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Saving first n lines of history

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# 1  
Old 02-12-2019
Saving first n lines of history
Say you want to clear your .bash_history except for the first 25 lines. Try:
Code:
sed -i -e 26,500d .bash_history

I have a some frequently-used routines parked in the first few lines, and they kept getting overwritten by more recent commands.
# 2  
Old 02-12-2019
I'd rather use .profile or other shell init / rc files to revive those 25 most needed commands at each login.
This User Gave Thanks to RudiC For This Post:
Xubuntu56
# 3  
Old 02-12-2019
in your .bash_profile (or .profile) you could do:
Code:
HISTFILESIZE= 
HISTSIZE=

to make your bash history unlimited; this way they won't be overwritten.
This User Gave Thanks to milhan For This Post:
Xubuntu56
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