linux服务器查看日志less命令

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本文介绍了less命令行工具的基本用法及快捷键操作。包括前后翻页、搜索功能、定位文件位置等实用技巧，帮助用户高效浏览和查找文本文件内容。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

less filename

常用的命令：

shift + g 查询最新的

？搜索

ctrl + insert 复制

shift + insert 粘贴

g help
b 向后翻（看之前的日志）
f 往前翻（看最新的日志）

执行g ，即可查看完整的less 参考命令
SUMMARY OF LESS COMMANDS

Commands marked with * may be preceded by a number, N.
Notes in parentheses indicate the behavior if N is given.

h H Display this help.
q :q Q :Q ZZ Exit.
---------------------------------------------------------------------------

MOVING

e ^E j ^N CR * Forward one line   (or N lines).
y ^Y k ^K ^P * Backward one line   (or N lines).
f ^F ^V SPACE * Forward one window (or N lines).
b ^B ESC-v      * Backward one window (or N lines).
z                 * Forward one window (and set window to N).
w                 * Backward one window (and set window to N).
ESC-SPACE         * Forward one window, but don't stop at end-of-file.
d ^D             * Forward one half-window (and set half-window to N).
u ^U             * Backward one half-window (and set half-window to N).
ESC-) RightArrow * Left one half screen width (or N positions).
ESC-( LeftArrow * Right one half screen width (or N positions).
F                    Forward forever; like "tail -f".
r ^R ^L            Repaint screen.
R                    Repaint screen, discarding buffered input.
        ---------------------------------------------------
        Default "window" is the screen height.
        Default "half-window" is half of the screen height.
---------------------------------------------------------------------------

SEARCHING

/pattern          * Search forward for (N-th) matching line.
?pattern          * Search backward for (N-th) matching line.
n                 * Repeat previous search (for N-th occurrence).
N                 * Repeat previous search in reverse direction.
ESC-n             * Repeat previous search, spanning files.
ESC-N             * Repeat previous search, reverse dir. & spanning files.
ESC-u                Undo (toggle) search highlighting.
&pattern          * Display only matching lines
        ---------------------------------------------------
        Search patterns may be modified by one or more of:
        ^N or ! Search for NON-matching lines.
        ^E or * Search multiple files (pass thru END OF FILE).
        ^F or @ Start search at FIRST file (for /) or last file (for ?).
        ^K       Highlight matches, but don't move (KEEP position).
        ^R       Don't use REGULAR EXPRESSIONS.
---------------------------------------------------------------------------

JUMPING

g < ESC-<       * Go to first line in file (or line N).
G > ESC->       * Go to last line in file (or line N).
p %              * Go to beginning of file (or N percent into file).
t                 * Go to the (N-th) next tag.
T                 * Go to the (N-th) previous tag.
{ ( [           * Find close bracket } ) ].