To rename network interfaces B. To change file permissions C. To copy files D. To move files Show Answer 2. Which option can be used to specify a new name for an interface with ifrename? A. -n B. -s C. -...