In case you want to check if more than one file exists, you can still do so. Similar to the above situations, use “-f” and test if a file you’re trying to locate is still there. Separate the files by using th
Check If Directory Exists In order to check if a directory exists in Bash, you have to use the “-d” option and specify the directory name to be checked. if [[ -d "$DIRECTORY" ]] then echo "$DIRECTORY exists on your filesystem." fi As an example, let’s say that you want to...
Let’s take a look at the code that is used to check if the directory of the folder exists in our system or not. For that, we will be using a purely new folder. Therefore, within the terminal shell query area, we have tried the “mkdir” command to create a new directory named “...
# input check: if [ -z "$1" ] ; then error "ERROR: you must specify a file, use -h for help" fi filen="$1" # rename any .1 , .2 etc file: for n in 9 8 7 6 5 4 3 2 1; do if [ -f "$filen.$n" ]; then p=`expr $n + 1` echo "mv $filen.$n $filen...
check if folder not exist if [ ! -d "$PROJECTNAME" ] then printf "\n Repo $PROJECTNAME folder does not exist..\n" else printf "\n Repo $PROJECTNAME folder already exist..\n" fi Array Create array # method 1 declare -a FontColor=() #method 2 FontColor[0]='yellow' FontColor[...
if ...; then ... elif ...; then ... else ... fi 大多数情况下,可以使用测试命令来对条件进行测试。比如可以比较字符串、判断文件是否存在及是否可读等等… 通常用" [ ] "来表示条件测试。注意这里的空格很重要。要确保方括号的空格。 [ -f ...
CSV是一种紧凑，简单且通用的数据交换通用格式。许多在线服务允许其用户将网站中的表格数据导出到CSV文件...
github_release.sh - creates a GitHub Release, auto-incrementing a .N suffix on the year/month/day date format if no exact version given github_repo_check_pat_token.sh - checks the given PAT token can access the given GitHub repo. Useful to test a PAT token used for integrations like ...
if [ -r "$rpmpackage" ];then echo "=== $rpmpackage ===" rpm -qi -p $rpmpackage else echo "ERROR: cannot read file $rpmpackage" fi done 这里出现了第二个特殊的变量$*,该变量包含了所有输入的命令行参 数值。如果您运行showrpm openssh.rpm...
Check if Command Exists in Bash Bash Add Character to String Bash Create Folder if Not Exists Get Everything After Character in Bash Bash Log Output to File Check if String Starts with Another String in Bash Bash Check If grep Result Is Empty Get Random Number Between 1 and 100 in Bash ...