Linux:如何记录 屏幕输出

在LINUX中如何记录屏幕的输出呢？

这里用到工具tee:

                   tee - read from standard input and write standard output and files [man]

扫下盲：对与LINUX，有0，1，2三个默认的FILE NO：

                  0 - Key Board Input

                  1 - Screen Output

                   2 - Error Outpu

如果需要将屏幕输入到文件，比如现在需要dvblast这个命令的使用方法：

                   ./dvblast 2>&1| tee XXX.txt

Here is the result<as a records>:

Usage: dvblast [-q] -c <config file> [-r <remote socket>] [-t <ttl>] [-o <SSRC IP>] [-i <RT priority>] [-a <adapter>] [-n <frontend number>] [-S <diseqc>] -f <frequency> [-s <symbol rate>] [-v <0|13|18>] [-p] [-b <bandwidth>] [-m <modulation] [-u] [-W] [-U] [-d <dest IP:port>] [-e] [-T]
-q: be quiet (less verbosity, repeat or use number for even quieter)
-v: voltage to apply to the LNB (QPSK)
-p: force 22kHz pulses for high-band selection (DVB-S)
-S: satellite number for diseqc (0: no diseqc, 1-4, A or B)
-m: DVB-C qpsk|qam_16|qam_32|qam_64|qam_128|qam_256 (default qam_auto)
DVB-T qam_16|qam_32|qam_64|qam_128|qam_256 (default qam_auto)
DVB-S2 qpsk|psk_8 (default legacy DVB-S)
-u: turn on budget mode (no hardware PID filtering)
-W: add extra delays for slow CAMs
-U: use raw UDP rather than RTP (required by some IPTV set top boxes)
-d: duplicate all received packets to a given destination
-e: enable EPG pass through (EIT data)
-T: generate unique TS ID for each program