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Commands using unset from sorted by
Terminal - Commands using unset - 12 results
bashrc-reload() { builtin unalias -a; builtin unset -f $(builtin declare -F | sed 's/^.*declare[[:blank:]]\+-f[[:blank:]]\+//'); . ~/.bashrc; }
2014-03-02 14:24:18
User: Xk2c
Functions: sed unalias unset
2

Simply sourcing .bashrc does not function correctly when you edit it and change an alias for a function or the other way round with the *same name*.

I therefor use this function. Prior to re-sourcing .bashrc it unsets all aliases and functions.

echo 'set term dumb; unset border; unset xtics; unset ytics; p "< seq 10 | shuf" u 1:(rand(0)) w l notitle' | gnuplot
alias -g R=' &; jobs | tail -1 | read A0 A1 A2 cmd; echo "running $cmd"; fg "$cmd"; zenity --info --text "$cmd done"; unset A0 A1 A2 cmd'
2010-12-13 17:44:36
User: pipeliner
Functions: alias echo fg jobs read tail unset
1

make, find and a lot of other programs can take a lot of time. And can do not. Supppose you write a long, complicated command and wonder if it will be done in 3 seconds or 20 minutes. Just add "R" (without quotes) suffix to it and you can do other things: zsh will inform you when you can see the results.

You can replace zenity with other X Window dialogs program.

bm() { export BM${1?"bookmark name missing"}="$PWD" ; }; forget() { unset BM${1?"bookmark name missing"} ; }
2010-11-19 12:15:11
User: unefunge
Functions: export unset
2

pushd and popd are your friends, but sometimes they're just incompatible with the way one works...

Two shell functions:

bm bookmarkname - "bookmarks" the current directory, just 'cd $BMbookmarkname' to return to it.

forget bookmarkname - unsets the 'bookmarkname' variable. It isn't mandatory, they cease to exist when the session ends.

unset HISTFILE
2010-11-15 09:16:11
User: Delian
Functions: unset
6

Unsetting HISTFILE avoid getting current session history list saved.

unset MANPATH; manpath >/dev/null
2010-07-02 19:45:27
Functions: manpath unset
Tags: man PATH
0

If I type 'man something', I want it to find the manpage in the same order as my PATH.

You can add something like this to your .bashrc

#

# Add my MacPorts, my personal utilities and my company utilities to my PATH.

export PATH=$PATH:/opt/local/bin:$HOME/bin:/our_company_utils/bin/

# Now set the manpath based on the PATH, after man(1) parses man.conf

# - No need to modify man.conf or manually modify MANPATH_MAP

# - Works on Linux, FreeBSD & Darwin, unlike /etc/manpaths.d/

# Must unset MANPATH first. MANPATH is set on some systems automatically (Mac),

# which causes manpath to ignore the values of PATH like /opt/local/bin (MacPorts).

# Also MANPATH may be deprecated. See "SEARCH PATH FOR MANUAL PAGES" in man(1)

unset MANPATH

# manpath acts differently on Solaris, FreeBSD, MacOSX & GNU. This works everywhere.

manpath >/dev/null

#

Note that MacOSX, FreeBSD & Linux have fancier ways to do some of this. (e.g. 'man --path' or 'man -q'), but this command is more universal and should work everywhere.

box(){ c=${2-=}; l=$c$c${1//?/$c}$c$c; echo -e "$l\n$c $1 $c\n$l"; unset c l;}
2010-02-26 17:14:52
User: mightybs
Functions: c++ echo unset
Tags: bash echo
2

First argument: string to put a box around.

Second argument: character to use for box (default is '=')

Same as command #4962, cleaned up, shortened, and more efficient. Now a ' * ' can be used as the box character, and the variables get unset so they don't mess with anything else you might have.

They marked c++ as a function for this command, but I'm not sure why. Must be a bug.

MYSQL="mysql -h HOST -u USERNAME -pPASSWORD -D DB_NAME" ; $MYSQL -BNe "show tables" | awk '{print "set foreign_key_checks=0; drop table `" $1 "`;"}' | $MYSQL unset MYSQL
function nowrap { export COLS=`tput cols` ; cut -c-$COLS ; unset COLS ; }
unset TMOUT
2009-05-20 14:57:50
User: sharfah
Functions: unset
7

Unset TMOUT or set it to 0 in order to prevent shell autologout. TMOUT is the number of seconds after which the present shell will be killed if it has been idle for that long.

unset HISTFILE
2009-05-20 14:46:18
User: syssyphus
Functions: unset
14

this will cause any commands that you have executed in the current shell session to not be written in your bash_history file upon logout

unset files i; set -f; O=$IFS; while IFS= read -r -d $'\0' files[i++]; do :; done < <(find . -name '*.avi' -print0) && IFS=$O; set +f && echo "Running: mplayer \"${files[ $(( $RANDOM % ${#files[@]} )) ]}\""
2009-02-18 16:53:57
User: DEinspanjer
Functions: echo find read set unset
0

unsets variables used by the one-liner

sets up the IFS bash variable to not be affected by whitespace and disables extra glob expansion

uses read to slurp the results of the find command into an array

selects an element of the array at random to be passed as an argument to mplayer