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Various updates to .bashrc - see full log.

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Rework a lot of the ssh agent handling functions.
Use $HOME rather than ~.
Increase history file size to 1m lines.
Use a 3rd colour for the prompt's username if it's != (root|tadgy).
Quote some variables.
Handle .nanorc files on Linux and Darwin.
Refactored some code, nothing major.
This commit is contained in:
Darren 'Tadgy' Austin 2023-09-29 16:33:03 +01:00
commit 1255f0fff6
1 changed files with 147 additions and 85 deletions
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232
.bashrc
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@ -1,50 +1,58 @@
#!/bin/bash - not strictly necessary, but helps nano with syntax highlighting. #!/bin/bash - not strictly necessary, but helps nano with syntax highlighting.
__find_ssh_agent_sock() { __find_ssh_agent_sock() {
# Returns: 0 = Found an alternative socket. # Find an *active* ssh agent socket.
# Returns: 0 = Found an active socket.
# 1 = Did not find a viable socket. # 1 = Did not find a viable socket.
local ERR I local I
# Search the SSH_AUTH_SOCKS array for a viable socket. # Search the SSH_AUTH_SOCKS array for a viable socket.
for ((I = 0; I < ${#SSH_AUTH_SOCKS[@]}; I++)); do for ((I = 0; I < ${#SSH_AUTH_SOCKS[@]}; I++)); do
[[ "${SSH_AUTH_SOCKS[$I]}" =~ ^[[:blank:]]*$ ]] && continue
SSH_AUTH_SOCK="${SSH_AUTH_SOCKS[$I]}" ssh-add -l >/dev/null 2>&1 SSH_AUTH_SOCK="${SSH_AUTH_SOCKS[$I]}" ssh-add -l >/dev/null 2>&1
(( $? < 2 )) && { export SSH_AUTH_SOCK="${SSH_AUTH_SOCKS[$I]}"; break; } (( $? <= 1 )) && {
export SSH_AUTH_SOCK="${SSH_AUTH_SOCKS[$I]}"
return 0
}
unset SSH_AUTH_SOCK unset SSH_AUTH_SOCK
done done
[[ -z "$SSH_AUTH_SOCK" ]] && return 1 return 1
return 0
} }
__read_ssh_agents() { __read_ssh_agents() {
# Read all the known ssh agent sockets into an array.
# Returns: 0 = Processed and read the agents file without issue. # Returns: 0 = Processed and read the agents file without issue.
# 1 = Error processing/read the agents file. # 1 = Error processing/reading the agents file.
local ERR FD I SOCK local ERR FD I PLATFORM SOCK
[[ ! -e ~/.ssh/agents ]] && touch ~/.ssh/agents [[ ! -e "$HOME/.ssh/agents" ]] && touch "$HOME/.ssh/agents"
# Determine the platform being logged into.
PLATFORM="$(uname -s)"
# Lock the ~/.ssh/agents file. # Lock the ~/.ssh/agents file.
if [[ "$(uname -s)" == "Linux" ]]; then if [[ "$PLATFORM" == "Linux" ]]; then
# Linux has 'flock', thankfully. # Linux has 'flock', thankfully.
{ exec {FD}<~/.ssh/agents && flock -E 10 -e -w 0.5 "$FD"; } || { exec {FD}<"$HOME/.ssh/agents" && flock -E 10 -e -w 0.5 "$FD"
ERR=$? ERR=$?
if (( ERR == 10 )); then if (( ERR == 10 )); then
printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to obtain lock on ~/.ssh/agents." >&2 printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to obtain lock on ~/.ssh/agents." >&2
else
printf "\\033[1;31;40m%s\\033[0;39m\\n" "Flock usage error." >&2
fi
return 1 return 1
} elif (( ERR > 0 )); then
printf "\\033[1;31;40m%s\\033[0;39m\\n" "Flock usage error." >&2
return 1
fi
# Make note of the mtime for use in write_ssh_agents. # Make note of the mtime for use in write_ssh_agents.
SSH_AGENTS_MTIME="$(stat --format=%.9Y ~/.ssh/agents)" SSH_AGENTS_MTIME="$(stat --format=%.9Y "$HOME/.ssh/agents")"
elif [[ "$(uname -s)" == "Darwin" ]]; then elif [[ "$PLATFORM" == "Darwin" ]]; then
# Do locking the sucky way on macOS. # Do locking the sucky way on macOS.
for ((I = 0; I < 6; I++)); do for ((I = 0; I <= 5; I++)); do
if shlock -p "$$" -f ~/.ssh/agents.lock; then if shlock -p "$$" -f "$HOME/.ssh/agents.lock"; then
exec {FD}<~/.ssh/agents exec {FD}<"$HOME/.ssh/agents"
