Perl 函式 - umask

<div style="margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-weight: 400; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: arial, "Century Gothic", 微軟正黑體; vertical-align: baseline; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; color: rgb(68, 68, 68); letter-spacing: 0.8px; background-color: rgb(255, 255, 255);"> <h2 class="ih-heading" style="margin: 0px 0px 25px; padding: 0px; border-width: 0px 0px 2px; border-top-style: initial; border-right-style: initial; border-bottom-style: solid; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: rgb(0, 0, 0); border-left-color: initial; border-image: initial; font-style: inherit; font-variant: inherit; font-weight: 400; font-stretch: inherit; font-size: 2rem; line-height: 1; font-family: inherit; vertical-align: baseline; color: inherit; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; letter-spacing: 0.7px; background-color: rgb(255, 255, 255); box-sizing: border-box;"> ■ 語 法

umask EXPR

umask

<div style="margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-weight: 400; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: arial, "Century Gothic", 微軟正黑體; vertical-align: baseline; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; color: rgb(68, 68, 68); letter-spacing: 0.8px; background-color: rgb(255, 255, 255);"> <h2 class="ih-heading" style="margin: 0px 0px 25px; padding: 0px; border-width: 0px 0px 2px; border-top-style: initial; border-right-style: initial; border-bottom-style: solid; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: rgb(0, 0, 0); border-left-color: initial; border-image: initial; font-style: inherit; font-variant: inherit; font-weight: 400; font-stretch: inherit; font-size: 2rem; line-height: 1; font-family: inherit; vertical-align: baseline; color: inherit; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; letter-spacing: 0.7px; background-color: rgb(255, 255, 255); box-sizing: border-box;"> ■ 用 法

① 此函數會設定程序的 umask 值，並回傳舊的 umask 值。

② 若 EXPR 被省略了，則會回傳目前的 umask。

<div style="margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-weight: 400; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: arial, "Century Gothic", 微軟正黑體; vertical-align: baseline; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; color: rgb(68, 68, 68); letter-spacing: 0.8px; background-color: rgb(255, 255, 255);"> <h2 class="ih-heading" style="margin: 0px 0px 25px; padding: 0px; border-width: 0px 0px 2px; border-top-style: initial; border-right-style: initial; border-bottom-style: solid; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: rgb(0, 0, 0); border-left-color: initial; border-image: initial; font-style: inherit; font-variant: inherit; font-weight: 400; font-stretch: inherit; font-size: 2rem; line-height: 1; font-family: inherit; vertical-align: baseline; color: inherit; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; letter-spacing: 0.7px; background-color: rgb(255, 255, 255); box-sizing: border-box;"> ■ 範 例

程式碼

<div class="jane_bar" style="margin: auto auto 15px; padding: 15px; border: 0px dotted gray; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-weight: 400; font-stretch: inherit; line-height: 20px; font-family: "Microsoft JhengHei", cwTeXHei, "Open Sans"; vertical-align: baseline; letter-spacing: 1px; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; border-radius: 0px; width: 100%; background-color: rgb(237, 237, 237); box-sizing: border-box; text-align: left;"> print("The current umask is: ", umask(), "\n");

結果

<div class="jane_bar" style="margin: auto auto 15px; padding: 15px; border: 0px dotted gray; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-weight: 400; font-stretch: inherit; line-height: 20px; font-family: "Microsoft JhengHei", cwTeXHei, "Open Sans"; vertical-align: baseline; color: rgb(40, 40, 40); letter-spacing: 1px; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; border-radius: 0px; width: 100%; background-color: rgb(237, 237, 237); box-sizing: border-box; text-align: left;"> The current umask is: 18

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＃關鍵字 Perl 函式 - umask用法；Perl 函式 - umask語法；Perl 函式 - umask範例；

<div style="margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-weight: 400; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: arial, "Century Gothic", 微軟正黑體; vertical-align: baseline; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; color: rgb(68, 68, 68); letter-spacing: 0.8px; background-color: rgb(255, 255, 255);"> <h2 class="ih-heading" style="margin: 0px 0px 25px; padding: 0px; border-width: 0px 0px 2px; border-top-style: initial; border-right-style: initial; border-bottom-style: solid; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: rgb(0, 0, 0); border-left-color: initial; border-image: initial; font-style: inherit; font-variant: inherit; font-weight: 400; font-stretch: inherit; font-size: 2rem; line-height: 1; font-family: inherit; vertical-align: baseline; color: inherit; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; letter-spacing: 0.7px; background-color: rgb(255, 255, 255); box-sizing: border-box;"> ■ Perl 其它函數

▶ Perl 函式|函數|指令集

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