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I'm going to be running a shell script containing a CP command using a scheduled cron job. I would like to include in the script something to output to a log file whether the copy was successful or failed.
Appreciate any advice in advance.
Thanks
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Right-click the top result and select the Run as administrator option. Type the following command to save the output to a text file and press Enter: YOUR-COMMAND | Out-File -FilePath C:\PATH\TO\FOLDER\OUTPUT. txt.
To view output when files are copied, use the -v (verbose) option. By default, cp will overwrite files without asking. If the destination file name already exists, its data is destroyed. If you want to be prompted for confirmation before files are overwritten, use the -i (interactive) option.
variable in Linux. “$?” is a variable that holds the return value of the last executed command. “echo $?” displays 0 if the last command has been successfully executed and displays a non-zero value if some error has occurred.
cp command require at least two filenames in its arguments. Syntax: cp [OPTION] Source Destination cp [OPTION] Source Directory cp [OPTION] Source-1 Source-2 Source-3 Source-n Directory First and second syntax is used to copy Source file to Destination file or Directory.
You can check the return code of cp. From the cp man page:
EXIT STATUS
The cp utility exits 0 on success, and >0 if an error occurs.
The exit code of the last operation is stored in the special variable $?, so you can do something like this:
cp .. ..
echo $? >> outputfile
Most likely, you'll want to have some sort of "custom" error message. For that purpose, you can check the value of $?
cp .. ..
if [ $? -ne 0 ]
then
echo "there was an error" >> outputfile
fi
I hope that gets you started.
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