io-redirection

问题 My intent was to have all the output of my bash script displayed on the console and logged to a file. Here is my script that works as expected. #!/bin/bash LOG_FILE="test_log.log" touch $LOG_FILE # output to console and to logfile exec > >(tee $LOG_FILE) 2>&1 echo "Starting command ls" ls -al echo "End of script" However I do not understand why it works that way. I expected to have exec >>(tee $LOG_FILE) 2>&1 work but it fails although exec >>$LOG_FILE 2>&1 indeed works. I could not find the

问题 My intent was to have all the output of my bash script displayed on the console and logged to a file. Here is my script that works as expected. #!/bin/bash LOG_FILE="test_log.log" touch $LOG_FILE # output to console and to logfile exec > >(tee $LOG_FILE) 2>&1 echo "Starting command ls" ls -al echo "End of script" However I do not understand why it works that way. I expected to have exec >>(tee $LOG_FILE) 2>&1 work but it fails although exec >>$LOG_FILE 2>&1 indeed works. I could not find the

问题 i'm trying to output to eventlog to the correct Entry Type (Information,Warning,Error) based on the stream that is coming out of my cmdlet, something like this: function myfunction { Param( [switch]$stream1, [switch]$stream2 ) if ($stream1) {write-output 'stream 1 msg'} if ($stream2) {write-error 'stream 2 msg'} } $eventlogparams = @{'logname'='application';'source'='myapp';'eventid'='1'} myfunction -stream1 -stream2 ` 1> write-eventlog @eventlogparams -entrytype information -message $_ ` 2>

问题 i'm trying to output to eventlog to the correct Entry Type (Information,Warning,Error) based on the stream that is coming out of my cmdlet, something like this: function myfunction { Param( [switch]$stream1, [switch]$stream2 ) if ($stream1) {write-output 'stream 1 msg'} if ($stream2) {write-error 'stream 2 msg'} } $eventlogparams = @{'logname'='application';'source'='myapp';'eventid'='1'} myfunction -stream1 -stream2 ` 1> write-eventlog @eventlogparams -entrytype information -message $_ ` 2>

问题 I have this long process in a bash script (one of many) and so I'm experimenting with sending all output to a separate window to monitor, with any errors logged to errorlog.txt . For example: rsync -vahPz foo@bar:/bigfolder/ ./ >> /dev/pts/4 2>> errorlog.txt Trouble is that above doesn't display any errors on the separate window. Is there a way to redirect errors to both my separate window at /dev/pts/4 and errorlog.txt , while still redirecting normal output to /dev/pts/4 too? Something like

问题 I have this long process in a bash script (one of many) and so I'm experimenting with sending all output to a separate window to monitor, with any errors logged to errorlog.txt . For example: rsync -vahPz foo@bar:/bigfolder/ ./ >> /dev/pts/4 2>> errorlog.txt Trouble is that above doesn't display any errors on the separate window. Is there a way to redirect errors to both my separate window at /dev/pts/4 and errorlog.txt , while still redirecting normal output to /dev/pts/4 too? Something like

问题 This question already has answers here : Using printf in assembly leads to an empty ouput (2 answers) Can ptrace tell if an x86 system call used the 64-bit or 32-bit ABI? (1 answer) What happens if you use the 32-bit int 0x80 Linux ABI in 64-bit code? (1 answer) Closed 7 days ago . I'm trying to write a Python script to test the output of some various code I've written in assembly against an expected output. However I am having difficulty redirecting the output into a file. I have written the

问题 In reference to https://stackoverflow.com/a/11886837/1996022 (also shamelessly stole the title) where the question is how to capture the script's output I would like to know how I can additionally capture the scripts input. Mainly so scripts that also have user input produce complete logs. I tried things like exec 3< <(tee -ia foo.log <&3) exec <&3 <(tee -ia foo.log <&3) But nothing seems to work. I'm probably just missing something. 回答1: Maybe it'd be easier to use the script command? You

问题 Using this script: https://github.com/byterogues/powershell-bittrex-api which I call from another script. e.g. $order = .\bittrex-api.ps1 -action buylimit -market BTC-TX -quantity 1 -rate 0.00011300 bittrex-api.ps1 catches an error and shows this on screen BITTREX ERROR: API Query returned an error. Error Message: MIN_TRADE_REQUIREMENT_NOT_MET How can I capture the output from bittrex-api.ps1 into a variable so I can use this variable in my base script? 回答1: You can't. The script uses Write

问题 Using this script: https://github.com/byterogues/powershell-bittrex-api which I call from another script. e.g. $order = .\bittrex-api.ps1 -action buylimit -market BTC-TX -quantity 1 -rate 0.00011300 bittrex-api.ps1 catches an error and shows this on screen BITTREX ERROR: API Query returned an error. Error Message: MIN_TRADE_REQUIREMENT_NOT_MET How can I capture the output from bittrex-api.ps1 into a variable so I can use this variable in my base script? 回答1: You can't. The script uses Write