WebFeb 21, 2024 · Reads a line until the provided instead of a new line.-e: Starts an interactive shell session to obtain the line to read.-i Adds initial text before reading a line as a prefix.-n Returns after reading the specified number of characters while honoring the delimiter to terminate early.-N Web3. Until Loop. Until loop is one of the looping statements in the shell scripting and this looping statement is similar to the while loop statement which we have discussed earlier. The difference between two is, it will execute the body of the loop until the conditional statement becomes true whereas while loop executes commands if the ...
Web409. = and == are for string comparisons. -eq is for numeric comparisons. -eq is in the same family as -lt, -le, -gt, -ge, and -ne. == is specific to bash (not present in sh (Bourne shell), … WebJun 16, 2024 · I am trying to use ansible loop until the condition is met. I can use until if the output is only single line, however if the output is multiple lines, I will need to use stdout_lines but fail to do so. If output is single line: - name: check on sync status shell: some command register: sync_status until: sync_status.stdout == 'SSUS'. mt pleasant oregon city
How to Use until Loop in Your Shell Scripts
WebMar 23, 2024 · Single Line Statement Alter Flow with break and continue Statement. You can use a break and continue statements inside while loop. The break statement will exit out … WebNov 15, 2016 · until [ -f /tmp/examplefile.txt ] do sleep 5 done echo "File found" exit Info: Use -d instead of -f to check for directories, or -e to check for files or directories. Every 5 seconds it will wake up and look for the file. When the file appears, it will drop out of the loop, tell you it found the file and exit (not required, but tidy.) WebUntil conditional loop statement. Until-do-done: When the condition condition is established, the loop is terminated, or the program segment is continuously cycled. That is, only the exit status code of the test command is not 0,bash Shell executes the commands listed in the loop, and once the test command returns exit status code 0, the loop ends. mt pleasant pa high school