{"id":5847,"date":"2023-02-16T18:43:19","date_gmt":"2023-02-16T13:13:19","guid":{"rendered":"https:\/\/trysiteprice.com\/blog\/?p=5847"},"modified":"2023-02-16T18:43:19","modified_gmt":"2023-02-16T13:13:19","slug":"linux-unix-check-if-file-is-empty-or-not-using-shell-script","status":"publish","type":"post","link":"https:\/\/trysiteprice.com\/blog\/linux-unix-check-if-file-is-empty-or-not-using-shell-script\/","title":{"rendered":"Linux \/ UNIX: Check If File Is Empty Or Not Using Shell Script"},"content":{"rendered":"

To check if a file is empty or not using a shell script in Linux or UNIX, you can use the test<\/code> command with the -s<\/code> option, which checks if the file is non-empty. Here’s an example shell script that checks if a file is empty or not:<\/p>\n

\n
<\/div>\n
#!\/bin\/bash<\/span><\/p>\n

if<\/span> [ -s \"\/path\/to\/file\"<\/span> ]
\nthen<\/span>
\n echo<\/span> \"The file is not empty.\"<\/span>
\nelse<\/span>
\n echo<\/span> \"The file is empty.\"<\/span>
\nfi<\/span>
\n<\/code><\/div>\n<\/div>\n

In this script, replace \/path\/to\/file<\/code> with the path to the file you want to check. The test<\/code> command with the -s<\/code> option returns true if the file is non-empty, and false if the file is empty. The if<\/code> statement checks the result of the test<\/code> command and prints a message indicating whether the file is empty or not.<\/p>\n

You can also use the wc<\/code> command to count the number of lines, words, and characters in a file, and check if the line count is zero. Here’s an example script that uses wc<\/code> to check if a file is empty or not:<\/p>\n

\n
<\/div>\n
#!\/bin\/bash<\/span><\/p>\n

if<\/span> [ $(wc<\/span> -l < \"\/path\/to\/file\"<\/span>) -eq 0 ]
\nthen<\/span>
\n echo<\/span> \"The file is empty.\"<\/span>
\nelse<\/span>
\n echo<\/span> \"The file is not empty.\"<\/span>
\nfi<\/span>
\n<\/code><\/div>\n<\/div>\n

In this script, the wc -l<\/code> command counts the number of lines in the file, and the output is piped to the if<\/code> statement, which checks if the line count is zero. If the line count is zero, the script prints a message indicating that the file is empty. Otherwise, it prints a message indicating that the file is not empty.<\/p>\n","protected":false},"excerpt":{"rendered":"

To check if a file is empty or not using a shell script in Linux or UNIX, you can use the test command with the -s option, which checks if the file is non-empty. Here’s an example shell script that checks if a file is empty or not: #!\/bin\/bash if [ -s “\/path\/to\/file” ] then … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5847","post","type-post","status-publish","format-standard","hentry","category-best-tutorial"],"yoast_head":"\nLinux \/ UNIX: Check If File Is Empty Or Not Using Shell Script - TrySitePrice<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/trysiteprice.com\/blog\/linux-unix-check-if-file-is-empty-or-not-using-shell-script\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux \/ UNIX: Check If File Is Empty Or Not Using Shell Script - TrySitePrice\" \/>\n<meta property=\"og:description\" content=\"To check if a file is empty or not using a shell script in Linux or UNIX, you can use the test command with the -s option, which checks if the file is non-empty. 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