function too_early { local -i hour hour=$(/usr/bin/date +%H)|| exit 100 test "$hour" -gt 18 && return 0|| return 1 } # No updates during the weekend, so don't bother (not an error) is_week_day || exit 0 # Don't
设置关联数组 值并发生重复赋值时,bash会覆盖该键。这 允许我们有效地删除数组重复。 CAVEAT:需要bash4+ 示例功能: remove_array_dups() { # Usage: remove_array_dups "array" declare -A tmp_array for i in "$@"; do [[ $i ]] && IFS=" " tmp_array["${i:- }"]=1 done printf '%s\n'...
# Example (Exit early if program is not installed). if ! type -p convert &>/dev/null; then printf '%s\n' "error: convert is not installed, exiting..." exit 1 fi 使用获取当前日期 strftime Bash printf有一个内置的获取日期的方法,可用于代替date命令。 CAVEAT:需要bash4+ 示例功能: date()...
You may need to stop your step immediately. You can use the normal exit function available in Bash to quit the step prematurely.echo "Exiting now!" 1>&2 exit 1⚠️ Using exit to quit a Bash step early won’t stop the execution of the rest of the workflow. Exiting a Bash step ...
I have dozens of scripts—short and long—that I've written and modified over the years. Some of my most useful scripts have been to perform regular backups early each morning, install updated software packages with fixes and enhancements, and upgrade from one version of Fedora to the next....
puppet: Exit early on -h|-V|--version in addition to --help (f94d1a6) puppet: Parse most subcommand options from "help subcommand" output (00a80a2) puppet: Recognize some short options (dbe7325) (testsuite) Add puppet subcommand option test case (d748a5a) mpv: New completion alias ...
Aforloop increments a variable automatically. To add a conditional statement and exit aforloop early, use abreakstatement. The following code shows an example of using abreakwithin aforloop: #!/bin/bash for i in {1..10} do if [[ $i == '2' ]] ...
fi # Example (Exit early if program is not installed). if ! type -p convert &>/dev/null; then printf '%s\n' "error: convert is not installed, exiting..." exit 1 fiGet the current date using strftimeBash’s printf has a built-in method of getting the date which can be used in...
script in another language early to avoid a time-consuming rewrite at a later date. 訳 100行以上の長さのスクリプトを書いているならば、おそらくその代わりにPythonで書くべきです。 スクリプトが成長することに注意してください。後の時間のかかる修正を避けるために、別の言語で スクリプ...
值并发生重复赋值时,bash会覆盖该键。这 允许我们有效地删除数组重复。 CAVEAT:需要bash4+ 示例功能: remove_array_dups() {# Usage: remove_array_dups "array"declare-A tmp_arrayforiin"$@";do[[$i]] && IFS=" "tmp_array["${i:- }"]=1doneprintf'%s\n'"${!tmp_array[@]}"} ...