# Make note of the mtime for use in write_ssh_agents. # Make note of the mtime for use in write_ssh_agents.
SSH_AGENTS_MTIME="$(stat -f %Fm ~/.ssh/agents)" SSH_AGENTS_MTIME="$(stat -f %Fm "$HOME/.ssh/agents")"
ERR=0 ERR=0
break break
else else
@ -52,33 +60,41 @@ __read_ssh_agents() {
sleep 0.1 sleep 0.1
fi fi
done done
(( ERR != 0 )) && { printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to obtain lock on ~/.ssh/agents." >&2; return 1; } (( ERR != 0 )) && {
printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to obtain lock on ~/.ssh/agents." >&2
return 1
}
else else
printf "\\033[1;31;40m%s\\033[0;39m\\n" "File locking unsupported on this platform." >&2 printf "\\033[1;31;40m%s\\033[0;39m\\n" "File locking unsupported on '$PLATFORM'." >&2
return 1 return 1
fi fi
# Read the socket list (bash v3+ compliant) # Read the socket list (bash v2+ compliant)
while read -u "$FD" -r SOCK; do while read -u "$FD" -r SOCK; do
[[ -n "$SOCK" ]] && SSH_AUTH_SOCKS+=("$SOCK") [[ -n "$SOCK" ]] && SSH_AUTH_SOCKS+=("$SOCK")
done done
ERR=$? ERR=$?
# Close the file descriptor (which on Linux releases the lock too). # Close the file descriptor (which on Linux releases the flock too).
exec {FD}<&- exec {FD}<&-
# On Darwin, release the lock on the file. # On Darwin, release the lock on the file.
rm -f ~/.ssh/agents.lock rm -f "$HOME/.ssh/agents.lock"
# Remove the . in the mtime. # Remove the . in the mtime.
SSH_AGENTS_MTIME="${SSH_AGENTS_MTIME/\.}" SSH_AGENTS_MTIME="${SSH_AGENTS_MTIME/\.}"
# Error out if the data couldn't be read. # Error out if the data couldn't be read.
(( ERR != 0 )) && { printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to read ssh-agent socket list." >&2; unset SSH_AUTH_SOCKS; return 1; } (( ERR != 0 )) && {
printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to read ssh-agent socket list." >&2
unset SSH_AUTH_SOCKS SSH_AGENTS_MTIME
return 1
}
return 0 return 0
} }
__write_ssh_agents() { __write_ssh_agents() {
# Write all unique ssh agent sockets into the ~/.ssh/agents file.
# Returns: 0 = Processed and wrote the agents file without issue. # Returns: 0 = Processed and wrote the agents file without issue.
# 1 = Error processing/writing the agents file. # 1 = Error processing/writing the agents file.
# 2 = The SSH_AUTH_SOCKS array may be out of date as the agents file'a mtime has changed. # 2 = The SSH_AUTH_SOCKS array may be out of date as the agents file'a mtime has changed.
@ -89,40 +105,43 @@ __write_ssh_agents() {
# Remove any duplicates from SSH_AUTH_SOCKS. # Remove any duplicates from SSH_AUTH_SOCKS.
for ((I = 0; I < ${#SSH_AUTH_SOCKS[@]}; I++)); do for ((I = 0; I < ${#SSH_AUTH_SOCKS[@]}; I++)); do
[[ -z "${SSH_AUTH_SOCKS[$I]}" ]] && continue
for ((J = 0; J < ${#SOCKS[@]}; J++)); do for ((J = 0; J < ${#SOCKS[@]}; J++)); do
[[ "${SSH_AUTH_SOCKS[$I]}" == "${SOCKS[$J]}" ]] && continue 2 [[ "${SSH_AUTH_SOCKS[$I]}" == "${SOCKS[$J]}" ]] && continue 2
done done
# Only add the socket if it's still viable. # Only add the socket if it's still viable.
[[ -n "${SSH_AUTH_SOCKS[$I]}" ]] && { SSH_AUTH_SOCK="${SSH_AUTH_SOCKS[$I]}" ssh-add -l >/dev/null 2>&1
SSH_AUTH_SOCK="${SSH_AUTH_SOCKS[$I]}" ssh-add -l >/dev/null 2>&1 (( $? <= 1 )) && SOCKS+=("${SSH_AUTH_SOCKS[$I]}")
(( $? < 2 )) && SOCKS+=("${SSH_AUTH_SOCKS[$I]}")
