Shulou(Shulou.com)06/02 Report--

Copy / etc/profile to / tmp/ directory

[root@Contos7 tmp] # cp / etc/profile / tmp

Delete a blank line in the / tmp/profile file

Delete the white space character at the beginning of the line in the / tmp/profile file with the find replace command

Sed's @ ^ [[: space:]] + @ @ 'profile

Before execution:

After execution:

[root@Contos7 tmp] # sed's @ ^ [[space:]]\ + @ @ 'profile

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