diff和sdiff使用心得

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在Linux下，有很多个文档比较工具，diff，sdiff, comm, cmp等。整体来说都不是很好用。
相对而言，还是sdiff功能比较强大一些。
Example 1： sdiff -s 1.txt 2. txt

-s:
--suppress-common-lines:
Do not print common lines

-w columns
--width=columns
Use an output width of columns. Note that for historical reasons, this option is -W in diff, -w in sdiff.

Example 1: do not print common line
[root@localhost ~]# sdiff -s 1.bashrc 2.bashrc
# box to box deployment |# 1004 box to box deployment
alias 109='telnet 10.74.9.109' <
#switcher information |# public switcher information
alias 185='ssh asr@10.74.9.185' |
alias 190='ssh asr@10.74.9.190' |
> # linux virtual machine
> alias 185='ssh -X asr@10.74.9.185'
> alias 190='ssh -X asr@10.74.9.190'
> alias 203='ssh asr@10.74.30.203'
> alias 204='ssh asr@10.74.30.204'
> alias 205='ssh asr@10.74.30.205'
[root@localhost ~]#

Example 1: specify colomn
[root@localhost ~]# sdiff -s -w 150 1.bashrc 2.bashrc
# box to box deployment |# 1004 box to box deployment
alias 109='telnet 10.74.9.109' <
#switcher information |# public switcher information
alias 185='ssh asr@10.74.9.185' |
alias 190='ssh asr@10.74.9.190' |
> # linux virtual machine
> alias 185='ssh -X asr@10.74.9.185'
> alias 190='ssh -X asr@10.74.9.190'
> alias 203='ssh asr@10.74.30.203'
> alias 204='ssh asr@10.74.30.204'
> alias 205='ssh asr@10.74.30.205'
[root@localhost ~]#