}
done done
# Determine the platform being logged into.
PLATFORM="$(uname -s)"
# Lock the ~/.ssh/agents file. # Lock the ~/.ssh/agents file.
if [[ "$(uname -s)" == "Linux" ]]; then if [[ "$PLATFORM" == "Linux" ]]; then
# Make sure SSH_AUTH_SOCKS has the most up to date data. # Make sure SSH_AUTH_SOCKS has the most up to date data.
MTIME="$(stat --format=%.9Y ~/.ssh/agents)" MTIME="$(stat --format=%.9Y "$HOME/.ssh/agents")"
(( ${MTIME/\.} > SSH_AGENTS_MTIME )) && return 2 (( ${MTIME/\.} > SSH_AGENTS_MTIME )) && return 2
# Lock the agents file. # Lock the agents file.
{ exec {FD}>~/.ssh/agents && flock -E 10 -e -w 0.5 "$FD"; } || { exec {FD}<"$HOME/.ssh/agents" && flock -E 10 -e -w 0.5 "$FD"
if (( $? == 10 )); then ERR=$?
printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to obtain lock on ~/.ssh/agents." >&2 if (( ERR == 10 )); then
else printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to obtain lock on ~/.ssh/agents." >&2
printf "\\033[1;31;40m%s\\033[0;39m\\n" "Flock usage error" >&2
fi
return 1 return 1
} elif (( ERR > 0 )); then
printf "\\033[1;31;40m%s\\033[0;39m\\n" "Flock usage error." >&2
return 1
fi
elif [[ "$(uname -s)" == "Darwin" ]]; then elif [[ "$(uname -s)" == "Darwin" ]]; then
# Make sure SSH_AUTH_SOCKS has the most up to date data. # Make sure SSH_AUTH_SOCKS has the most up to date data.
MTIME="$(stat --format=%.9Y ~/.ssh/agents)" MTIME="$(stat --format=%.9Y "$HOME/.ssh/agents")"
(( ${MTIME/\.} > SSH_AGENTS_MTIME )) && return 2 (( ${MTIME/\.} > SSH_AGENTS_MTIME )) && return 2
# Do locking the sucky way on OSX. # Do locking the sucky way on OSX.
for ((I = 0; I < 6; I++)); do for ((I = 0; I <= 5; I++)); do
if shlock -p "$$" -f ~/.ssh/agents.lock; then if shlock -p "$$" -f "$HOME/.ssh/agents.lock"; then
exec {FD}>~/.ssh/agents exec {FD}<"$HOME/.ssh/agents"
ERR=0 ERR=0
break break
else else
@ -130,38 +149,48 @@ __write_ssh_agents() {
sleep 0.1 sleep 0.1
fi fi
done done
(( ERR != 0 )) && { printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to obtain lock on ~/.ssh/agents." >&2; return 1; } (( ERR != 0 )) && {
printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to obtain lock on ~/.ssh/agents." >&2
return 1
}
else else
printf "\\033[1;31;40m%s\\033[0;39m\\n" "File locking unsupported on this platform." >&2 printf "\\033[1;31;40m%s\\033[0;39m\\n" "File locking unsupported on '$PLATFORM'." >&2
return 1 return 1
fi fi
# Write the cleaned array to disk. # Write the cleaned array to disk.
printf "%s\\n" "${SOCKS[@]}" >~/.ssh/agents 2>/dev/null ERR=-1
ERR=$? [[ -n "${SOCKS[*]}" ]] && { printf "%s\\n" "${SOCKS[@]}" >"$HOME/.ssh/agents" 2>/dev/null; ERR=$?; }
# Release locks. # Release locks.
exec {FD}>&- exec {FD}>&-
rm -f ~/.ssh/agents.lock rm -f "$HOME/.ssh/agents.lock"
# Error out if the data couldn't be written. # Error out if the data couldn't be written.
(( ERR != 0 )) && { printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to write ssh-agent socket list." >&2; return 1; } if (( ERR == -1 )); then
rm -f "$HOME/.ssh/agents" 2>/dev/null
elif (( ERR >= 1 )); then
rm -f "$HOME/.ssh/agents" 2>/dev/null
printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to write ssh-agent socket list." >&2
