#!/bin/csh set file = "example.txt" if (-e $file) then echo "The file exists." else echo "The file does not exist." endif 在这个例子中,我们通过if语句判断文件"example.txt"是否存在。如果条件成立,即文件存在,那么输出"The file exists.";否则,输出"The file does not exist."。 例子3:...
-b file True if file exists and is a block special file. -c file True if file exists and is a character special file. -d file True if file exists and is a directory. -e file True if file exists. (Not avail- able in sh.) -f file True if file exists and is a regular file....
1、第一种if-then语句 bash shell的if语句会运行if后面的那个命令。如果该命令的退出状态码是0(该命令成功运行),位于then部分的命令就会被执行。如果该命令的退出状态码是其他值,then部分的命令就不会被执行,bash shell会继续执行脚本中的下一个命令。fi语句用来表示if-then语句到此结束。 if-then语句格式: if命...
/bin/bash FILE="example.txt" STR1="hello" STR2="world" # 检查文件是否存在 if [ -f "$FILE" ]; then echo "File $FILE exists." else echo "File $FILE does not exist." fi # 比较两个字符串 if [ "$STR1" = "$STR2" ]; then echo "Strings are equal." else echo "Strings are...
#check file exists if [ -e $HOME/testing ] then #file exists,apped file it echo "appending date to existis file " date >> $HOME/testing else # the file not exists ,create new file echo "createing new file" date > $HOME/testing ...
func (csh cniServerHandler) deleteNic(podName, podNamespace, containerID, deviceID string) error { hostNicName, _ := generateNicName(containerID) // Remove ovs port output, err := ovs.Exec("--if-exists", "--with-iface", "del-port", "br-int", hostNicName) @@ -77,18 +77,19...
0 : 2 ] += ((opts.height) + 15); + }, + + afterShow: function (opts, obj) { + //Check if exists and create or update list + if (this.list) { + this.onUpdate(opts, obj); + + } else { + this.init(opts, obj); + } + + //Set active element + this.list.child...
do you know if with csh you can make functiions llike ksh? it means, with ksh there is a variable specially to redirect a path where there will be functions .. do you kwno if this exists to csh? Thanks, Manuales. James R. Ferguson ...
do you kwno if this exists to csh?Thanks, Manuales. 0 Kudos Reply James R. Ferguson Acclaimed Contributor 12-14-2005 06:35 AM Re: If sentence .. Hi Manuales:The 'csh' shell is far inferior to the Posix ('usr/bin/sh'), 'ksh', and 'bash' shells.See here, for ...
-f, --force Overwrite given output file. (Otherwise an IOError will be raised if <outfile> already exists. -D <define> Define a variable for preprocessing. <define> can simply be a variable name (in which case it will be true) or it can be of the form =<val>. An attempt will b...