return 1
fi
return 0 return 0
} }
__ssh_agent_prompt_command() { __ssh_agent_prompt_command() {
# If necessary, find and activate a new ssh agent socket before each prompt is displayed.
# Returns: 0 = All is good. # Returns: 0 = All is good.
# 1 = And error occured. # 1 = An error occured.
local ERR SSH_AUTH_SOCKS=() local ERR
if [[ -z "$SSH_AUTH_SOCK" ]]; then if [[ -z "$SSH_AUTH_SOCK" ]]; then
ERR=2 ERR=2
else else
SSH_AUTH_SOCK="$SSH_AUTH_SOCK" ssh-add -l >/dev/null 2>&1 ssh-add -l >/dev/null 2>&1
ERR=$? ERR=$?
fi fi
(( ERR == 2 )) && { (( ERR == 2 )) && {
# Read previous sockets from ~/.ssh/agents. # Read alternative sockets from ~/.ssh/agents.
__read_ssh_agents || { __read_ssh_agents || {
unset SSH_AUTH_SOCK unset SSH_AUTH_SOCK
return 1 return 1
@ -173,25 +202,22 @@ __ssh_agent_prompt_command() {
else else
# Start a new agent. # Start a new agent.
eval "$(ssh-agent -s 2>/dev/null | grep -v 'echo'; printf "%s" "ERR=${PIPESTATUS[0]}")" eval "$(ssh-agent -s 2>/dev/null | grep -v 'echo'; printf "%s" "ERR=${PIPESTATUS[0]}")"
(( ERR > 0 )) && { printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to start ssh-agent - continuing with no agent." >&2; return 1; } (( ERR > 0 )) && {
printf "\\033[1;31;40m%s\\033[0;39m\\n" "Failed to start new ssh-agent - continuing with no agent."
return 1
}
printf "\\033[1;32;40m%s\\033[0;39m\\n" "Started new ssh-agent." printf "\\033[1;32;40m%s\\033[0;39m\\n" "Started new ssh-agent."
fi fi
# Update the agents file.
while :; do
__write_ssh_agents
ERR=$?
(( ERR == 2 )) && { __read_ssh_agents || return 1; } && continue
(( ERR == 1 )) && return 1
break
done
} }
return 0 return 0
} }
imagebin() { imagebin() {
[[ -z "$1" ]] && { printf "%s: %s\\n" "Usage" "${FUNCNAME[0]} <filename>" >&2; return 1; } [[ -z "$1" ]] && {
curl -F file="@${1:-}" https://imagebin.ca/upload.php | grep ^url: | cut -d: -f2- printf "%s: %s\\n" "Usage" "${FUNCNAME[0]} <filename>" >&2
return 1
}
curl -F file="@$1" https://imagebin.ca/upload.php | grep '^url:' | cut -d: -f2-
} }
# Make bash a little more pleasent - these are valid for all versions. # Make bash a little more pleasent - these are valid for all versions.
@ -203,17 +229,19 @@ IGNOREEOF=0
# History control. # History control.
HISTCONTROL="ignoredups" HISTCONTROL="ignoredups"
HISTFILE="$HOME/.bash_history-${HOSTNAME%%.*}" HISTFILE="$HOME/.bash_history-${HOSTNAME%%.*}"
HISTFILESIZE=100000 HISTFILESIZE=1000000
HISTIGNORE="bg:bg *:fg:fg *:jobs:exit:clear:history" HISTIGNORE="bg:bg *:fg:fg *:jobs:exit:clear:history"
HISTSIZE=-1 HISTSIZE=-1
HISTTIMEFORMAT="%d/%m/%y %H:%M:%S " HISTTIMEFORMAT="%d/%m/%y %H:%M:%S "
history -r history -r
# Determine the colour of the username in the prompt. # Determine the colour of the username in the prompt.
if (( $(id -u) == 0 )); then if [[ "$LOGNAME" == "root" ]]; then
COLOUR=1 # Red COLOUR=1 # Red
else elif [[ "$LOGNAME" == "tadgy" ]]; then
COLOUR=2 # Green COLOUR=2 # Green
else
COLOUR=5 # Purple
fi fi
# Version specific set up. # Version specific set up.
@ -221,18 +249,20 @@ if (( BASH_VERSINFO[0] >= 4 )); then
# Add to the shopts. # Add to the shopts.
shopt -s checkjobs dirspell shopt -s checkjobs dirspell
# Set the prompts. # Trim the path in the prompt.
PROMPT_DIRTRIM=2 PROMPT_DIRTRIM=2
# Coloured username + host + directory: # Coloured username + host + directory:
PS1="[\[$(tput bold)$(tput setaf $COLOUR)\]\u\[$(tput sgr0)\]@\[$(tput bold)$(tput setaf 3)\]\h\[$(tput sgr0)\]] \[$(tput bold)$(tput setaf 4)\]\w\[$(tput sgr0)\] ->" PS1="[\[$(tput bold)$(tput setaf "$COLOUR")\]\u\[$(tput sgr0)\]@\[$(tput bold)$(tput setaf 3)\]\h\[$(tput sgr0)\]] \[$(tput bold)$(tput setaf 4)\]\w\[$(tput sgr0)\] ->"
else else
# Set the prompts. # Set the prompts.
# Coloured username + host + directory: # Coloured username + host + directory:
PS1="[\[$(tput bold)$(tput setaf $COLOUR)\]\u\[$(tput sgr0)\]@\[$(tput bold)$(tput setaf 3)\]\h\[$(tput sgr0)\]] \[$(tput bold)$(tput setaf 4)\]\$(echo \"\${PWD/#\$HOME/~}\" | awk -F/ '{if (NF>3) {printf \".../\" \$(NF-1) \"/\" \$NF} else {printf \$0}}')\[$(tput sgr0)\] ->" # shellcheck disable=SC2154
PS1="[\[$(tput bold)$(tput setaf "$COLOUR")\]\u\[$(tput sgr0)\]@\[$(tput bold)$(tput setaf 3)\]\h\[$(tput sgr0)\]] \[$(tput bold)$(tput setaf 4)\]\$(echo \"\${PWD/#\$HOME/~}\" | awk -F/ '{if (NF>3) {printf \".../\" \$(NF-1) \"/\" \$NF} else {printf \$0}}')\[$(tput sgr0)\] ->"
fi fi
unset COLOUR unset COLOUR
# Set the debugger prompt. # Set the debugger prompt.
# shellcheck disable=SC2155
export PS4="+(\[\e[1;33;40m\]\$?\[$(tput sgr0)\]) \[$(tput bold)$(tput setaf 4)\]\${BASH_SOURCE##*/}\[$(tput sgr0)\]\${FUNCNAME[0]:+(\[$(tput bold)$(tput setaf 2)\]\${FUNCNAME[0]}\[$(tput sgr0)\])}:\[$(tput bold)$(tput setaf 1)\]\$LINENO\[$(tput sgr0)\]: " export PS4="+(\[\e[1;33;40m\]\$?\[$(tput sgr0)\]) \[$(tput bold)$(tput setaf 4)\]\${BASH_SOURCE##*/}\[$(tput sgr0)\]\${FUNCNAME[0]:+(\[$(tput bold)$(tput setaf 2)\]\${FUNCNAME[0]}\[$(tput sgr0)\])}:\[$(tput bold)$(tput setaf 1)\]\$LINENO\[$(tput sgr0)\]: "
# The commands to execute before the prompt is displayed. # The commands to execute before the prompt is displayed.
@ -241,11 +271,15 @@ PROMPT_COMMAND="__ssh_agent_prompt_command"
# Common aliases. # Common aliases.
hash bc >/dev/null 2>&1 && alias bc='bc -lq' hash bc >/dev/null 2>&1 && alias bc='bc -lq'
hash diff >/dev/null 2>&1 && alias diff='diff --color=auto -u' hash diff >/dev/null 2>&1 && alias diff='diff --color=auto -u'
hash grep >/dev/null 2>&1 && alias egrep='grep -E --color=auto' hash gpg2 >/dev/null 2>&1 && alias gpg='gpg2'
hash grep >/dev/null 2>&1 && alias fgrep='grep -F --color=auto' hash grep >/dev/null 2>&1 && {
hash grep >/dev/null 2>&1 && alias grep='grep --color=auto' alias egrep='grep -E --color=auto'
alias fgrep='grep -F --color=auto'
alias grep='grep --color=auto'
}
hash nc >/dev/null 2>&1 && alias pastebin='nc termbin.com 9999' hash nc >/dev/null 2>&1 && alias pastebin='nc termbin.com 9999'
hash screen >/dev/null 2>&1 && alias screen='screen -Ua'
# Auto start the ssh agent and add keys for scp/sftp/ssh.
hash scp ssh ssh-add >/dev/null 2>&1 && alias scp='_EXEC=scp ssh' hash scp ssh ssh-add >/dev/null 2>&1 && alias scp='_EXEC=scp ssh'
hash sftp ssh ssh-add >/dev/null 2>&1 && alias sftp='_EXEC=sftp ssh' hash sftp ssh ssh-add >/dev/null 2>&1 && alias sftp='_EXEC=sftp ssh'
hash ssh ssh-add >/dev/null 2>&1 && ssh() { hash ssh ssh-add >/dev/null 2>&1 && ssh() {
@ -254,13 +288,16 @@ hash ssh ssh-add >/dev/null 2>&1 && ssh() {
if [[ -z "$SSH_AUTH_SOCK" ]]; then if [[ -z "$SSH_AUTH_SOCK" ]]; then
ERR=2 ERR=2
else else
SSH_AUTH_SOCK="$SSH_AUTH_SOCK" ssh-add -l >/dev/null 2>&1 ssh-add -l >/dev/null 2>&1
ERR=$? ERR=$?
fi fi
(( ERR == 2 )) && __ssh_agent_prompt_command && ssh-add if (( ERR == 1 )); then
(( ERR == 1 )) && ssh-add ssh-add
elif (( ERR == 2 )); then
__ssh_agent_prompt_command
ssh-add
fi
command "${_EXEC:-${FUNCNAME[0]}}" "$@" command "${_EXEC:-${FUNCNAME[0]}}" "$@"
unset _EXEC
} }
# Determine the platform being logged into. # Determine the platform being logged into.
@ -269,9 +306,24 @@ PLATFORM="$(uname -s)"
# Platform specific set up. # Platform specific set up.
if [[ "$PLATFORM" = "Linux" ]]; then if [[ "$PLATFORM" = "Linux" ]]; then
# Linux specific functions. # Linux specific functions.
psgrep() { hash nano >/dev/null 2>&1 && nano() {
[[ -z "$1" ]] && { printf "%s: %s\\n" "Usage" "${FUNCNAME[0]} <something>" >&2; return 1; } # shellcheck disable=SC2155
ps -auwwx | command grep -E --color=always -- "(.*RSS.*|$1)" | grep -F -v "(.*RSS.*|" local NANO_VER="$(command nano --version | awk '/version/ { print $4 }' | cut -d. -f1)"
if [[ -f "$HOME/.nanorc-$NANO_VER" ]]; then
command nano -f "$HOME/.nanorc-$NANO_VER" "$@"
else
printf "%s: %s\\n" "${FUNCNAME[0]}" "no .nanorc for version '$NANO_VER'" >&2
return 1
fi
}
hash ps grep >/dev/null 2>&1 && psgrep() {
if [[ -n "$1" ]]; then
# shellcheck disable=SC2009
ps -auwwx | grep -E --color=always -- "(.*RSS.*|$1)" | grep -F -v '(.*RSS.*|'
else
printf "%s: %s\\n" "Usage" "${FUNCNAME[0]} <something>" >&2
return 1
fi
} }
# Linux specific aliases. # Linux specific aliases.
@ -287,6 +339,16 @@ if [[ "$PLATFORM" = "Linux" ]]; then
hash pinfo >/dev/null 2>&1 && alias info='pinfo' hash pinfo >/dev/null 2>&1 && alias info='pinfo'
hash ping >/dev/null 2>&1 && alias ping='ping -b' hash ping >/dev/null 2>&1 && alias ping='ping -b'
elif [[ "$PLATFORM" = "Darwin" ]]; then elif [[ "$PLATFORM" = "Darwin" ]]; then
# Create .nanorc symlink if necessary.
[[ ! -e "$HOME/.nanorc" ]] && {
NANO_VER="$(command nano --version | awk '/version/ { print $4 }' | cut -d. -f1)"
if [[ -f "$HOME/.nanorc-$NANO_VER" ]]; then
( cd "$HOME" && ln -sf ".nanorc-$NANO_VER" .nanorc ) || printf "%s: %s\\n" "${BASH_SOURCE##*/}" "failed to create .nanorc symlink" >&2
else
printf "%s: %s\\n" "${BASH_SOURCE##*/}" "no .nanorc for version '$NANO_VER'" >&2
fi
}
# Darwin specific aliases. # Darwin specific aliases.
hash df >/dev/null 2>&1 && alias df='df -P' hash df >/dev/null 2>&1 && alias df='df -P'
hash ls >/dev/null 2>&1 && alias ls='ls -bFG' hash ls >/dev/null 2>&1 && alias ls='ls -bFG'